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Etching approach to hybrid structures of PtPd nanocages and graphene for efficient oxygen reduction reaction catalysts

Song Bai1, Chengming Wang1 (*), Wenya Jiang1, Nana Du1, Jing Li1, Junteng Du1, Ran Long1, Zhengquan Li2, and Yujie Xiong1 (*)

1 Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, School of Chemistry and Materials Science, Laboratory of Engineering and Material Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
2 Department of Materials Physics, Zhejiang Normal University, Jinhua, Zhejiang 321004, China

DOI 10.1007/s12274-015-0770-6

Nano Research 2015, 8(9):2789每2799

Address correspondence to Yujie Xiong, yjxiong@ustc.edu.cn; Chengming Wang, chmwang@ustc.edu.cn

A method has been developed to synthesize hybrid structures between PtPd bimetallic nanocages and graphene by employing selective epitaxial growth of single-crystal Pt shells on Pd nano- cubes supported on reduced graphene oxide (rGO), followed by Pd etching. The hollow nature, {100} surface facets and bimetallic composition of the PtPd nanocages, together with the good conductivity and stability of graphene, enable high electrocatalytic performance in the oxygen reduction reaction (ORR).

    

All-carbon nanotube diode and solar cell statistically formed from macroscopic network

Albert G. Nasibulin1,2,3 (*), Adinath M. Funde3,4, Ilya V. Anoshkin3, and Igor A. Levitsky5,6 (*)

1 Skolkovo Institute of Science and Technology, 100 Novaya str., Skolkovo, Moscow Region, 143025, Russia 2 Saint-Petersburg State Polytechnical University, Department of Material Science, Polytechnicheskaya 29, 195251, Saint-Petersburg, Russia
3 Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, 00076, Espoo, Finland
4 School of Energy Studies, Savitribai Phule Pune University, Ganeshkhind, Pune-411007, India
5 Department of Chemistry, University of Rhode Island, RI 02881, USA
6 Emitech, Inc. Fall River, MA 02720, USA

DOI 10.1007/s12274-015-0785-z

Nano Research 2015, 8(9):2800每2809

Address correspondence to Albert G. Nasibulin, a.nasibulin@skoltech.ru; Igor A. Levitsky, ilevitsky@emitechinc.com

All-carbon nanotube (CNT) diode and solar cells formed from macroscopic films are fabricated by simple mechanical displacement. Schottky barriers are statistically created in the contact area between the semiconducting and quasi-metallic bundles consisting of several high quality tubes. Photovoltaic response is observed for n-doped CNT films allowing for the development of all-CNT macroscopic solar cells.

    

Development of hydrophilicity gradient ultracentrifuga- tion method for photoluminescence investigation of separated non-sedimental carbon dots

Li Deng, Xiaolei Wang, Yun Kuang, Cheng Wang, Liang Luo (*), Fang Wang, and Xiaoming Sun (*)

State Key Laboratory of Chemical Resource Engineering, Box 98, Beijing University of Chemical Technology, Beijing 100029, China

DOI 10.1007/s12274-015-0786-y

Nano Research 2015, 8(9):2810每2821

Address correspondence to Liang Luo, luoliang@mail.buct.edu.cn; Xiaoming Sun, sunxm@mail.buct.edu.cn

A method of hydrophilicity gradient ultracentrifugation to sort non-sedimental carbon nanodots (CDs) is established. The CDs are pre-treated with acetone to form clusters and then ※de-cluster§ as they are forced to sediment through the media, according to their differences in hydrophilicity.

