文献类型：期刊文献

英文题名：Synthesis and electrochemical performance of bismuth tungsten oxides with different composition and morphology

作者：Liang, Ying[1];Shi, Jiawei[1];Fang, Bin[1]

机构：[1]East China Univ Sci & Technol, Sch Sci, Inst Nucl Technol & Applicat, Shanghai 200237, Peoples R China

年份：2019

卷号：716

起止页码：112

外文期刊名：CHEMICAL PHYSICS LETTERS

收录：;EI(收录号：20185206316686);WOS:【SCI-EXPANDED(收录号:WOS:000456799900017)】；

基金：This research was supported by the National Natural Science Foundation of China (No. 51301071).

语种：英文

外文关键词：Bi2WO6; Bi3.84W0.16O6.24; Bi2W2O9; Bi2WO6/WO3(H2O)(0.33) composite; Electrochemical performance

摘要：A series of bismuth tungsten oxides, Bi2WO6, Bi3.84W0.16O6.24, Bi2WO6/WO3(H2O)(0.33) and Bi2W2O9 have been synthesized with different morphologies. Their electrochemical performance as Li-ion battery anodes has been found to be strongly dependent on the composition and morphology. Among the obtained materials, Bi2WO6/WO3(H2O)(0.33) exhibits the highest capacity and best cycling stability with a reversible discharge capacity of 391 mAh g(-1) the end of 100 cycles at 50 mA g(-1). Bi2WO6 nanosheets possess more stable cycling performance than Bi3.84W0.16O6.24 nanoparticles and Bi2W2O9 block. For Bi2WO6 nanosheets, the thinner the sheets, the better the electrochemical cyclic stability.