We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Reduced Graphene Oxide Supported Zinc Tungstate Nanoparticles as Proficient Electro-Catalysts for Hydrogen Evolution Reactions.
- Authors
Alhokbany, Norah; Ahamad, Tansir; Alshehri, Saad M.; Ahmed, Jahangeer
- Abstract
The nanocomposites of reduced graphene oxide (rGO) supported zinc tungstate nanoparticles (ZnWO4-NPs) receive considerable attention in electro-catalytic hydrogen evolution reactions (HER) and reveal significantly higher electro-catalytic performances than pure ZnWO4-NPs in alkaline media (i.e., 0.5 M KOH electrolyte). The polarization studies show that the ZnWO4-NPs@rGO nanocomposites exhibit low energy loss and good electrode stability during electrochemical reactions for HER. Furthermore, the Tafel slope of ZnWO4-NPs@rGO nanocomposites is found to be approximately 149 mV/dec, which closely agrees with the reported Tafel values of the noble metal electrocatalyst. In contrast, the performance of the ZnWO4-NPs@rGO nanocomposite is found to be approximately 1.5 times higher than that of ZnWO4-NPs in hydrogen production efficiency. Our results emphasize the significance of the nanocomposites with enhanced electro-catalytic activities by lowering the energy loss during electro-catalysis in an alkaline medium.
- Subjects
HYDROGEN evolution reactions; ELECTROCATALYSTS; NANOPARTICLES; TUNGSTATES; ZINC oxide; ENERGY dissipation; GRAPHENE oxide
- Publication
Catalysts (2073-4344), 2022, Vol 12, Issue 5, p530
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal12050530