Alkaline Water Electrolysis Performance of Mixed Cation Metal Phosphorous Trichalcogenides

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43927573" target="_blank" >RIV/60461373:22310/24:43927573 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2468606923002241" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468606923002241</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mtener.2023.101468" target="_blank" >10.1016/j.mtener.2023.101468</a>

Result language
angličtina
Original language name
Alkaline Water Electrolysis Performance of Mixed Cation Metal Phosphorous Trichalcogenides
Original language description
A variety of mixed-cation metal phosphorus trichalcogenides (MnNiP2S6, FeCoP2S6, FeNiP2S6, CoNiP2S6, FeCoNiP2S6, and CrMnFeNiCoZnP2S6) are synthesized using chemical vapor transport and tested for water splitting under alkaline conditions. Among the materials synthesized, FeCoP2S6 demonstrates the most promising performance, acting as a catalyst with an overpotential of 409 mV and 325 mV for the hydrogen evolution reaction and oxygen evolution reaction (OER), respectively. To further enhance its catalytic activity, a combination of liquid phase exfoliation techniques assisted by microwave and sonication is employed to FeCoP2S6 (exf-FeCoP2S6), thereby increasing the surface area and exposing more active sites. Promising results are obtained for the OER, with exf-FeCoP2S6 displaying an overpotential of 271 mV, a value very closely matching the best performances reported in the literature under alkaline conditions. Long-term stability tests show a stable profile over time, corroborated by the XPS analysis and computer modeling, which confirms minimal degradation of the catalyst.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/LL2101" target="_blank" >LL2101: Next Generation of 2D Monoelemental Materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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