    

High-performance solar-blind ultraviolet photodetector based on electrospun TiO2-ZnTiO3 heterojunction nanowires

Haining Chong1,2, Guodong Wei2, Huilin Hou2, Huijun Yang1, Minghui Shang2, Fengmei Gao2, Weiyou Yang2 (*), and Guozhen Shen3 (*)

1 Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2 School of Materials, Ningbo University of Technology, Ningbo 315016, China
3 State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors Chinese Academy of Sciences, Beijing 100083, China

DOI 10.1007/s12274-015-0787-x

Nano Research 2015, 8(9):2822每2832

Address correspondence to Weiyou Yang, weiyouyang@tsinghua.org.cn; Guozhen Shen, gzshen@semi.ac.cn

The purpose of this study is to develop high-performance solar- blind UV photodetectors based on electrospun TiO2-ZnTiO3 heterojunction nanowires with wide-range UV photoresponse, high sensitivity, excellent cycle stability, and the ability to operate at high temperatures.

    

Tailoring thermal conductivity by engineering compositional gradients in Si1每xGex superlattices

Pablo Ferrando-Villalba1, Aitor F. Lopeand赤a1 (*), Francesc Xavier Alvarez2 (*), Biplab Paul1,Carla de Tom芍s2, Maria Isabel Alonso3, Miquel Garriga3, Alejandro R. Goñi3,4, Jose Santiso5, Gemma Garcia1, and Javier Rodriguez-Viejo1 (*)

1 Grup de Nanomaterials i Microsistemes, Departament de F赤sica, Universitat Aut辰noma de Barcelona, 08193 Bellaterra, Spain
2 Grup de F赤sica Estad赤stica, Departament de F赤sica, Universitat Aut辰noma de Barcelona, 08193 Bellaterra, Spain
3 Institut de Ci豕ncia de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
4 ICREA, Passeig Llu赤s Companys 23, 08010 Barcelona, Spain
5 Institut Catal角 de Nanoci豕ncia i Nanotecnologia, ICN2-CSIC, Campus UAB, 08193 Bellaterra, Spain
Present address: Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden

DOI 10.1007/s12274-015-0788-9

Nano Research 2015, 8(9):2833每2841

Address correspondence to Javier Rodriguez-Viejo, javier.rodriguez@uab.es; Francesc Xavier Alvarez, xavier.alvarez@uab.es; Aitor F. Lopeand赤a, aitor.lopeandia@uab.es

We present a novel approach for customizing thermal transport across Si/Si1每xGex superlattices (SLs) with well-defined compositional gradients. The spatial inhomogeneity has a remarkable effect on the heat-flow propagation, reducing the thermal conductivity and providing a new path to tailor the thermal transport.

    

High-quality-factor tantalum oxide nanomechanical resonators by laser oxidation of TaSe2

Santiago J. Cartamil-Bueno1 (*), Peter G. Steeneken1 (*), Frans D. Tichelaar2, Efren Navarro-Moratalla3, Warner J. Venstra1, Ronald van Leeuwen1, Eugenio Coronado3, Herre S.J. van der Zant1, Gary A. Steele1, and Andres Castellanos-Gomez1,† (*)

1 Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
2 Kavli Institute of Nanoscience, Delft University of Technology, National Centre for HREM, Lorentzweg 1, 2628 CJ Delft, The Netherlands
3 Instituto Ciencia Molecular (ICMol), Univ. Valencia, C/Catedr芍tico Jos谷 Beltr芍n 2, E-46980 Paterna, Spain
Present address: Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), 28049 Madrid, Spain

DOI 10.1007/s12274-015-0789-8

Nano Research 2015, 8(9):2842每2849

Address correspondence to Santiago J. Cartamil-Bueno, S.J.CartamilBueno@tudeflt.nl; Peter G. Steeneken, P.G.Steeneken@tudelft.nl; Andres Castellanos-Gomez, andres.castellanos@imdea.org

A laser-oxidation technique to fabricate tantalum oxide mechanical resonators with large built-in stress is demonstrated. The oxidized tantalum resonators exhibited enhanced quality factors (14 times larger) and resonance frequencies (9 times larger) compared with pristine (prior to laser oxidation) layered TaSe2 resonators.

