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Activation Effect of Electrochemical Cycling on Gold Nanoparticles towards the Hydrogen Evolution Reaction in Sulfuric Acid
| Content Provider | eScholarship Repository: University of California |
|---|---|
| Author | Wang, Ying Sun, Yuanmiao Liao, Hanbin Sun, Shengnan Li, Shuzhou Ager, Joel W Xu, Zhichuan J |
| Abstract | This article reports a study of electrochemical cycling effects on hydrogen evolution catalytic activity of gold nanoparticles in sulfuric acid. We found that after cycling within the double layer regime, up to 0.64 V vs RHE, there is a dramatic effect on the HER activity of gold nanoparticles: 128 mV drop of the overpotential, a decrease of 23 mV/dec for the Tafel slope as well as a nearly twenty times increase of the turn-over frequency (TOF). This enhanced activity is tentatively assigned to the formation of stepped like structures by the consecutive electrochemical cycling in the double layer region. |
| File Format | |
| DOI | 10.1016/j.electacta.2016.05.095 |
| Alternate Webpage(s) | https://escholarship.org/uc/item/7wx3k238 |
| Language | English |
| Publisher Date | 2016-08-01 |
| Access Restriction | Open |
| Subject Keyword | Electrocatalysis Gold Nanoparticles Hydrogen Evolution Reaction Bioengineering Nanotechnology Affordable and Clean Energy Physical Sciences Chemical Sciences Engineering Energy |
| Content Type | Text |
| Resource Type | Article |
