Busupalli, Balanagulu ; Battu, Shateesh ; Haram, Santosh K. ; Prasad, B. L. V. (2016) In situ electrochemical transformation of Ni3S2 and Ni3S2-Ni from sheets to nanodisks: towards efficient electrocatalysis for Hydrogen Evolution Reaction (HER) ChemistrySelect, 1 (21). pp. 6708-6712. ISSN 2365-6549
Full text not available from this repository.
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/slct.20...
Related URL: http://dx.doi.org/10.1002/slct.201601567
Abstract
Transition metal sulphides have been viewed as alternatives to platinum based electrocatalysts for HER. Herein, we report the preparation of Ni3S2 in conjunction with Ni in a novel nanosheet morphology and verified its performance for HER. During cyclic polarization, exotic morphological transformation of Ni3S2-Ni from nanosheets to nanodisks has been noted. This change is accompanied with initial increase in over-potential that passed through maxima (∼ 100 mV above the starting potential) and decreased to ∼ 50 mV below the starting value. Enhanced electrocatalytic activity due to the morphological changes from sheets to nanodisks has been attributed to the formation of more number of exposed edge-planes known to promote HER. Kinetic analysis based on Tafel slope displayed by this composite is comparable to that of Pt based catalysts.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley & Sons, Inc. |
| ID Code: | 105262 |
| Deposited On: | 01 Feb 2018 17:10 |
| Last Modified: | 01 Feb 2018 17:10 |
Repository Staff Only: item control page
