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 |
| ISSN号 | 2155-5435 |
| 关键词 | Perovskite Photocatalysis Halide gradient Bandgap funneling Hydrogen evolution |
| DOI | 10.1021/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 |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000449723900048 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373086 |
| 专题 | 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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