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In situ growth of cobalt@cobalt-borate core-shell nanosheets as highly-efficient electrocatalysts for oxygen evolution reaction in alkaline/neutral medium.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Xie, Chao Wang, Yanyong Yan, Dafeng Wang, Shuangyin |
| Copyright Year | 2017 |
| Abstract | Development of efficient non-noble metal electrocatalysts for oxygen evolution reaction (OER) is still a crucial issue for renewable energy technologies. Herein, we report a core-shell-like catalyst of amorphous cobalt borate nanosheets grown on metallic cobalt deposited on Ti-mesh (Co@Co-Bi/Ti) by an in situ conversion strategy. Benefiting from the high activity, large surface area of Co-Bi nanosheets, outstanding electronic conductivity of metallic Co and the 3D structure inherited from Ti-mesh substrate, Co@Co-Bi/Ti shows high OER activity with a relatively small overpotential of 329 mV to obtain a current density of 10 mA cm-2, a low Tafel slope of 46 mV dec-1 and an accessible large current density of 500 mA cm-2 in alkaline solution. Besides, Co@Co-Bi/Ti exhibits good performance in a near-neutral medium. This study provides an effective pathway to improve the cobalt metal based materials. |
| Starting Page | 16059 |
| Ending Page | 16065 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c7nr06054h |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c7/nr/c7nr06054h/c7nr06054h1.pdf |
| PubMed reference number | 29034399 |
| Alternate Webpage(s) | https://doi.org/10.1039/c7nr06054h |
| Journal | Medline |
| Volume Number | 9 |
| Issue Number | 41 |
| Journal | Nanoscale |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
