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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202001344
|2 doi
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|a pubmed24n1047.xml
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|a (DE-627)NLM314178724
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|a (NLM)32844530
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|a DE-627
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|a eng
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|a Chen, Guoqiang
|e verfasserin
|4 aut
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|a Lead-Free Halide Perovskite Cs3 Bi2 x Sb2-2 x I9 (x ≈ 0.3) Possessing the Photocatalytic Activity for Hydrogen Evolution Comparable to that of (CH3 NH3 )PbI3
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|c 2020
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 07.12.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a Lead-free perovskites Cs3 Bi2 x Sb2-2 x I9 (x = 0.1, 0.3, 0.5, 0.7, 0.9) are prepared by a co-precipitation method and their photocatalytic performance for hydrogen production is studied in aqueous HI solution. Compared with the lead-based perovskite (CH3 NH3 )PbI3 , Cs3 Bi2 x Sb2-2 x I9 has a better catalytic performance under air mass 1.5 G (AM 1.5 G) simulated sunlight (100 mW cm-2 ), powders of Cs3 Bi0.6 Sb1.4 I9 (100 mg) loaded with Pt nanoparticles show < H2 evolution rate of 92.6 µmol h-1 , which greatly exceeds that of (CH3 NH3 )PbI3 powders loaded with Pt nanoparticles (100 mg catalyst, 4 µmol h-1 ). The Cs3 Bi2 x Sb2-2 x I9 has a high stability, with no apparent decrease in catalytic activity after five consecutive H2 evolution experiments. The doping of Sb in Cs3 Bi2 x Sb2-2 x I9 effectively reduces the contribution of Bi3+ on the conduction band, attenuating the effect of Bi vacancy on band structure. Compared with pure Cs3 Bi2 I9 and Cs3 Sb2 I9 , Cs3 Bi2 x Sb2-2 x I9 has fewer midgap states and better optical absorption, which greatly enhances its performance for the hydrogen evolution reaction
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|a Journal Article
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|a Cs3Bi2xSb2-2xI9
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|a hydrogen-evolution solid solution
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|a lead-free perovskites
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|a photocatalysis
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|a Wang, Peng
|e verfasserin
|4 aut
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|a Wu, Yaqiang
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Qianqian
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Qian
|e verfasserin
|4 aut
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|a Wang, Zeyan
|e verfasserin
|4 aut
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|a Zheng, Zhaoke
|e verfasserin
|4 aut
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|a Liu, Yuanyuan
|e verfasserin
|4 aut
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|a Dai, Ying
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Baibiao
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 39 vom: 01. Okt., Seite e2001344
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:39
|g day:01
|g month:10
|g pages:e2001344
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|u http://dx.doi.org/10.1002/adma.202001344
|3 Volltext
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