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Composite of sulfur impregnated in porous hollow carbon spheres as the cathode of Li每S batteries with high performance

Kai Zhang, Qing Zhao, Zhanliang Tao, and Jun Chen (*)


Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Chemistry College, Nankai University, Tianjin 300071, China

DOI 10.1007/s12274-012-0279-1

Nano Research 2013, 6(1): 38每46

Address correspondence to chenabc@nankai.edu.cn

Porous carbon每sulfur composites with a hierarchical porous structure have potential applications as the cathode in Li每S batteries because of their good electronic conductivity, minimal volume expansion, and low shuttling loss.

    

Vibrational properties of silicene and germanene

Emilio Scalise1 (*), Michel Houssa1, Geoffrey Pourtois2,3, B. van den Broek1, Valery Afanas*ev1, and Andr谷 Stesmans1


1 Semiconductor Physics Laboratory, Department of Physics and Astronomy, University of Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium
2 IMEC, 75 Kapeldreef, B-3001 Leuven, Belgium
3 Department of Chemistry, PLASMANT research group, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk-Antwerp, Belgium

10.1007/s12274-012-0277-3

Nano Research 2013, 6(1): 19每28

Address correspondence to Emilio.Scalise@fys.kuleuven.be

The vibrational properties of silicene and germanene have been studied, particularly focusing on the Raman active vibrational modes. The calculated vibrational modes are highly desirable to link the experimental Raman lines with the crystal structure of germanene and silicene.

    

Ni/Pd Core/Shell Nanoparticles Supported on Graphene as a Highly Active and Reusable Catalyst for Suzuki每Miyaura Cross-Coupling Reaction

Önder Metin1,2 (*), Sally Fae Ho1, Cemalettin Alp2,4, Hasan Can2, Max N. Mankin1, Mehmet Serdar G邦ltekin2, Miaofang Chi3, and Shouheng Sun1 (*)


1 Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
2 Department of Chemistry, Faculty of Science, Atat邦rk University 25240, Erzurum, Turkey
3 Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
4 Çayırlı Vocational School, Erzincan University, Erzincan, Turkey

DOI 10.1007/s12274-012-0276-4

Nano Research 2013, 6(1): 10每18

Address correspondence to Shouheng Sun, ssun@brown.edu; Önder Metin, ometin@atauni.edu.tr

Monodisperse 10 nm Ni/Pd core/shell nanoparticles with composition control have been synthesized by sequential reduction of nickel(II) acetate and palladium(II) bromide in oleylamine and trioctylphosphine. The as-synthesized Ni/Pd core/shell NPs were supported on graphene and showed high activity, stability and reusability for Suzuki每Miyaura cross-coupling of various aryl halides and phenylboronic acids.

    

Branched Co3O4/Fe2O3 nanowires as high capacity lithium-ion battery anodes

Hao Wu, Ming Xu, Yongcheng Wang, and Gengfeng Zheng (*)


Laboratory of Advanced Materials, Department of Chemistry, Fudan University, Shanghai 200433, China

DOI 10.1007/s12274-013-0292-z

Nano Research 2013, 6(3): 167每173

Address correspondence to gfzheng@fudan.edu.cn

A novel Co3O4/汐-Fe2O3 branched nanowire heterostructure has been hydrothermally grown on Ti substrates, and can serve as lithiumion battery anodes with high Li+ storage capacity and stability.

    

One-step strategy to graphene/Ni(OH)2 composite hydrogels as advanced three-dimensional supercapacitor electrode materials

Yuxi Xu1, Xiaoqing Huang2, Zhaoyang Lin1, Xing Zhong1, Yu Huang2,3, and Xiangfeng Duan1,3 (*)


1 Department of Chemistry and Biochemistry, University of California, 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

DOI 10.1007/s12274-012-0284-4

Nano Research 2013, 6(1): 65每76

Address correspondence to xduan@chem.ucla.edu

A one-step strategy has been developed to fabricate mechanically strong and electrically conductive graphene/Ni(OH)2 composite hydrogels with excellent supercapacitive performance.

    

Mesoporous Co3O4 as an electrocatalyst for water oxidation

Harun T邦ys邦z1,†, Yun Jeong Hwang1,‡, Sher Bahader Khan2, Abdullah Mohamed Asiri2, and Peidong Yang1,2 (*)


1 Department of Chemistry, University of California, Berkeley, California 94720, USA
2 The Center of Excellence for Advanced Materials Research (CEAMR ), Chemistry Department, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Present address: Max-Planck Institut f邦r Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 M邦lheim an der Ruhr, Germany
Present address: Clean Energy Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Republic of Korea

DOI 10.1007/s12274-012-0280-8

Nano Research 2013, 6(1): 47每54

Address correspondence to p_yang@uclink.berkeley.edu

Mesoporous Co3O4 has been prepared using porous silica as a hard template via a nanocasting route and its electrocatalytic properties investigated as an oxygen evolution catalyst for the electrolysis of water. The ordered mesostructured Co3O4 shows dramatically increased catalytic activity compared to that of bulk Co3O4.