    

Reduced graphene oxide/silicon nanowire heterostructures with enhanced photoactivity and superior photoelectrochemical stability

Xing Zhong1,∫, Gongming Wang1,∫, Benjamin Papandrea1, Mufan Li1, Yuxi Xu1, Yu Chen2, Chih-Yen Chen1, Hailong Zhou1, Teng Xue2, Yongjia Li2, Dehui Li1 ,Yu Huang2,3, and Xiangfeng Duan1,3 (*)

1 Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, USA
2 Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA
3 California Nanosystems Institute, University of California, Los Angeles, California 90095, USA
These authors contributed equally to this work.

DOI 10.1007/s12274-015-0790-2

Nano Research 2015, 8(9):2850每2858

Address correspondence to xduan@chem.ucla.edu

We report a hybrid photocatalyst fabricated by wrapping silicon nanowires with reduced graphene oxide sheets to achieve greatly enhanced photoactivity and superior photoelectrochemical stability.

    

Radiofrequency electric-field heating behaviors of highly enriched semiconducting and metallic single-walled carbon nanotubes

Stuart J. Corr1,2,3,∫ (*), Mustafa Raoof2,4,∫, Brandon T. Cisneros2,3,5,∫, Alvin W. Orbaek3, Matthew A. Cheney1,2,3, Justin J. Law1,3, Nadia C. Lara1,3, Andrew R. Barron3,6, Lon J. Wilson3, and Steven A. Curley1,2,7

1 Division of Surgery, Baylor College of Medicine, Houston, TX 77030, USA
2 Department of Surgical Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
3 Department of Chemistry and the Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, TX 77005, USA
4 Department of Surgery, The University of Arizona, College of Medicine, Tucson, AZ 85724, USA
5 Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093, USA
6 College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, Wales, UK
7 Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX 77005, USA
These authors contributed equally to this work.

DOI 10.1007/s12274-015-0791-1

Nano Research 2015, 8(9):2859每2870

Address correspondence to stuart.corr@bcm.edu

Aqueous suspensions of metallic and semiconducting single-walled carbon nanotubes exhibit high heating rates when exposed to radiofrequency (RF) (13.56 MHz) electric fields. The heating was examined as a function of the conductivity of the host medium, which was modulated using NaCl. The results may aid in developing heating agents for non-invasive RF cancer hyperthermia.

    

Ag nanoparticle/polymer composite barcode nanorods

Hongxu Chen1, Tieqiang Wang2, Huaizhong Shen1, Wendong Liu1, Shuli Wang1, Kun Liu1, Junhu Zhang1 (*), and Bai Yang1

1 State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
2 Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110004, China

DOI 10.1007/s12274-015-0792-0

Nano Research 2015, 8(9):2871每2880

Address correspondence to zjh@jlu.edu.cn

Ag nanoparticle/polymer composite barcode nanorods with a well- defined number of segments, height, and density of Ag NPs were fabricated by the integration of colloidal lithography, selective ion-exchange, and the in situ reduction of Ag+.

    

Chemical vapor deposition of monolayer WS2 nanosheets on Au foils toward direct application in hydrogen evolution

Yanshuo Zhang1,2,∫, Jianping Shi1,2,∫, Gaofeng Han3, Minjie Li2, Qingqing Ji2, Donglin Ma2, Yu Zhang1,2, Cong Li1,2, Xingyou Lang3 (*), Yanfeng Zhang1,2 (*), and Zhongfan Liu2

1 Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
2 Center for Nanochemistry (CNC), Beijing science and Engineering center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
3 Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
These authors contributed equally to this work.

DOI 10.1007/s12274-015-0793-z

Nano Research 2015, 8(9):2881每2890

Address correspondence to Yanfeng Zhang, yanfengzhang@pku.edu.cn; Xingyou Lang, xylang@jlu.edu.cn

Monolayer WS2 triangles were synthesized on Au foils using a facile chemical vapor deposition method, with the edge lengths tunable from ~100 to ~1,000 nm. The as-grown WS2 samples on Au foils were directly applied as electrocatalysts in the hydrogen evolution reaction.

