Shared posts

07 May 09:14

A Growth Mechanism for Free-Standing Vertical Graphene

by Jiong Zhao, Mehrdad Shaygan, Jürgen Eckert, M. Meyyappan and Mark H. Rümmeli

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Nano Letters
DOI: 10.1021/nl501039c
30 Apr 03:00

Controlled synthesis and decoupling of monolayer graphene on SiC(0001)

We describe a process for the growth of a single, electronically decoupled graphene layer on SiC(0001). The method involves annealing in disilane to (1) prepare flat, clean substrates, (2) grow a single graphene layer, and (3) electronically decouple the graphene from the substrate. This approach uses a single process gas, at μTorr pressures, with modest substrate temperatures, thus affecting a drastic simplification over other processes described in the literature.

21 Mar 01:06

Core-Double-Shell, Carbon Nanotube@Polypyrrole@MnO2 Sponge as Freestanding, Compressible Supercapacitor Electrode

by Peixu Li, Yanbing Yang, Enzheng Shi, Qicang Shen, Yuanyuan Shang, Shiting Wu, Jinquan Wei, Kunlin Wang, Hongwei Zhu, Quan Yuan, Anyuan Cao and Dehai Wu

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ACS Applied Materials & Interfaces
DOI: 10.1021/am500579c
11 Sep 09:10

Fluorescent Nanowire Heterostructures as a Versatile Tool for Biology Applications

by Karl Adolfsson, Henrik Persson, Jesper Wallentin, Stina Oredsson, Lars Samuelson, Jonas O. Tegenfeldt, Magnus T. Borgström and Christelle N. Prinz

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Nano Letters
DOI: 10.1021/nl4022754
11 Sep 09:05

Synthesis of Highly Stable Sub-8 nm TiO2 Nanoparticles and Their Multilayer Electrodes of TiO2/MWNT for Electrochemical Applications

by Md Nasim Hyder, Betar M. Gallant, Nisarg J. Shah, Yang Shao-Horn and Paula T. Hammond
Jinying Zhang

For JiangYiZhe

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Nano Letters
DOI: 10.1021/nl401387s
11 Sep 09:04

Tailoring Lithiation Behavior by Interface and Bandgap Engineering at the Nanoscale

by Yang Liu, Xiao Hua Liu, Binh-Minh Nguyen, Jinkyoung Yoo, John P. Sullivan, S. Tom Picraux, Jian Yu Huang and Shadi A. Dayeh
Jinying Zhang

for JiangYIZhe

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Nano Letters
DOI: 10.1021/nl4027549
09 Sep 02:06

A stable cathode for the aprotic Li–O2 battery

by Muhammed M. Ottakam Thotiyl
Jinying Zhang

For libei

Nature Materials. doi:10.1038/nmat3737

Authors: Muhammed M. Ottakam Thotiyl, Stefan A. Freunberger, Zhangquan Peng, Yuhui Chen, Zheng Liu & Peter G. Bruce

09 Sep 02:03

Supercapacitor Operating At 200 Degrees Celsius

by Raquel S. Borges

The operating temperatures of current electrochemical energy storage devices are limited due to electrolyte degradation and separator instability at higher temperatures. Here we demonstrate that a tailored mixture of materials can facilitate operation of supercapacitors at record temperatures, as high as 200°C. Composite electrolyte/separator structures made from naturally occurring clay and room temperature ionic liquids, with graphitic carbon electrodes, show stable supercapacitor performance at 200°C with good cyclic stability. Free standing films of such high temperature composite electrolyte systems can become versatile functional membranes in several high temperature energy conversion and storage applications.

Scientific Reports 3 doi: 10.1038/srep02572

28 Aug 02:41

Realization of pristine and locally tunable one-dimensional electron systems in carbon nanotubes

by J. Waissman

Nature Nanotechnology 8, 569 (2013). doi:10.1038/nnano.2013.143

Authors: J. Waissman, M. Honig, S. Pecker, A. Benyamini, A. Hamo & S. Ilani