催化作用
硫黄
氧气
锂(药物)
化学
电池(电)
无机化学
吸附
化学工程
材料科学
有机化学
功率(物理)
内分泌学
工程类
物理
医学
量子力学
作者
Lingling Xu,Hongyang Zhao,Mingzi Sun,Bolong Huang,Jianwei Wang,Jiale Xia,Na Li,Deshun Yin,Meng Luo,Feng Luo,Yaping Du,Chun‐Hua Yan
标识
DOI:10.1002/anie.201905852
摘要
Oxygen vacancies are usually considered to be beneficial in catalytic conversion of polysulfides in lithium-sulfur batteries. Now it is demonstrated that the conversion of polysulfides was hindered by oxygen vacancies on ultrathin niobic acid. The inferior performance induced by the oxygen vacancy was mainly attributed to the decreased electric conductivity as well as the weakened adsorption of polysulfides on the catalyst surface. This work shows that the care should be taken when designing a new catalyst for the lithium-sulfur battery using a defect-engineering strategy.
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