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Enhancing the Photocatalytic Hydrogen Evolution Activity of Mixed-Halide Perovskite CH3NH3PbBr3-xIx Achieved by Bandgap Funneling of Charge Carriers

文献类型：期刊论文

作者Wu, Yaqiang1; Wang, Peng1; Guan, Zihan1; Liu, Junxue2,3; Wang, Zeyan1; Zheng, Zhaoke1; Jin, Shengye2,3; Dai, Ying4; Whangbo, Myung-Hwan5; Huang, Baibiao1
刊名ACS CATALYSIS
出版日期2018-11-01
卷号8期号:11页码:10349-10357
关键词perovskite photocatalysis halide gradient bandgap funneling hydrogen evolution
ISSN号2155-5435
DOI10.1021/acscatal.8b02374
通讯作者Wang, Peng(pengwangicm@sdu.edu.cn) ; Huang, Baibiao(bbhuang@sdu.edu.cn)
英文摘要Powder samples of mixed halide perovskite MAPbBr(3-x)I(x) (MA = methylammonium ion, CH3NH3+) were prepared by employing a facile light-assisted halide-exchange method in aqueous halide solution at room temperature. It is found that the distribution of iodide ions in the MAPbBr(3-x)I(x) particles tends to be largest on the surface and becomes lower on going into the interior so that they have a correct bandgap funnel structure that is needed for transferring photogenerated charge carriers from the interior to the surface. Consequently, the MAPbBr(3-x)I(x)/Pt powder sample (250 mg) exhibits an enhanced photocatalytic activity for a H-2 evolution under visible light (100 mW cm(-2), lambda > 420 nm) with the rate of 651.2 mu mol h(-1) and a solar-to-chemical conversion efficiency of 1.05%.
WOS关键词LIGHT-EMITTING-DIODES ; SOLAR-CELLS ; TRIHALIDE PEROVSKITE ; VISIBLE-LIGHT ; EFFICIENT ; GRADIENT ; NANOSTRUCTURES ; NANOCRYSTALS ; EXTRACTION ; CONVERSION
资助项目National Natural Science Foundation of China[51602179] ; National Natural Science Foundation of China[21832005] ; National Natural Science Foundation of China[21333006] ; National Natural Science Foundation of China[21573135] ; National Natural Science Foundation of China[11374190] ; National Basic Research Program of China (973 program)[2013CB632401] ; Recruitment Program of Global Experts, China ; Taishan Scholars Program of Shandong Province
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000449723900048
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; Recruitment Program of Global Experts, China ; Recruitment Program of Global Experts, China ; Taishan Scholars Program of Shandong Province ; Taishan Scholars Program of Shandong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; Recruitment Program of Global Experts, China ; Recruitment Program of Global Experts, China ; Taishan Scholars Program of Shandong Province ; Taishan Scholars Program of Shandong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; Recruitment Program of Global Experts, China ; Recruitment Program of Global Experts, China ; Taishan Scholars Program of Shandong Province ; Taishan Scholars Program of Shandong Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; Recruitment Program of Global Experts, China ; Recruitment Program of Global Experts, China ; Taishan Scholars Program of Shandong Province ; Taishan Scholars Program of Shandong Province
源URL[http://cas-ir.dicp.ac.cn/handle/321008/166662]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Wang, Peng; Huang, Baibiao
作者单位1.Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat iChEM, 457 Zhongshan Rd, Dalian 116023, Peoples R China
4.Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
5.North Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA
推荐引用方式
GB/T 7714		 Wu, Yaqiang,Wang, Peng,Guan, Zihan,et al. Enhancing the Photocatalytic Hydrogen Evolution Activity of Mixed-Halide Perovskite CH3NH3PbBr3-xIx Achieved by Bandgap Funneling of Charge Carriers[J]. ACS CATALYSIS,2018,8(11):10349-10357.
APA Wu, Yaqiang.,Wang, Peng.,Guan, Zihan.,Liu, Junxue.,Wang, Zeyan.,...&Huang, Baibiao.(2018).Enhancing the Photocatalytic Hydrogen Evolution Activity of Mixed-Halide Perovskite CH3NH3PbBr3-xIx Achieved by Bandgap Funneling of Charge Carriers.ACS CATALYSIS,8(11),10349-10357.
MLA Wu, Yaqiang,et al."Enhancing the Photocatalytic Hydrogen Evolution Activity of Mixed-Halide Perovskite CH3NH3PbBr3-xIx Achieved by Bandgap Funneling of Charge Carriers".ACS CATALYSIS 8.11(2018):10349-10357.

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来源：大连化学物理研究所

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