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Single-Molecule Kinetics of Nanoparticle Catalysis

Weilin Xu, Hao Shen, Guokun Liu, and Peng Chen

Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA

Present address: Department of Chemical Engineering, University of California, Berkeley, CA 94720, USA

DOI 10.1007/s12274-009-9100-1

Nano Res (2009)2:911-922

Address correspondence to pc252@cornell.edu

The single-molecule fluorescence approach to nanoparticle catalysis and the single-molecule kinetic formalism for quantitative analysis of reaction kinetics are reviewed.

    

Hydrothermal Synthesis of Orthorhombic LiMnO2 Nano-Particles and LiMnO2 Nanorods and Comparison of their Electrochemical Performances

Xiaoling Xiao1, Li Wang2, Dingsheng Wang1, Xiangming He2, Qing Peng1, and Yadong Li1,3

1 Department of Chemistry, Tsinghua University, Beijing 100084, China

2 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

3 State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China

DOI 10.1007/s12274-009-9094-8

Nano Res (2009)2:923-930

Address correspondence to ydli@mail.tsinghua.edu.cn

Orthorhombic LiMnO2 nanoparticles and LiMnO2 nanorods have been synthesized by hydrothermal methods. Galvanostatic tests indicated that LiMnO2 nanorods exhibited higher discharge capacity and better cyclability than LiMnO2 nanoparticles. The excellent electrochemical performance of LiMnO2 nanorods results from their one-dimensional nanostructure, which helps to transport electrons along the length direction and accommodate volume changes resulting from the charge/discharge processes. We conclude that the morphology of LiMnO2 can play an important role in electrochemical performance.

    

Synthesis and Ex Situ Doping of ZnTe and ZnSe Nanostructures with Extreme Aspect Ratios

Joanne W. L. Yim1,2, Deirdre Chen1, Gregory F. Brown1,2, and Junqiao Wu1,2

1 Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA

2 Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

DOI 10.1007/s12274-009-9095-7

Nano Res (2009)2:931-937

Address correspondence to wuj@berkeley.edu

High aspect ratio nanoribbons and nanowires of ZnTe and ZnSe with mm lengths are synthesized by vapor transport. Using increasing Cu-ion immersion for ex situ doping, the ZnTe nanoribbons are made p-type to increasing degrees, while the ZnSe nanowires begin to exhibit ionic conduction.

    

Nanopumping Molecules via a Carbon Nanotube

Min Chen1,2,3, Ji Zang3, Dingquan Xiao1, C. Zhang4, and Feng Liu3

1 Department of Materials Science and Engineering, Sichuan University, Chengdu, Sichuan 610064, China

2 Department of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China

3 Department of Materials Science and Engineering, University of Utah, Salt Lake City, Utah 84112, USA

4 School of Engineering Physics, University of Wollongong, New South Wales 2522, Australia

DOI 10.1007/s12274-009-9096-6

Nano Res (2009)2:938-944

Address correspondence to fliu@eng.utah.edu

Molecular dynamics simulations demonstrating a nanopumping process driving and ejecting a C20 molecule via (13, 0) single-walled carbon nanotube.

    

Molecular Dynamics Study of Dipalmitoylphosphatidylcholine Lipid Layer Self-Assembly onto a Single-Walled Carbon Nanotube

Hongming Wang, Servaas Michielssens, Samuel L. C. Moors, and Arnout

Ceulemans

Laboratory of Quantum Chemistry, Department of Chemistry and INPAC Institute for Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Belgium

DOI 10.1007/s12274-009-9097-5

Nano Res (2009)2:945-954

Address correspondence to Arnout.Ceulemans@chem.kuleuven.be

Dipalmitoylphosphatidylcholine molecules are found to form a supramolecular multi-layered structure wrapped around a carbon nanotube surface. At the saturation point, a membrane-like structure is self-assembled with a width of 41.4 Å, which is slightly larger than the width of a cell membrane.

    

Enhanced Antibacterial Activity of Bifunctional Fe3O4每Ag Core每Shell Nanostructures

Bhupendra Chudasama 1, Anjana K. Vala2, Nidhi Andhariya2, R. V. Upadhyay3, and R. V. Mehta2

1 Department of Applied Physics, S.V. National Institute of Technology, Surat 395007, India

2 Department of Physics, Bhavnagar University, Bhavnagar 364022, India

3 P.D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Education campus, Changa 388421, India

DOI 10.1007/s12274-009-9098-4

Nano Res (2009)2:955-965

Address correspondence to Bhupendra Chudasama, bnc_ta@ashd. svnit.ac.in; R. V. Mehta, rvm@bhavuni.edu

Surface plasmon resonance from Fe3O4每Ag core每shell nanostructures (A) before and after (B) phase transfer. The facile phase transfer does not alter the fundamental properties of the core每shell nanostructures.

    

Zigzag Zinc Blende ZnS Nanowires: Large Scale Synthesis and Their Structure Evolution Induced by Electron Irradiation

Daesoo Kim, Paresh Shimpi, and Pu-Xian Gao

Department of Chemical, Materials and Biomolecular Engineering & Institute of Material Science, University of Connecticut, Storrs, CT 06269-3136, USA

DOI 10.1007/s12274-009-9099-3

Nano Res (2009)2:966-974

Address correspondence to puxian.gao@ims.uconn.edu

Electron beam irradiation under high vacuum induces surface oxidation and displacement damage in zigzag zinc blende ZnS nanowires, resulting in conversion into ZnS ZnO nanocables and nanoparticle networks.

    

Interfacial Activation of Catalytically Inert Au (6.7 nm)每Fe3O4 Dumbbell Nanoparticles for CO Oxidation

Binghui Wu, Hai Zhang, Cheng Chen, Shuichao Lin, and Nanfeng Zheng

State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China

DOI 10.1007/s12274-009-9102-z

Nano Res (2009)2:975-983

Address correspondence to nfzheng@xmu.edu.cn

Using Au (6.7 nm)每Fe3O4 dumbbell nanoparticles as the precursors to prepare TiO2-supported Au nanocatalysts allows the unambiguous identifi cation of the importance of the Au每TiO2 interface in CO oxidation.

    

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