| Autor: |
Dmitrii Rakov, Chunyu Sun, Ziang Lu, Siwei Li, Ping Xu |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Advanced Energy & Sustainability Research, Vol 2, Iss 11, Pp n/a-n/a (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2699-9412 |
| DOI: |
10.1002/aesr.202100071 |
| Popis: |
Herein a facile synthesis methodology is reported that results in a unique 3D NiSe@Ni1−xFexSe2 core–shell nanostructure on nickel foam substrate, where Ni1−xFexSe2 nanosheets are fabricated on NiSe nanowires through an iron‐doping‐induced phase transformation process under solvothermal conditions. This material demonstrates stable hydrogen and oxygen evolution activity in 1.0 m KOH with a small overpotential of 153 mV@−10 mA cm−2 and 236 mV@100 mA cm−2, respectively. Furthermore, an efficient and stable water electrolyzer with NiSe@Ni1−xFexSe2/nickel foam as both anode and cathode is fabricated, which requires a low overpotential of 1.60 V to deliver a current density of 10 mA cm−2. Such ion‐doping‐induced phase transformation paves a new way for fabricating highly efficient electrocatalysts for energy storage and conversion. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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