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Repair and Stabilization in Confined Nanoscale Systems 〞 Inor- ganic Nanowires Within Single-Walled Carbon Nanotubes

Adelina Ilie1(), Simon Crampin1, Lisa Karlsson2, and Mark Wilson3


1 Department of Physics & Centre for Graphene Science, University of Bath, Bath, BA2 7AY, United Kingdom
2 Department of Materials, University of Oxford, Oxford, OX1 3PH, United Kingdom
3 Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, OX1 3QZ, United Kingdom

DOI 10.1007/s12274-012-0267-5

Nano Res. 2012, 5(12): 833-844

Address correspondence to a.ilie@bath.ac.uk

We show that inorganic systems can possess remarkable repair and reconfiguring capabilities under extreme confinement even while in solid state, by studying repair and reconfiguration phenomena in inorganic nanowires encapsulated within single-walled carbon nanotubes. Such processes involve atomic rearrangements in the nanowire to fit changes to their confining template, and are consistent with atomic migration at fractured, ionic ends of the nanowires encouraged by long-range force fields, as well as release-blocking mechanisms where nanowire atoms bind to nanotube walls to stabilize the ruptured nanotube and allow the nanowire to reform.

    

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.

    

Strain-Induced D Band Observed in Carbon Nanotubes

Chia-Chi Chang1, Chun-Chung Chen2, Wei-Hsuan Hung3, I-Kai Hsu4, Marcos A. Pimenta5, and Stephen B. Cronin1,2 ()


1 Department of Physics, 2 Department of Electrical Engineering, and 4 Department of Materials Science, University of Southern California, Los Angeles, CA 90089, USA
3 Department of Materials Science and Engineering, Feng Chia University
5 Departamento de F赤sica, Universidade Federal de Minas Gerais, Belo Horizonte, MG 30123-970, Brazil

DOI 10.1007/s12274-012-0269-3

Nano Res. 2012, 5(12): 854每862

Address correspondence to scronin@usc.edu

Reversible change in the D to G mode Raman intensity ratio (ID/IG) indicates that the emergence of the D band arises from the reversible and elastic symmetry-lowering of the sp2 bond structure, instead of defect formation.

    

Drastically Increased Absorption in Vertical Semiconductor Nanowire Arrays: A Non-Absorbing Dielectric Shell Makes the Difference

Nicklas Anttu1,∫ (), Kousar L. Namazi1,∫, Phillip M. Wu1,∫ (), Pengfei Yang2, Hongxing Xu1,2, H. Q. Xu1,3, and Ulf Håkanson1,2

1 Division of Solid State Physics/The Nanometer Structure Consortium at Lund University (nmC@LU), P.O. Box 118, S-221 00 Lund, Sweden
2 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603-146, Beijing 100190, China
3 Department of Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices, Peking University, Beijing 100871, China
N. A., K. N., and P. M. W. contributed equally to this work and are co-first authors

DOI 10.1007/s12274-012-0270-x

Nano Res. 2012, 5(12): 863每874

Address correspondence to Nicklas Anttu, nicklas.anttu@ftf.lth.se; Phillip M. Wu, phillipmwu@gmail.com

An appropriately designed dielectric shell boosts drastically the absorption of light in semiconductor nanowire arrays. This lightmanagement strategy has the potential of boosting the performance of nanowire arrays in optoelectronic applications.

    

Preparation, Characterization, and Application of Electrochemically Functional Graphene Nanocomposites by One-Step Liquid-Phase Exfoliation of Natural Flake Graphite with Methylene Blue

Dongdong Zhang1,3,4 (), Lei Fu2,3, Lei Liao3, Nan Liu3, Boya Dai3, and Chengxiao Zhang4 ()


1 School of Medicine, Xi*an Jiaotong University, Xi*an 710061, China
2 College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China
3 Center for Nanochemistry (CNC), Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
4 Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shanxi Normal University, Xi*an 710062, China

