Loading...
Please wait, while we are loading the content...
Similar Documents
Reduced Graphene Oxide Supported Zinc Tungstate Nanoparticles as Proficient Electro-Catalysts for Hydrogen Evolution Reactions
| Content Provider | MDPI |
|---|---|
| Author | Alhokbany, Norah Ahamad, Tansir Alshehri, Saad M. Ahmed, Jahangeer |
| Copyright Year | 2022 |
| Description | The nanocomposites of reduced graphene oxide (rGO) supported zinc tungstate nanoparticles $(ZnWO_{4}$-NPs) receive considerable attention in electro-catalytic hydrogen evolution reactions (HER) and reveal significantly higher electro-catalytic performances than pure $ZnWO_{4}$-NPs in alkaline media (i.e., 0.5 M KOH electrolyte). The polarization studies show that the $ZnWO_{4}$-NPs@rGO nanocomposites exhibit low energy loss and good electrode stability during electrochemical reactions for HER. Furthermore, the Tafel slope of $ZnWO_{4}$-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 $ZnWO_{4}$-NPs@rGO nanocomposite is found to be approximately 1.5 times higher than that of $ZnWO_{4}$-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. |
| Starting Page | 530 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal12050530 |
| Journal | Catalysts |
| Issue Number | 5 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-05-09 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Environmental Engineering Nanocomposites Hydrogen Evolution Energy Storage and Conversion |
| Content Type | Text |
| Resource Type | Article |
