Pei Zhao1, Erik Einarsson1,2, Georgia Lagoudas3, Junichiro Shiomi1, Shohei Chiashi1, and Shigeo Maruyama1 ()
1 Department of Mechanical Engineering, The University of Tokyo, Tokyo 113-8656, Japan
2 Global Center of Excellence for Mechanical Systems Innovation, The University of Tokyo, Tokyo 113-8656, Japan
3 Department of Bioengineering, Rice University, Houston, TX 77005, USA
Nano Res. 2011, 4(7): 623每634
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We have systematically investigated various parameters involved in the separation of single-walled carbon nanotubes by density gradient ultracentrifugation, and based on our experimental findings demonstrate how these parameters affect the outcome.
Nano Res. 2011, 4(7): 635每647
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Thermostable nitrogen-doped HTiNbO5 nanosheets have been synthesized and employed as a novel efficient photocatalyst for the degradation of organic dyes under visible light irradiation.
Chengzhou Zhu, Shaojun Guo, Youxing Fang, Lei Han, Erkang Wang, and Shaojun Dong ()
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Nano Res. 2011, 4(7): 648每657
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We have demonstrated a one-step and effective electrochemical method to synthesize graphene/MnO2 nanowall hybrids (GMHs) via cathodic electrochemical deposition. This simple approach should find practical application in the large-scale production of GMHs.
Nano Res. 2011, 4(7): 658每665
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NiO nanorod arrays on Ni foam combine ultrahigh specific capacitance (2018 F/g at 2.27 A/g), high power density (1536 F/g at 22.7 A/g), and good cycling stability (92% retention over 500 cycles), which improves the reversible capacitance record for NiO by 50% or more, reached 80% of the theoretical value, and demonstrated that a three-dimensional regular porous array structure can afford all of these virtues in a supercapacitor.
Tiago Luis da Silva and Laudemir Carlos Varanda ()
Colloidal Materials Group, Instituto de Qu赤mica de São Carlos, Universidade de São Paulo〞USP, São Carlos, PO Box 780, 13566-590, Brazil
Nano Res. 2011, 4(7): 666每674
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The synthesis and self-assembly of tetragonal phase L10-Fe55Pt45 nanorods with high coercive field is described. Monodisperse nanorods with lengths of 60 ㊣ 5 nm and diameters of 2每3 nm were self-assembled in a perpendicular oriented array onto a substrate surface using hexadecylamine as organic spacer. The self-assembled materials are a strong candidate to solve the problem of random magnetic alignment observed in FePt nanospheres leading to applications in ultrahigh magnetic recording (UHMR) systems capable of achieving a performance of the order of terabits/in2.
Nano Res. 2011, 4(7): 675每684
Address correspondence to Yongsheng Chen, email@example.com; Yi Huang, firstname.lastname@example.org
Graphene inks have been used to prepare various patterns on different flexible substrates such as commercial paper, poly(ethylene terephthalate) and polyimide with high resolution. These patterns can be used to fabricate flexible electrical circuits and sensors.
Mingliang Deng, Yingxin Ma, Sheng Huang, Gaofei Hu, and Leyu Wang ()
State Key Laboratory of Chemical Resource Engineering, Chemistry Department, School of Science, Beijing University of Chemical Technology, Beijing 100029, China
Nano Res. 2011, 4(7): 685每694
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Monodisperse multicolor upconverting 汕-phase NaYF4 nanocrystals have been successfully prepared via a newly developed method and applied in upconversion fluorescence imaging of cancer cells.
Nano Res. 2011, 4(7): 695每704
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Morphologies and structures of Co3O4 have been well controlled from nanorods, nanobelts, to nanosheets with sizes ranging from nanometers to micrometers. The as-synthesized samples exhibit excellent performance when employed in supercapacitors, giving higher capacitance and better rate capability than conventional Co3O4 with nanocubic/nanooctahedral morphology.
Jian Zheng1,2, Hongtao Liu1,2, Bin Wu1, Yunlong Guo1, Ti Wu1,2, Gui Yu1, Yunqi Liu1 (), and Daoben Zhu1
1 Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2 Graduate University of Chinese Academy of Sciences, Beijing 100039, China
Nano Res. 2011, 4(7): 705每711
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We report a simple method to produce graphene nanospheres by annealing graphene oxide solution at high temperature with the assistance of sparks induced by the absorption of microwaves by graphite flakes added to the solution.
Nano Res. 2011, 4(7): 712每721
Address correspondence to Yanfeng Zhang, email@example.com; Zhongfan Liu, firstname.lastname@example.org
Atomic-scale structures of graphene segregated on Ni films prior to chemical transfer〞including carbon lattices, Moir谷 patterns due to non-AB stacking, as well as wrinkles and ripples caused by strain effects〞have been characterized by high-resolution scanning tunneling microscopy (STM). The non-AB stacking characteristics of bilayer graphene were quantitatively established by measuring the Moir谷 periods and the relative rotation angles in the two carbon layers.