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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202008264
|2 doi
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|a pubmed24n1074.xml
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|a (DE-627)NLM322480620
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|a (NLM)33690954
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zhang, Ying
|e verfasserin
|4 aut
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|a Stable Unbiased Photo-Electrochemical Overall Water Splitting Exceeding 3% Efficiency via Covalent Triazine Framework/Metal Oxide Hybrid Photoelectrodes
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|c 2021
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|a Text
|b txt
|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 14.04.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a Photo-electrochemical (PEC) water splitting systems using oxide-based photoelectrodes are highly attractive for solar-to-chemical energy conversion. However, despite decades-long efforts, it is still challenging to develop efficient and stable photoelectrodes for practical applications. Here, thin layers of covalent triazine frameworks (CTF-BTh) containing a bithiophene moiety are conformably deposited onto the surfaces of a Cu2 O photocathode and a Mo-doped BiVO4 photoanode via electropolymerization to construct new hybrid photoelectrodes, successfully addressing the efficiency and stability issues. The CTF-BTh possesses a suitable band structure to form favorable band edge alignment with each metal oxide, creating a p-n junction and a staggered type-II heterojunction with Cu2 O and Mo-doped BiVO4 , respectively. Thus, the as-fabricated hybrid photoelectrodes exhibit substantially increased PEC performances. Meanwhile, the CTF-BTh film also serves as an effective corrosion-resistant overlayer for both photoelectrodes to inhibit photocorrosion and enable long-term operation for 150 h with only ≈10% loss in photocurrent densities. Furthermore, a stand-alone unbiased PEC tandem device comprising CTF-BTh-coated photoelectrodes exhibits 3.70% solar-to-hydrogen conversion efficiency. Even after continuous operation for 120 h, the efficiency can still retain at 3.24%
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|a Journal Article
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|a Review
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|a covalent triazine frameworks
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|a heterojunctions
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|a photo-electrochemical cells
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|a surface protection
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|a water splitting
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| 700 |
1 |
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|a Lv, Haifeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Zhen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Xiaojun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Hangxun
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 15 vom: 10. Apr., Seite e2008264
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:33
|g year:2021
|g number:15
|g day:10
|g month:04
|g pages:e2008264
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|u http://dx.doi.org/10.1002/adma.202008264
|3 Volltext
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