Alkaline Water Electrolysis Performance of Mixed Cation Metal Phosphorous Trichalcogenides

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Alkaline Water Electrolysis Performance of Mixed Cation Metal Phosphorous Trichalcogenides

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Alkaline Water Electrolysis Performance of Mixed Cation Metal Phosphorous Trichalcogenides

Popis výsledku anglicky

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.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/LL2101" target="_blank" >LL2101: Příští Generace Monoelementárních 2D Materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Today Energy

ISSN

2468-6069

e-ISSN

2468-6069

Svazek periodika

29

Číslo periodika v rámci svazku

January 2024

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

28

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85181170876