DOI 10.1007/s12274-012-0271-9

Nano Res. 2012, 5(12): 875每887

Address correspondence to D. D. Zhang, ddzhang@mail.xjtu.edu.cn; C. X. Zhang, cxzhang@snnu.edu.cn

A novel one-step aqueous liquid-phase exfoliation method for the preparation of electrochemically functional graphene nanocomposites using natural flake graphite and the polynuclear aromatic electroactive molecule methylene blue with the aid of sonication has been developed. The graphene每methylene blue nanocomposite prepared is exfoliated into single-layer or bilayer states, and sheet or ribbon shapes, and exhibits not only excellent electrochemical conductivity and activity and stability, but also excellent electrocatalytic activity toward hydrogen peroxide (H2O2) and 汕-nicotinamide adenine dinucleotide (NADH).

    

Nanowire-Composite based Flexible Thermoelectric Nanogenerators and Self-Powered Temperature Sensors

Ya Yang1,∫, Zong-Hong Lin1,∫, Techien Hou1, Fang Zhang1, and Zhong Lin Wang1,2 ()


1 School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
2 Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China
These authors contributed equally

DOI 10.1007/s12274-012-0272-8

Nano Res. 2012, 5(12): 888每895

Address correspondence to zlwang@gatech.edu

We have developed a flexible thermoelectric nanogenerator (TENG) that is based on a Te-nanowire/ poly(3-hexyl thiophene) (P3HT) polymer composite as the thermoelectric material with a positive Seebeck coefficient of 285 米V/K, which can be used as a wearable energy harvester by using human body temperature as the energy source, and can be used a self-powered temperature sensor with a response time of 17 s and a reset time of 9 s.

    

Fabrication of Patterned Boron Carbide Nanowires and Their Electrical, Field Emission, and Flexibility Properties

Yuan Huang1, Fei Liu2, Qiang Luo1, Yuan Tian1, Qiang Zou1, Chen Li1, Chengmin Shen1, Shaozhi Deng2, Changzhi Gu1, Ningsheng Xu2, and Hongjun Gao1 ()


1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2 State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, and School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China

DOI 10.1007/s12274-012-0273-7

Nano Res. 2012, 5(12): 896每902

Address correspondence to hjgao@ iphy.ac.cn

Large-area patterned boron carbide nanowires (B4C NWs) have been synthesized using chemical vapor deposition (CVD) and their electrical, field emission and flexibility properties systematically studied.

    

From Zero to Two Dimensions: Supramolecular Nanostructures Formed from Perylene-3,4,9,10-tetracarboxylic Diimide (PTCDI) and Ni on the Au(111) Surface Through the Interplay Between Hydrogen-Bonding and Electrostatic Metal每Organic Interactions

Miao Yu1,4, Wei Xu1, Nataliya Kalashnyk1, Youness Benjalal2,3, Samuthira Nagarajan2, Federico Masini1, Erik Lægsgaard1, Mohamed Hliwa2,3, Xavier Bouju2, Andr谷 Gourdon2, Christian Joachim2, Flemming Besenbacher1 (), and Trolle R. Linderoth1 ()


1 Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, Aarhus 8000, Denmark
2 Nanosciences group, CEMES-CNRS, Toulouse 31055, France
3 Facult谷 des Sciences Ben M*Sik, Universit谷 Hassan II-Mohamm谷dia, Casablanca BP 7955, Morocco
4 School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China

DOI 10.1007/s12274-012-0274-6

Nano Res. 2012, 5(12): 903每916

Address correspondence to Trolle R. Linderoth, trolle@inano.au.dk; Flemming Besenbacher, fbe@inano.au.dk

By tuning the co-adsorption conditions of perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) molecules and Ni atoms, three distinct self-assembled nanostructures from zero-dimensional nanodots over one-dimensional chains to a two-dimensional porous network have been synthesized on the inert Au(111) surface, and investigated using high-resolution scanning tunneling microscopy combined with molecular mechanics and quantum chemical calculations, revealing that the Ni adatoms acquire a negative partial charge through interaction with the substrate and the Ni每PTCDI interaction is entirely electrostatic.

    

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