Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 614, Issue -, Pages 337-344Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2022.01.129
Keywords
Electrocatalyst; Heteroatom doping; Hydrogen evolution reaction; Morphology; Electronic modulation
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In this study, MoO2-MoO3/Ni2P nanoflowers were fabricated as an electrocatalyst with enhanced performance. The electronic structure of the active sites was adjusted through the co doping strategy, significantly improving the catalyst's performance. Moreover, the introduction of Mo allowed for morphology control, increasing the electrochemical active area.
The electronic modulation and morphology control of electrocatalysts are effective strategies to improve their catalytic performance. Herein, MoO2-MoO3/Ni2P nanoflowers were fabricated on the skeleton of conductive nickel foam as an electrocatalyst with enhanced performance via a universal hydrothermal and phosphating method. The introduction of P and Mo into the nickel-based catalyst through the co doping strategy effectively adjusted the electronic structure of the Ni active sites, thereby significantly improving the performance of the catalyst. Particularly, the introduction of Mo allowed adjusting the morphology of the material, thereby increasing the electrochemical active area and promoting the exposure of more active sites. This strategy for improving the electrocatalyst's performance in urea-assisted water splitting will provide a new concept for the simultaneous mitigation of the energy crisis and environmental contamination. (C) 2022 Elsevier Inc. All rights reserved.
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