    

Spin-Coated Silicon Nanoparticle/Graphene Electrode as a Binder-Free Anode for High-Performance Lithium-Ion Batteries

Xiaosi Zhou, An-Min Cao, Li-Jun Wan, and Yu-Guo Guo (*)


Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China

DOI 10.1007/s12274-012-0268-4

Nano Res. 2012, 5(12): 845每853

Address correspondence to ygguo@iccas.ac.cn

A binder-free silicon nanoparticle/graphene electrode has been successfully prepared via a facile solution-based procedure, the spincoating technique, by using a stable suspension of Si nanoparticles and graphene oxide in ethanol. By virtue of its unique nanostructure, the as-obtained electrode exhibits a high capacity, a superior rate capability, and an excellent cycle life.

    

Hierarchical Co3O4@Ni每Co每O Supercapacitor Electrodes with Ultrahigh Specific Capacitance per Area

Zhiyi Lu, Qiu Yang, Wei Zhu, Zheng Chang, Junfeng Liu, Xiaoming Sun (*), David G. Evans, and Xue Duan


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

DOI 10.1007/s12274-012-0217-2

Nano Res. 2012, 5(5): 369每378

Address correspondence to sunxm@mail.buct.edu.cn

Ternary ordered hierarchical Co3O4@Ni每Co每O nanosheet每nanorod arrays show excellent electrochemical performance as a supercapacitor electrode. At a current density of 5 mA/cm2, the electrodes have both high mass loading per area (12 mg/cm2) and high efficiency of 2098 F/g, giving specific capacitances per area as high as ~25 F/cm2.

    

Graphene每Nickel Cobaltite Nanocomposite Asymmetrical Supercapacitor with Commercial Level Mass Loading

Huanlei Wang1,2, Chris M. B. Holt1,2, Zhi Li1,2 (*), Xuehai Tan1,2, Babak Shalchi Amirkhiz1,2, Zhanwei Xu1,2, Brian C. Olsen1,2, Tyler Stephenson1,2, and David Mitlin1,2 (*)


1 Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2V4, Canada
2 National Institute for Nanotechnology (NINT), National Research Council of Canada, Edmonton, Alberta T6G 2M9, Canada

DOI 10.1007/s12274-012-0246-X

Nano Res. 2012, 5(9): 605每617

Address correspondence to David Mitlin, dmitlin@ualberta.ca; Zhi Li, lizhicn@gmail.com

A high performance asymmetric electrochemical supercapacitor with a mass loading of 10 mg﹞cm每2 on each planar electrode has been fabricated by using a graphene每nickel cobaltite nanocomposite as a positive electrode and commercial activated carbon as a negative electrode. The capacitor exhibits favorable energy and power densities, and 102% capacitance retention at over 10000 cycles.

    

A Functionalized Graphene Oxide每Iron Oxide Nanocomposite for Magnetically Targeted Drug Delivery, Photothermal Therapy, and Magnetic Resonance Imaging

Xinxing Ma1,2,†, Huiquan Tao2,†, Kai Yang2, Liangzhu Feng2, Liang Cheng2, Xiaoze Shi2, Yonggang Li1 (*), Liang Guo1 (*), and Zhuang Liu2 (*)


1 Department of Radiology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
2 Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China

DOI 10.1007/s12274-012-0200-y

Nano Res. 2012, 5(3): 199每212

Address correspondence to Zhuang Liu, zliu@suda.edu.cn; Liang Guo, ilguoliang@sohu.com; Yonggang Li, liyonggang224@163.com

A multi-functional graphene oxide每iron oxide hybrid nanocomposite (GO每IONP) has been synthesized and then functionalized by a biocompatible polymer, polyethylene glycol (PEG). The resulting GO每IONP每PEG is biocompatible and can be utilized for magnetically targeted drug delivery, photothermal therapy, and in vivo magnetic resonance imaging of tumor-bearing mice.

    

Strain-Induced Semiconductor to Metal Transition in the Two-Dimensional Honeycomb Structure of MoS2

Emilio Scalise1 (*),Michel Houssa1, Geoffrey Pourtois2,†, Valery Afanas*ev1, and Andr谷 Stesmans1
 
1 Semiconductor Physics Laboratory, Department of Physics and Astronomy, University of Leuven, Leuven B-3001, Belgium
2 Department of Chemistry, University of Antwerp, Wilrijk-Antwerp B-2610, Belgium
 Present address: IMEC, Leuven B-3001, Belgium

DOI 10.1007/s12274-011-0183-0

Nano Res. 2012, 5(1): 43每48

Address correspondence to Emilio.Scalise@fys.kuleuven.be

Strain represents a very interesting possibility for engineering the electronic properties of two dimensional materials. We investigate the effects of biaxial strain on the electronic properties of mono- and bi-layer MoS2.

    

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