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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201800486
|2 doi
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|a pubmed25n0941.xml
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|a (NLM)29602201
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|a DE-627
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|a eng
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| 100 |
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|a Wang, Songcan
|e verfasserin
|4 aut
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| 245 |
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|a New BiVO4 Dual Photoanodes with Enriched Oxygen Vacancies for Efficient Solar-Driven Water Splitting
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 01.08.2018
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Bismuth vanadate (BiVO4 ) is a promising photoanode material for photoelectrochemical (PEC) water splitting. However, owing to the short carrier diffusion length, the trade-off between sufficient light absorption and efficient charge separation often leads to poor PEC performance. Herein, a new electrodeposition process is developed to prepare bismuth oxide precursor films, which can be converted to transparent BiVO4 films with well-controlled oxygen vacancies via a mild thermal treatment process. The optimized BiVO4 film exhibits an excellent back illumination charge separation efficiency mainly due to the presence of enriched oxygen vacancies which act as shallow donors. By loading FeOOH/NiOOH as the cocatalysts, the BiVO4 dual photoanodes exhibit a remarkable and highly stable photocurrent density of 5.87 mA cm-2 at 1.23 V versus the reversible hydrogen electrode under AM 1.5 G illumination. An artificial leaf composed of the BiVO4 /FeOOH/NiOOH dual photoanodes and a single sealed perovskite solar cell delivers a solar-to-hydrogen conversion efficiency as high as 6.5% for unbiased water splitting
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|a Journal Article
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|a bismuth vanadate
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|a oxygen vacancies
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|a photoanodes
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|a solar energy conversion
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|a unbiased water splitting
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|a Chen, Peng
|e verfasserin
|4 aut
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1 |
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|a Bai, Yang
|e verfasserin
|4 aut
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1 |
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|a Yun, Jung-Ho
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Gang
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Lianzhou
|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 30(2018), 20 vom: 30. Mai, Seite e1800486
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:20
|g day:30
|g month:05
|g pages:e1800486
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|u http://dx.doi.org/10.1002/adma.201800486
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