HxMoO3@C green synthesis and superior lithium storage properties
作者：王海
關(guān)鍵字：Lithium-ion batteries， Hydrogen molybdenum bronzes， Nanobelts， Anode material
論文來源：期刊
具體來源：International Journal of Hydrogen Energy
發(fā)表時間：2015年
MoO3 could be a promising high capacity anode material for lithium ion batteries (LIBs). However, its applications have been hindered by its poor electronic conductivity. To address these issues, in this work, HxMoO3@C nanobelts were synthesized by mild hydrothermal treatment of precursor MoO3 nanobelts only with the assistance of glucose and ethanol. Subsequently, a catalysis-insertion model was proposed to describe the formation of HxMoO3 nanobelts. When tested as LIBs anodes, the superior reversible capacities of LIBs anodes were realized from HxMoO3@C nanobelts. The HxMoO3@C nanobelts electrode exhibited superior reversible capacity of 480 mAh g?1 retained at 200 mA g?1 after 100 cycles, and a superior rate capacity of 337 mAh g?1 retained after 100 cycles at 500 mA g?1. The superior performance achieved in HxMoO3@C nanobelts anode system are attributed to the synergistic effect of the conductive HxMoO3, the enlargement of interplanar spacing and uniform carbon coating shell.