نتایج جستجو برای: sno2

تعداد نتایج: 2921  

2017
Min Hu Zhenwei Zhang Chenkun Luo Xiuqing Qiao

In this paper, hierarchical Ag-decorated SnO2 microspheres were synthesized by a facile one-pot hydrothermal method. The resulting composites were characterized by XRD, SEM, TEM, XPS, BET, and FTIR analysis. The catalytic performances of the samples were evaluated with the reduction of 4-nitrophenol to 4-aminophenol by potassium borohydride (KBH4) as a model reaction. Time-dependent experiments...

2014
T. Tharsika A. S. M. A. Haseeb Sheikh A. Akbar Mohd Faizul Mohd Sabri Wong Yew Hoong

An inexpensive single-step carbon-assisted thermal evaporation method for the growth of SnO2-core/ZnO-shell nanostructures is described, and the ethanol sensing properties are presented. The structure and phases of the grown nanostructures are investigated by field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) techniques. XRD a...

2012
Ruiqing Liu Ning Li Guofeng Xia Deyu Li Chen Wang Ning Xiao Dong Tian Gang Wu

SnO2 microspheres with controllable morphology were prepared via a hydrothermal-annealing method. The SnO2 morphology can be tuned by using AlOOH sol and g-Al2O3 as additive. The hollow SnO2 microspheres with incomplete core-shell structure prepared with small amount of g-Al2O3 presented the best cycling performance in Li-ion battery, exhibiting a specific capacity of 374.2 mAh g 1 up to 100 cy...

2013
HASSAN M. TAMOUS

High oxygen evolution overpotential and inexpensive Ti/Co3O4/PbO2/(SnO2+Sb2O3) and (Ti/(SnO2+Sb2O3) electrodes were investigated in this work. These electrodes were prepared and used as anodes for removal of Reactive Black 5 (RB5) dye in aqueous solution. In some local cases in Palestine, wastewater color was found to be the only problem in meeting local effluent standards. This investigation r...

Journal: :Chemical communications 2014
Xunfu Zhou Yingju Liu Xin Li Qiongzhi Gao Xiaotang Liu Yueping Fang

Novel SnO2/SiC hollow sphere nanochains were synthesized by topological morphology conversion of SnO2@C core-shell nanochains through a vapour-solid reaction. Evaluation of the SnO2/SiC HSNCs for the generation of hydrogen revealed that they exhibit excellent catalytic activity and durability.

2008
O. Lupan L. Chow G. Chai H. Heinrich S. Park A. Schulte

We have developed a simple solution process to synthesize tin oxide nanorods. The influence of precursors and the reaction temperature on the morphology of SnO2 is investigated. SnO2 nanorods are characterized by X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Raman spectroscopy. The as-grown SnO2 nanorods are uniform in size with a radius of 5...

2011
Shujie Wang Gang Cheng Ke Cheng Xiaohong Jiang Zuliang Du

A single SnO2 nanobelt was assembled on a pair of Au electrodes by electric-field assembly method. The electronic transport property of single SnO2 nanobelt was studied by conductive atomic force microscopy (C-AFM). Back-to-back Schottky barrier-type junctions were created between AFM tip/SnO2 nanobelt/Au electrode which can be concluded from the I-V curve. The current images of single SnO2 nan...

2015
Ye Wang Zhi Xiang Huang Yumeng Shi Jen It Wong Meng Ding Hui Ying Yang

Transition metal cobalt (Co) nanoparticle was designed as catalyst to promote the conversion reaction of Sn to SnO2 during the delithiation process which is deemed as an irreversible reaction. The designed nanocomposite, named as SnO2/Co3O4/reduced-graphene-oxide (rGO), was synthesized by a simple two-step method composed of hydrothermal (1(st) step) and solvothermal (2(nd) step) synthesis proc...

Journal: :Journal of nanoscience and nanotechnology 2012
Chuanqi Feng Meiyu Dan Chaofeng Zhang Zaiping Guo Shiquan Wang R Zeng

A Sn-SnO2/C nanocomposite was synthesized using the electrospinning method. Thermal analysis was used to determine the content range of Sn and SnO2 in the composite. The composite was characterized by X-ray diffraction, and the particle size and shape in the Sn-SnO2/C composite were determined by scanning and transmission electron microscopy. The results show that the Sn-SnO2/C composite takes ...

2004
J. X. Wang D. F. Liu X. Q. Yan H. J. Yuan L. J. Ci Z. P. Zhou Y. Gao L. Song L. F. Liu W. Y. Zhou G. Wang S. S. Xie

SnO2 nanowires have been prepared using the active carbon reaction with the fine SnO2 powder at low temperature (700 8C). These nanowires show rectangular cross-section, with their widths ranging from 10 to 50 nm. Branched nanowires with definite included angle are also observed in these products. The morphology and microstructure of the single crystalline SnO2 nanowires and the branched nanowi...

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