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Stable hybrid perovskite MAPb(I1-xBrx)(3) for photocatalytic hydrogen evolution
Zhao, Zhijie; Wu, Jiaojiao; Zheng, Yan-Zhen; Li, Nan; Li, Xitao; Ye, Zhili; Lu, Siyu; Tao, Xia; Chen, Chuncheng
2019-09-15
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume253Pages:41-48
AbstractHybrid organic-inorganic perovskites have been pursuing for solar/visible-driven H-2 evolution from hydrohalic acid (HX) splitting, but their inherent structural stability and performance are still challenging. Herein, we report on a stable hybrid perovskite MAPb(I1-xBrx)(3) (x = 0-0.20) obtained by one-pot crystallization in a mixed halide parent solution and its implementation as a newcomer photocatalyst for H-2 evolution in aqueous HX solution. MAPb(I1-xBrx)(3) is demonstrated to be a superior visible-light-driven photocatalyst for H-2 evolution in aqueous HI/HBr solution with no Pt as a cocatalyst. An optimized MAPb(I1-xBrx)(3) (x = 0.10) shows a highest H-2 evolution rate of 1471 mu mol h(-1) g(-1) under visible light (lambda >= 420 nm) illumination, which is (similar to)40 times higher than that of pure MAPbI(3), and the dual-halide perovskite is rather stable showing no obvious decrease in the photocatalytic activity over 60 runs (252 h). The perovskite inherent structural stability is further evidenced by XRD, UV-vis spectra and EDS elemental mapping of MAPb(I1-xBrx)(3) measured after cycled photocatalytic reaction. The solar HI splitting efficiency of MAPb(I1-xBrx)(3) (x = 0.10) is determined as 1.42%. The mechanism behind photocatalytic H-2 evolution enhancement is elucidated by the experimental and computational methods.
DOI10.1016/j.apcatb.2019.04.050
Indexed BySCI
Language英语
WOS IDWOS:000469904500005
EI Accession Number1873-3883
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82592
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Zhijie,Wu, Jiaojiao,Zheng, Yan-Zhen,et al. Stable hybrid perovskite MAPb(I1-xBrx)(3) for photocatalytic hydrogen evolution[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,253:41-48.
APA Zhao, Zhijie.,Wu, Jiaojiao.,Zheng, Yan-Zhen.,Li, Nan.,Li, Xitao.,...&Chen, Chuncheng.(2019).Stable hybrid perovskite MAPb(I1-xBrx)(3) for photocatalytic hydrogen evolution.APPLIED CATALYSIS B-ENVIRONMENTAL,253,41-48.
MLA Zhao, Zhijie,et al."Stable hybrid perovskite MAPb(I1-xBrx)(3) for photocatalytic hydrogen evolution".APPLIED CATALYSIS B-ENVIRONMENTAL 253(2019):41-48.
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