Bimetallic MoFe phosphide catalysts for the hydrogen evolution reaction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43930160" target="_blank" >RIV/60461373:22310/24:43930160 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/24:63580079
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0013468624012453?via%3Dihub#sec0016" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013468624012453?via%3Dihub#sec0016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2024.145008" target="_blank" >10.1016/j.electacta.2024.145008</a>
Alternative languages
Result language
angličtina
Original language name
Bimetallic MoFe phosphide catalysts for the hydrogen evolution reaction
Original language description
In this work, highly efficient and stable (bi)metallic phosphides were prepared by a facile, flexible, and controllable sol-gel method followed by sintering. This novel approach allowed to avoid complicated and dangerous phosporization using, e.g. red phosphorus. The doping of the MoP catalysts with Fe was used to further boost their catalytic performance. Monometallic MoP and Mo3P, as well as bimetallic MoFeP were tested in both acidic and alkaline environments and showed remarkable results. The incorporation of Fe enabled the creation of a scalable and cost-effective catalyst for the hydrogen evolution reaction due to the synergy between Fe and Mo in the bimetallic phosphides. Using MoFeP for catalysing the hydrogen evolution reaction, overpotentials of only -132 mV (in an acidic medium) and -142 mV (in an alkaline medium) were needed to reach current density of -10 mA.cm(-2), indicating the possibility of use this catalyst in a large pH range. Its high catalytic activity was maintained even at current density of -100 mA.cm(-2) as documented by overpotentials of -202 mV and -246 mV in acid and alkaline environment, respectively. This, along with excellent stability and durability confirms its promising potential for incorporation into industrially relevant applications. The experimental data were confirmed by computational (DFT) results, showcasing that incorporation of Fe caused an increase in the number of active sites with Gibbs adsorption energy close to zero.
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/EF16_025%2F0007414" target="_blank" >EF16_025/0007414: Fuel Cells with Low Platinum Content</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ELECTROCHIMICA ACTA
ISSN
0013-4686
e-ISSN
1873-3859
Volume of the periodical
506
Issue of the periodical within the volume
December
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
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UT code for WoS article
001314564600001
EID of the result in the Scopus database
2-s2.0-85203462919