A self-adapting energy-band docking of CuGaS2@BiVO4 S-scheme structure for efficient photoelectrochemical hydrogen production
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00636162" target="_blank" >RIV/68378271:_____/25:00636162 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s12598-024-03072-2" target="_blank" >https://doi.org/10.1007/s12598-024-03072-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s12598-024-03072-2" target="_blank" >10.1007/s12598-024-03072-2</a>
Alternative languages
Result language
angličtina
Original language name
A self-adapting energy-band docking of CuGaS2@BiVO4 S-scheme structure for efficient photoelectrochemical hydrogen production
Original language description
Typical p-n junctions have emerged as a promising strategy for contending with charge carrier recombination in solar conversion. However, the photo-corrosion and unsuitable energy band positions still hinder their practical application for hydrogen production from water in photoelectrochemical systems. Here, an in-situ photo-oxidation method is proposed for achieving self-adapting activation of BiVO4-based photoanodes with surface-encapsulated CuGaS2 particles by the ZnO layer. The self-adapting activation demotes the energy band positions of CuGaS2, establishing an S-scheme structure with BiVO4, resulting in an efficient p-n junction photoanode. The optimal sample exhibits enhanced photocurrent and an onset potential cathodically shifted by similar to 300 mV compared with BiVO4, which is attributed to significantly enhanced charge transport and transfer efficiencies. As expected, it attains the highest photocurrent value of 5.87 mA.cm(-2), aided by a hole scavenger at 1.23 V versus a reversible hydrogen electrode, which significantly surpasses that of BiVO4 (4.32 mA.cm(-2)).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
RARE METALS
ISSN
1001-0521
e-ISSN
1867-7185
Volume of the periodical
44
Issue of the periodical within the volume
3
Country of publishing house
CN - CHINA
Number of pages
14
Pages from-to
1742-1755
UT code for WoS article
001375826100001
EID of the result in the Scopus database
2-s2.0-105001077242