Rational doping regulation of Cu(OH)2 and Cu3P obtained by three-step continuous transformation for overall water splitting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10490815" target="_blank" >RIV/00216208:11320/25:10490815 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=_6hPb39KWA" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=_6hPb39KWA</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2025.162333" target="_blank" >10.1016/j.apsusc.2025.162333</a>
Alternative languages
Result language
angličtina
Original language name
Rational doping regulation of Cu(OH)2 and Cu3P obtained by three-step continuous transformation for overall water splitting
Original language description
Non-precious metal-based electrocatalysts are earth-abundant and cost-effective, which are expected to be alternative to traditional precious metal-based electrocatalysts. However, Cu-based electrocatalysts are plagued by low intrinsically catalytic activity for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) and deactivation at high potentials. Herein, the doping effect of 3d transition metal elements including Co, Cr, Fe, Mn, and Ni on the HER activity of Cu3P and the OER activity of CuOOH were theoretically determined by first principles calculations. Co-Cu3P and Co-CuOOH exhibit improved HER and OER activities, respectively, which are attributed to the decreasing electron transfer between the substrate and OH/H induced by the doping Co atom. Experiments confirmed that Co-Cu(OH)2 and Co-Cu3P yield overpotentials of 242.6 mV and 78.8 mV at a current density of 10 mA cm-2 for OER and HER, respectively. A working voltage of 1.54 V at a current density of 10 mA cm-2 was achieved for a Co-Cu(OH)2 || Co-Cu3P electrolyzer, comparable with that of the commercial RuO2/CF || Pt/C/CF. These findings show the enormous potential of theory-guided rational design of electrocatalysts, providing a new pathway to develop high-performance electrocatalysts.
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
<a href="/en/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Quantum materials for applications in sustainable technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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
Applied Surface Science Advances
ISSN
2666-5239
e-ISSN
2666-5239
Volume of the periodical
688
Issue of the periodical within the volume
duben
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
162333
UT code for WoS article
001397888800001
EID of the result in the Scopus database
2-s2.0-85214519579