金属空气电池阴极氧还原催化剂研究进展

发布时间：2018-04-29 15:36

本文选题：金属空气电池 + 氧还原反应　；参考：《化学学报》2015年04期

【摘要】：随着能源危机加剧和生态环境恶化,可持续发展能源受到更大的重视.金属空气电池作为一种绿色能源是具有很大发展潜力的新一代电池.与传统电池相比,此类电池有着更高的理论能量密度,尤其是锂空电池,能量密度可达3505 Wh/kg,然而阴极缓慢的氧还原反应成为制约其发展的关键因素之一.在简要介绍氧还原反应机理基础上,着重介绍了近年来氧还原催化剂如贵金属及其合金、过渡金属氧化物/硫化物、功能化碳材料和金属氮化物的研究进展,并根据目前所存在问题指出未来研究方向,包括深入研究氧还原反应机理,明确催化剂活性位;研究催化剂结构等对催化活性的影响,优化制备条件,以提高催化活性和稳定性;根据氧还原机理设计开发新型氧还原催化剂.
[Abstract]:With the aggravation of the energy crisis and the deterioration of the ecological environment, more attention has been paid to the sustainable development of energy. As a kind of green energy, metal air battery is a new generation battery with great development potential. Compared with traditional batteries, these batteries have higher theoretical energy density, especially for lithium empty cells, which can reach 3505 Wha / kg. However, the slow oxygen reduction reaction of cathode becomes one of the key factors restricting its development. On the basis of a brief introduction to the mechanism of oxygen reduction reaction, the research progress of oxygen reduction catalysts such as noble metals and their alloys, transition metal oxides / sulfides, functionalized carbon materials and metal nitrides in recent years is reviewed. According to the existing problems, the future research direction is pointed out, including the further study of the mechanism of oxygen reduction reaction, the determination of the active site of the catalyst, the study of the influence of the catalyst structure on the catalytic activity, and the optimization of the preparation conditions. In order to improve the catalytic activity and stability, a new oxygen reduction catalyst was designed and developed according to the oxygen reduction mechanism.
【作者单位】：山西师范大学化学与材料科学学院;
【基金】：山西师范大学自然科学基金(No.ZR1402)资助~~
【分类号】：O643.36;TM911.41

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