    

Design of sandwich-structured ZnO/ZnS/Au photoanode for enhanced efficiency of photoelectrochemical water splitting

Yichong Liu1, Yousong Gu1, Xiaoqin Yan1, Zhuo Kang1, Shengnan Lu1, Yihui Sun1, and Yue Zhang1,2 (*)

1 State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
2 Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing 100083, China

DOI 10.1007/s12274-015-0794-y

Nano Research 2015, 8(9):2891每2900

Address correspondence to yuezhang@ustb.edu.cn

We developed a sandwich-structured photoelectrochemical water- splitting photoanode, with efficiency enhanced by the introduction of a ZnS interlayer and Au nanoparticles.

    

A new C=C embedded porphyrin sheet with superior oxygen reduction performance

Yawei Li1, Shunhong Zhang2, Jiabing Yu1, Qian Wang2, Qiang Sun1,2,3 (*), and Puru Jena3

1 Department of Materials Science and Engineering, Peking University, Beijing 100871, China
2 Center for Applied Physics and Technology, Peking University, Beijing 100871, China
3 Department of Physics, Virginia Commonwealth University, Richmond, VA 23284, USA

DOI 10.1007/s12274-015-0795-x

Nano Research 2015, 8(9):2901每2912

Address correspondence to sunqiang@pku.edu.cn

The porphyrin sheet with embedded C=C dimer exhibits superior oxygen reduction reaction (ORR) activity according to first-principles and microkinetics simulations.

    

Ultrastable single-atom gold catalysts with strong covalent metal-support interaction (CMSI)

Botao Qiao1,2,∫, Jin-Xia Liang3,4,∫, Aiqin Wang2, Cong-Qiao Xu3, Jun Li3 (*), Tao Zhang2 (*), and Jingyue (Jimmy) Liu1 (*)

1 Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
2 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
3 Department of Chemistry & Key Laboratory of Organic Optoelectronics and MolecularEngineering of the Ministry of Education, Tsinghua University, Beijing 100084, China
4 Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Normal College, Guiyang 550018, China
These authors contributed equally to this work.

DOI 10.1007/s12274-015-0796-9

Nano Research 2015, 8(9):2913每2924

Address correspondence to Jingyue Liu, Jingyue.Liu@asu.edu; Tao Zhang, taozhang@dicp.ac.cn; Jun Li, junli@mail.tsinghua.edu.cn

An FeOx-supported single-atom Au catalyst with a very low Au loading is not only highly active but also extremely stable for CO oxidation in a wide temperature range. The positively charged and surface-anchored Au1 atoms with high valent states form significant chemical bonds with the support, thus providing ultra-stability and remarkable catalytic performance.

    

Facet selective etching of Au microcrystallites

Gangaiah Mettela and Giridhar U. Kulkarni (*)

Thematic Unit of Excellence on Nanochemistry and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore 560 064, India

DOI 10.1007/s12274-015-0797-8

Nano Research 2015, 8(9):2925每2934

Address correspondence to kulkarni@jncasr.ac.in

The {100} and {111} facets of Au microcrystallites are selectively etched using a capping method. The specific etchants etch the facets that are free of capping agents and produce crystallites with well- defined corrugation involving high-index micro-facets. These facets exhibit enhanced Raman activity compared with smooth facets.

    

Achieving a high magnetization in sub-nanostructured magnetite films by spin-flipping of tetrahedral Fe3+ cations

Tun Seng Herng1,2, Wen Xiao1, Sock Mui Poh2,3, Feizhou He5, Ronny Sutarto5, Xiaojian Zhu6, Runwei Li6, Xinmao Yin2,3,4, Caozheng Diao2, Yang Yang1, Xuelian Huang1, Xiaojiang Yu2, Yuan Ping Feng4, Andrivo Rusydi2,3,4 (*), and Jun Ding1 (*)

