化学工程
电化学
析氧
阳极
电解质
法拉第效率
过电位
分解水
电催化剂
电极
作者
Xueyi Lu,Yin Yin,Long Zhang,Lixia Xi,Steffen Oswald,Junwen Deng,Oliver G. Schmidt
出处
期刊:Nano Energy
[Elsevier]
日期:2016-12-01
卷期号:30: 69-76
被引量:29
标识
DOI:10.1016/j.nanoen.2016.09.034
摘要
Abstract Exploring highly efficient electrocatalysts is crucial for aprotic Li-O 2 batteries. Pd/NiO nanomembranes with hierarchical pores are fabricated and employed as cathode catalysts in Li-O 2 batteries. By means of standard photolithography, ordered macropores were prepared in the nanomembranes. Moreover, we developed a facile template-free method to create nanopores with sizes ranging from 50 to 200 nm in the composite. The diverse pores of micro- and nanometer sizes and the resulting loose structure supply fast channels for the transportation of reactants, thus efficiently promoting the performance of Li-O 2 batteries by lowering the overvoltages and enhancing the rate capability and stability.
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