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影响因子：18.9

DOI码：10.1038/s41467-019-12009-8

发表刊物：Nature communications

摘要：The efficiency of sunlight-driven reduction of carbon dioxide (CO2), a process mimicking the photosynthesis in nature that integrates the light harvester and electrolysis cell to convert CO2 into valuable chemicals, is greatly limited by the sluggish kinetics of oxygen evolution in pH-neutral conditions. Current non-noble metal oxide catalysts developed to drive oxygen evolution in alkaline solution have poor performance in neutral solutions. Here we report a highly active and stable oxygen evolution catalyst in neutral pH, Brownmillerite Sr2GaCoO5, with the specific activity about one order of magnitude higher than that of widely used iridium oxide catalyst. Using Sr2GaCoO5 to catalyze oxygen evolution, the integrated CO2 reduction achieves the average solar-to-CO efficiency of 13.9% with no appreciable performance degradation in 19 h of operation. Our results not only set a record for the efficiency in sunlight-driven CO2 reduction, but open new opportunities towards the realization of practical CO2 reduction systems.

合写作者：Hui Zhou,Xiang Wang,Joseph Liao,Gunugunuri K. Reddy,Liangzi Deng,Torin C. Peck,Ruigang Zhang,M. Stanley Whittingham,Chongmin Wang,Ching-Wu Chu,Yan Yao,Hongfei Jia

第一作者：Li Qin Zhou

论文类型：期刊论文

通讯作者：Chen Ling

学科门类：工学

文献类型：J

卷号：10

期号：1

页面范围：4081

是否译文：否

发表时间：2019-09-09

收录刊物：SCI

发布期刊链接：https://www.nature.com/articles/s41467-019-12009-8