1 Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 119260, Singapore
2 Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore 117603, Singapore
3 NUSNNI-Nanocore, Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore
4 Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore
5 Canadian Light Source, Saskatoon, Saskatchewan, S7N 2V3, Canada
6 Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Ningbo 315201, China

DOI 10.1007/s12274-015-0798-7

Nano Research 2015, 8(9):2935每2945

Address correspondence to Andrivo Rusydi, phyandri@nus.edu.sg; Jun Ding, msedingj@nus.edu.sg

The highly desirable high-magnetization sub-nanostructured Fe3O4 magnets are demonstrated and the physical origins of the high magnetization and chemical states are investigated extensively. The magnetization of 3O4 nano-magnets is tunable by the deterministic control of the grain size and nano-engineering. XAS and SXMCD reveal that the spin flipping of tetrahedral Fe3+ cations enhances the double-exchange interaction and suppresses the superexchange interaction, leading to giant magnetization.

    

Metallic and ferromagnetic MoS2 nanobelts with vertically aligned edges

Guanchen Xu1,2,∫, Xinsheng Wang1,∫, Yupeng Sun1, Xiao Chen2 (*), Jingying Zheng1, Lifei Sun1, Liying Jiao1 (*), and Jinghong Li1 (*)

1 Department of Chemistry, Tsinghua University, Beijing 100084, China
2 Key Laboratory of Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
These authors contributed equally to the work.

DOI 10.1007/s12274-015-0799-6

Nano Research 2015, 8(9):2946每2953

Address correspondence to Xiao Chen, xchen@sdu.edu.cn; Liying Jiao, lyjiao@mail.tsinghua.edu.cn; Jinghong Li, jhli@mail.tsinghua.edu.cn

An approach for synthesizing unique quasi-one-dimensional (1D) MoS2 nanobelts composed of vertically aligned nanoribbons is reported. The resulting MoS2 nanobelts are metallic and ferromag- netic, and are dramatically different from the semiconducting and nonmagnetic two-dimensional (2D) and three-dimensional (3D) 2H-MoS2 materials.

    

Prediction of large-gap quantum spin hall insulator and Rashba-Dresselhaus effect in two-dimensional g-TlA (A = N, P, As, and Sb) monolayer films

Xinru Li1, Ying Dai1 (*), Yandong Ma1, Wei Wei1, Lin Yu1, and Baibiao Huang2

1 School of Physics, Shandong University, Jinan 250100, China
2 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China

DOI 10.1007/s12274-015-0800-4

Nano Research 2015, 8(9):2954每2962

Address correspondence to daiy60@sina.com

A new family of large-gap QSH insulators is predicted. It is revealed that g-TlA monolayers can survive even at a temperature of 300 K. The topological edge states are described by introducing a sufficiently wide zigzag-nanoribbon.

    

Linear magnetoresistance versus weak antilocalization effects in Bi2Te3

Zhenhua Wang1 (*), Liang Yang1, Xiaotian Zhao1, Zhidong Zhang1, and Xuan P. A. Gao2 (*)

1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
2 Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, USA

DOI 10.1007/s12274-015-0801-3

Nano Research 2015, 8(9):2963每2969

Address correspondence to Zhenhua Wang, zhwang@imr.ac.cn; Xuan P. A. Gao, xuan.gao@case.edu

In thin films of the topological insulator Bi2Te3, the low-field magnetotransport behavior is explained by a combination of the classical linear magnetoresistance (LMR) and weak antilocalization (WAL) effects.

