نتایج جستجو برای: redox cyclability

تعداد نتایج: 39672  

Due to some important applications of guanine electrode in scientific and technology research such as electro-chemical DNA based biosensors, and a problem of high redox potential of guanine (0.81 V), our research study concentrates on reducing guanine redox potential by substituting Cu, Ag, Au, CH3, C2H5 and Cl on sites of 1, 2 and 9 of guanine. A 5.0% reduction...

2010
Yongcai Qiu Shihe Yang Hong Deng Limin Jin Weishan Li

In this paper, we report a successful synthesis of porous ZnCo2O4 nanoflakes by a morphologyconserved and pyrolysis-induced transformation of novel hexagonally shaped, highly ordered, and inorganic–organic–inorganic layered hybrid nanodisks. It is shown that the hexagonal hybrid nanodisks are constructed from organic molecule (ethylene glycol)-directed assembly of inorganic bilayers. The assemb...

Journal: :ACS nano 2009
Sung-Wook Kim Tae Hee Han Jongsoon Kim Hyeokjo Gwon Hyoung-Seok Moon Sang-Won Kang Sang Ouk Kim Kisuk Kang

The three-dimensional network of TiO(2) hollow nanoribbons designed from a peptide assembly using atomic layer deposition is demonstrated as a promising Li secondary battery electrode in this study. The nanoribbon network ensures effective transport of electrons and Li ions due to (i) a well-connected network of nanoribbons and (ii) the hollow structure of each nanoribbon itself, into which Li ...

2012
Dawei Su Mike Ford Guoxiu Wang

Faceted crystals with exposed highly reactive planes have attracted intensive investigations for applications such as hydrogen production, enhanced catalytic activity, and electrochemical energy storage and conversion. Herein, we report the synthesis of mesoporous NiO crystals with dominantly exposed {110} reactive facets by the thermal conversion of hexagonal Ni(OH)(2) nanoplatelets. When appl...

2014
Yanming Wang Yajing Wang Fei Wang

Well-crystallized Li2NiTiO4 nanoparticles are rapidly synthesized by a molten salt method using a mixture of NaCl and KCl salts. X-ray diffraction pattern and scanning electron microscopic image show that Li2NiTiO4 has a cubic rock salt structure with an average particle size of ca. 50 nm. Conductive carbon-coated Li2NiTiO4 is obtained by a facile ball milling method. As a novel 4 V positive ca...

Journal: :Nano letters 2010
Daiwon Choi Donghai Wang In-Tae Bae Jie Xiao Zimin Nie Wei Wang Vilayanur V Viswanathan Yun Jung Lee Ji-Guang Zhang Gordon L Graff Zhenguo Yang Jun Liu

Electrochemically active LiMnPO(4) nanoplates have been synthesized via a novel, single-step, solid-state reaction in molten hydrocarbon. The olivine-structured LiMnPO(4) nanoplates with a thickness of approximately 50 nm appear porous and were formed as nanocrystals were assembled and grew into nanorods along the [010] direction in the (100) plane. After carbon coating, the prepared LiMnPO(4) ...

Journal: :Nanoscale 2015
Yong Yang Jingchao Zhang Shitong Wang Xiaobin Xu Zhicheng Zhang Pengpeng Wang Zilong Tang Xun Wang

A simple strategy toward versatile encapsulations of inorganic nanocrystals, through a green hydrothermal treatment of commercial polyurethane sponge, was developed. This approach enables us to realize a general method to form a surface-adherent, N-doped coating with a controllable thickness for well-defined structures. These composites exhibit active properties in optical applications and ener...

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