NDLI: Three-Dimensional Au(NiMo)/Ti Catalysts for Efficient Hydrogen Evolution Reaction.

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Three-Dimensional Au(NiMo)/Ti Catalysts for Efficient Hydrogen Evolution Reaction.

Content Provider	Europe PMC
Author	Barua, Sukomol Balčiūnaitė, Aldona Vaičiūnienė, Jūrate Tamašauskaitė-Tamašiūnaitė, Loreta Norkus, Eugenijus
Editor	Kim, Soo Young Calvillo, Laura
Copyright Year	2022
Abstract	In this study, NiMo catalysts that have different metal loadings in the range of ca. 28-106 µg cm^-2 were electrodeposited on the Ti substrate followed by their decoration with a very low amount of Au-crystallites in the range of ca. 1-5 µg cm^-2 using the galvanic displacement method. The catalytic performance for hydrogen evolution reaction (HER) was evaluated on the NiMo/Ti and Au(NiMo)/Ti catalysts in an alkaline medium. It was found that among the investigated NiMo/Ti and Au(NiMo)/Ti catalysts, the Au(NiMo)/Ti-3 catalyst with the Au loading of 5.2 µg cm^-2 gives the lowest overpotential of 252 mV for the HER to reach a current density of 10 mA·cm^-2. The current densities for HER increase ca. 1.1-2.7 and ca. 1.1-2.2 times on the NiMo/Ti and Au(NiMo)/Ti catalysts, respectively, at -0.424 V, with an increase in temperature from 25 °C to 75 °C.
Journal	Materials (Basel)
Volume Number	15
DOI	10.3390/ma15227901
PubMed Central reference number	PMC9693304
Issue Number	22
PubMed reference number	36431387
e-ISSN	19961944
Language	English
Publisher	Molecular Diversity Preservation International (MDPI)
Publisher Date	2022-11-09
Access Restriction	Open
Subject Keyword	gold nickel molybdenum electrodeposition galvanic displacement hydrogen evolution reaction
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science

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