    

Strong tunability of cooperative energy transfer in Mn2+-doped (Yb3+, Er3+)/NaYF4 nanocrystals by coupling with silver nanorod array

Yalan Wang1, Fan Nan1, Ziqiang Cheng1, Junbo Han2, Zhonghua Hao1, Hongxing Xu3 (*), and Ququan Wang1 (*)

1 Department of Physics, Wuhan University, Wuhan 430072, China
2 Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
3 The Center for Nanoscience and Nanotechnology, the School of Physics and Technology & the Institute of Advanced Research, Wuhan University, Wuhan 430072, China

DOI 10.1007/s12274-015-0802-2

Nano Research 2015, 8(9):2970每2977

Address correspondence to Ququan Wang, qqwang@whu.edu.cn; Hongxing Xu, hxxu@iphy.ac.cn

The strong tunabilities of cooperative energy transfer and nonlinear upconversion emissions of (Yb3+, Er3+)/NaYF4 nanocrystals with and without doped Mn2+ ions by adopting a plasmonic nanocavity composed of a silver nanorod array are demonstrated.

    

Nanoparticle monolayer-based flexible strain gauge with ultrafast dynamic response for acoustic vibration detection

Lizhi Yi1, Weihong Jiao1, Ke Wu1, Lihua Qian1 (*), Xunxing Yu2, Qi Xia2, Kuanmin Mao2, Songliu Yuan1, Shuai Wang3 (*), and Yingtao Jiang4

1 School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
2 School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
3 School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
4 Nevada Nanotechnology Center & Department of Electrical and Computer Engineering, University of Nevada, Las Vegas, Nevada 89154-4026, USA

DOI 10.1007/s12274-015-0803-1

Nano Research 2015, 8(9):2978每2987

Address correspondence to Lihua Qian, lhqian@hust.edu.cn; Shuai Wang, chmsamuel@hust.edu.cn

A flexible strain gauge made of a Au nanoparticle monolayer enables ultrafast response to mechanical vibration with a frequency of 1每20,000 Hz. The device can detect musical tone, audible speech and creature vocalization, implying its potential application in miniaturized vibratory sensors, safe entrance management systems, and ultrasensitive pressure sensors.

    

Defect- and dopant-controlled carbon nanotubes fabricated by self-assembly of graphene nanoribbons

Cun Zhang and Shaohua Chen (*)

LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

DOI 10.1007/s12274-015-0804-0

Nano Research 2015, 8(9):2988每2997

Address correspondence to chenshaohua72@hotmail.com

A defective carbon nanotube is fabricated by self-assembly of a graphene nanoribbon with 1.0 at.% of arbitrarily distributed vacancy defects.

    

From graphite to porous graphene-like nanosheets for high rate lithium-ion batteries

Dongdong Zhao, Lei Wang, Peng Yu, Lu Zhao, Chungui Tian, Wei Zhou, Lei Zhang, and Honggang Fu (*)

Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People*s Republic of China, Heilongjiang University, Harbin 150080, China

DOI 10.1007/s12274-015-0805-z

Nano Research 2015, 8(9):2998每3010

Address correspondence to fuhg@vip.sina.com

A low-cost and effective route based on the simple and consecutive intercalation of H3PO4 and ZnCl2 into the interlayer of expandable graphite has been employed to synthesize two-dimensional (2D) porous graphene-like nanosheets (PGSs). The PGS material exhibits remarkable Li storage performance, capacity retention, rate capability, and cyclic lifetime when tested as an anode for lithium-ion batteries.

    

Morphological control of SnTe nanostructures by tuning catalyst composition

Yichao Zou1, Zhigang Chen1 (*), Jing Lin1, Xiaohao Zhou2, Wei Lu2, John Drennan3, and Jin Zou1,3 (*)

1 Materials Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
2 National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu-Tian Road, Shanghai 200083, China
3 Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, QLD 4072, Australia

DOI 10.1007/s12274-015-0806-y

Nano Nano Research 2015, 8(9):3011每3019

Address correspondence to Jin Zou, j.zou@uq.edu.au; Zhigang Chen, z.chen1@uq.edu.au

Morphologically uniform SnTe triangular nanoplates and nanowires have been fabricated by a catalyst composition-dependent CVD method. Through detailed structural and chemical characterization, coupled with surface energy calculations, the nanoplates were found to be kinetically grown by liquid catalysts. In contrast, the nanowires were thermodynamically induced by solid Au5Sn catalysts, being driven by the almost in-plane lattice coherence at the catalyst- nanowire interface.

