Enhanced electrochemical performance of MoSe 2 nanosheets on CoAllayered double hydroxide for oxygen evolution reaction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39921912" target="_blank" >RIV/00216275:25310/24:39921912 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0925838824007606?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838824007606?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2024.174173" target="_blank" >10.1016/j.jallcom.2024.174173</a>

Result language
angličtina
Original language name
Enhanced electrochemical performance of MoSe 2 nanosheets on CoAllayered double hydroxide for oxygen evolution reaction
Original language description
The design of high -efficiency electrocatalysts for water electrolysis has attracted much attention. A crucial halfreaction in electrochemical water splitting is the oxygen evolution reaction (OER), which suffers from sluggish reaction kinetics due to the high -energy barrier of the complex electron transfer process. This study presents a MoSe 2 @CoAl-layered double hydroxide (LDH) hybrid nanostructure prepared using the facile hydrothermal method and investigated as a potential OER electrocatalyst. Morphological analysis indicated that the MoSe 2 formed in very thin nanosheet structures containing multiple defects on the LDH platelets, increasing the number of catalytic active sites. Compared with pristine MoSe 2 and CoAl-LDH, the obtained MoSe 2 @CoAl-LDH catalyst exhibited enhanced electrocatalytic activity for the OER in an alkaline solution. The MoSe 2 @CoAl-LDH electrocatalyst showed an overpotential of 360 mV at a current density of 10 mA cm -2 and a small Tafel slope of 53 mV dec -1 . In addition, it demonstrated good electrochemical stability. The MoSe 2 @CoAl-LDH exhibited a lower Tafel slope than commercial RuO 2 , indicating faster electron transfer on the MoSe 2 @CoAl-LDH electrode.
Czech name
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Czech description
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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
20500 - Materials engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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