| Autor: |
Yaqian Dong, Zhi Fang, Weiyou Yang, Bin Tang, Qiao Liu |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
ACS applied materialsinterfaces. 14(8) |
| ISSN: |
1944-8252 |
| Popis: |
Fabrication of amorphous electrocatalysts without noble metals for cost-effective full water splitting is highly desired but remains a substantial challenge. In the present work, we report a facile strategy for exploring integrated bifunctional electrocatalysts based on amorphous cobalt/nickel sulfide nanoflake arrays self-supported on carbon cloth, by tailoring competitive coordination of metal ions between glucose and 2-aminoterephthalic acid. Ultrahigh dispersion of binary metal active sites with balanced atomic distribution enables the optimization of catalytic properties for both the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) in an alkaline solution. The obtained catalyst exhibits remarkably enhanced OER and HER activities as compared with its oxide counterpart and analogues with different Co/Ni ratios. It requires overpotentials of 296 and 192 mV to deliver a current density of 10 mA cm |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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