    

Hole-doping of mechanically exfoliated graphene by confined hydration layers

Tjeerd R. J. Bollmann1,2 (*), Liubov Yu. Antipina3,4, Matthias Temmen2, Michael Reichling2, and Pavel B. Sorokin5

1 Inorganic Materials Science, MESA+ Institute for Nanotechnology, P. O. Box 217, 7500AE Enschede, The Netherlands
2 Fachbereich Physik, Universität Osnabr邦ck, Barbarastraße 7, Osnabr邦ck 49076, Germany
3 Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russian Federation
4 Siberian Federal University, Krasnoyarsk 660041, Russian Federation
5 National University of Science and Technology MISiS, Moscow 119049, Russian Federation

DOI 10.1007/s12274-015-0807-x

Nano Research 2015, 8(9): 3020每3026

Address correspondence to tbollman@uos.de

    

Biological imaging without autofluorescence in the second near-infrared region

Shuo Diao1,∫, Guosong Hong1,†,∫, Alexander L. Antaris1,∫, Jeffrey L. Blackburn2, Kai Cheng3, Zhen Cheng3, and Hongjie Dai1 (*)

1 Department of Chemistry, Stanford University, Stanford, California 94305, USA
2 Chemical and Materials Science Center, National Renewable Energy Laboratory, Colorado 80401, USA
3 Molecular Imaging Program at Stanford (MIPS) and Department of Radiology, Stanford University, California 94305, USA
Present address: Department of Chemistry and Chemical Biology, Harvard University, Massachusetts 02138, USA
These authors contributed to the work equally.

DOI 10.1007/s12274-015-0808-9

Nano Research 2015, 8(9):3027每3034

Address correspondence to hdai@stanford.edu

The long-wavelength NIR-IIb (1.5每1.7 米m) region exhibits almost no tissue autofluorescence, compared to the NIR-II (1.0每1.7 米m) and NIR-IIa (1.3每1.4 米m) regions, for various mouse organs under 808-nm excitation. This allows for single fluorophore imaging with improved detection sensitivity free of autofluorescence background interference.

    

Strain-induced spatially indirect exciton recombination in zinc-blende/wurtzite CdS heterostructures

Dehui Li1,†, Yang Liu1, Maria de la Mata2, Cesar Magen3, Jordi Arbiol2,4,5, Yuanping Feng6, and Qihua Xiong1,7 (*)

1 Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
2 Institut de Ciencia de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, 08193 Bellaterra, Catalonia, Spain
3 Laboratorio de Microscop赤as Avanzadas (LMA), Instituto de Nanociencia de Aragon (INA); ARAID and Departamento de Fisica de la Materia Condensada, Universidad de Zaragoza, 50018 Zaragoza, Spain
4 Institucio Catalana de Recerca i Estudis Avancats (ICREA), 08010 Barcelona, Catalonia, Spain
5 Institut Català de Nanociència i Nanotecnologia (ICN2), Campus UAB, 08193 Bellaterra, Catalonia, Spain
6 Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore
7 Division of Microelectronics, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
Present address: Department of Chemistry and Biochemistry, University of California, Los Angeles 90095, USA

DOI 10.1007/s12274-015-0809-8

Nano Research 2015, 8(9):3035每3044

Address correspondence to Qihua@ntu.edu.sg

Spatially indirect exciton recombination induced by applied strain was observed in zinc-blende/wurtzite CdS heterostructures; this phenomenon may be applicable in the field of laser cooling and in ultrasensitive strain sensors.

