Photocatalytic Anaerobic Dehydrogenation of Alcohols over Metal Halide Perovskites: A New Acid-Free Scheme for H2 Production

被引：17

作者：

Chen, Taoran ^{[1
]}

Weng, Bo ^{[2
]}

Lu, Suwei ^{[1
]}

Zhu, Haixia ^{[3
]}

Chen, Zhihui ^{[3
]}

Shen, Lijuan ^{[1
]}

Roeffaers, Maarten B. J. ^{[2
]}

Yang, Min-Quan ^{[1
]}

机构：

[1] Fujian Normal Univ, Coll Environm Sci & Engn, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China

[2] Katholieke Univ Leuven, Dept Microbial & Mol Syst, cMACS, 3001 Leuven, Belgium

[3] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Nanophonon & Devices, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2022年 / 13卷 / 28期

基金：

中国国家自然科学基金;

关键词：

CO2; REDUCTION; HYDROGEN-PRODUCTION; FUNNEL STRUCTURE; QUANTUM DOTS; EVOLUTION; GRAPHENE; NANOCRYSTALS; NANOSHEETS; COMPOSITE; EFFICIENT;

D O I：

10.1021/acs.jpclett.2c01501

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photocatalytic H-2 evolution from haloid acid (HX) solution by metal halide perovskites (MHPs) has been intensively investigated; however, the corrosive acid solution severely restricts its practical operability. Therefore, developing acid-free schemes for H-2 evolution using MHPs is highly desired. Here, we investigate the photocatalytic anaerobic dehydrogenation of alcohols over a series of MHPs (APbX(3), A = Cs+, CH3NH3+ (MA), CH(NH2)(2)(+) (FA); X = Cl-, Br-, I-) to simultaneously produce H-2 and aldehydes. Via the coassembly of Pt and rGO nanosheets on MAPbBr(3) microcrystals, the optimal MAPbBr(3)/rGO-Pt reaches a H-2 evolution rate of 3150 mu mol g(-1) h(-1) under visible light irradiation (780 nm >= lambda >= 400 nm), which is more than 105-fold higher than pure MAPbBr(3) (30 mu mol g(-1) h(-1)). The present work not only brings new ample opportunities toward photocatalytic H-2 evolution but also opens up new avenues for more effective utilization of MHPs in photocatalysis.

引用

页码：6559 / 6565

页数：7

共 60 条

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