    

Dithiol treatments enhancing the efficiency of hybrid solar cells based on PTB7 and CdSe nanorods

Weining Luo1,2, Tonggang Jiu1 (*), Chaoyang Kuang1, Bairu Li1, Fushen Lu2 (*), and Junfeng Fang1 (*)

1 Institute of New Energy Technology, Ningbo Institute of Material Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, Zhejiang 315201, China
2 Department of Chemistry, College of Science, Shantou University, Shantou, Guangdong 515063, China

DOI 10.1007/s12274-015-0810-2

Nano Research 2015, 8(9):3045每3053

Address correspondence to Tonggang Jiu, jiutonggang@nimte.ac.cn; Fushen Lu, fslu@stu.edu.cn; Junfeng Fang, fangjf@nimte.ac.cn

A new system of hybrid devices based on the semiconducting polymer PTB7 and CdSe nanorods (NRs) was thoroughly studied in this work. The power conversion efficiency of this system can be significantly enhanced by engineering the PTB7/CdSe NR interface with ethanedithiol and 1,4-benzenedithiol treatments, reaching 2.58% and 2.79%, respectively; these efficiencies were preferable to that of a pyridine-treated device (1.75%).

    

Radial deformation of single-walled carbon nanotubes on quartz substrates and the resultant anomalous diameter-dependent reaction selectivity

Juan Yang, Yu Liu, Daqi Zhang, Xiao Wang, Ruoming Li, and Yan Li (*)

Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

DOI 10.1007/s12274-015-0811-1

Nano Research 2015, 8(9):3054每3065

Address correspondence to yanli@pku.edu.cn

Radially deformed single-walled carbon nanotubes on quartz substrates result in anomalous diameter-dependent reaction selectivity in treatment with iodine vapor.

    

Absorption mechanism of carbon-nanotube papertitanium dioxide as a multifunctional barrier material for lithium每sulfur batteries

Guiyin Xu1, Jiaren Yuan1, Xinyong Tao2, Bing Ding1, Hui Dou1, Xiaohong Yan1,3 (*), Yang Xiao1, and Xiaogang Zhang1 (*)

1 Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2 Department of Materials Science and Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, China
3 Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province, College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210046, China

DOI 10.1007/s12274-015-0812-0

Nano Research 2015, 8(9):3066每3074

Address correspondence to Xiaogang Zhang, azhangxg@163.com; Xiaohong Yan, xhyan@nuaa.edu.cn

High-performance lithium-sulfur batteries: a multifunctional carbon-nanotube paper/titanium-dioxide barrier has been designed to effectively reduce the loss of active materials and suppress the diffusion of lithium polysulfides to the anode, thereby improving the cycling stability of lithium-sulfur batteries.

    

The behaviors of ultra-low-gold-loaded catalysts (Au/ CeO2) for CO oxidation in the presence of water on the catalysts

Qiaoling Li1 (*), Wei Xie1, Guoqin Chen1, Yuefeng Li1, Yanjun Huang1, and Xiaodong Chen2 (*)

1 Technology Center of China Tobacco Fujian Industrial Co., Ltd, Xiamen 361022, China
2 Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 360015, China

DOI 10.1007/s12274-015-0813-z

Nano Research 2015, 8(9):3075每3084

Address correspondence to Q. L. Li, liql@fjtic.cn; X. D. Chen, xdc@xmu.edu.cn

1. Water possessed by the catalyst itself promotes O2 adsorption and activation. 2. Oact on the interface is the key factor to obtain excellent catalytic activity.

    

A new C=C embedded porphyrin sheet with superior oxygen reduction performance

Yawei Li1, Shunhong Zhang2, Jiabing Yu1, Qian Wang2, Qiang Sun1,2,3 (*), and Puru Jena3

1 Department of Materials Science and Engineering, Peking University, Beijing 100871, China
2 Center for Applied Physics and Technology, Peking University, Beijing 100871, China
3 Department of Physics, Virginia Commonwealth University, Richmond, VA 23284, USA

DOI 10.1007/s12274-015-0795-x

Nano Research 2015, 8(9): 2901每2912

Address correspondence to sunqiang@pku.edu.cn

The porphyrin sheet with embedded C=C dimer exhibits superior oxygen reduction reaction (ORR) activity according to first-principles and microkinetics simulations.

    

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