Engineering Ni3+ inside nickel selenide as efficient bifunctional oxygen electrocatalysts for Zn–air batteries
| العنوان: | Engineering Ni3+ inside nickel selenide as efficient bifunctional oxygen electrocatalysts for Zn–air batteries |
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| المؤلفون: | Chong Xie, Hong Su, Lijuan Peng, Si-Jie Li, Qiu-Ren Pan, Kaixin Tong, Dong-Yao Wang, Nan Li |
| المصدر: | Journal of Materials Science. 54:9063-9074 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Battery (electricity), Materials science, Mechanical Engineering, Oxygen evolution, Nickel selenide, Electrocatalyst, law.invention, chemistry.chemical_compound, chemistry, Chemical engineering, Mechanics of Materials, law, Selenide, Electrode, General Materials Science, Bifunctional, Clark electrode |
| الوصف: | Developing a high-efficienct, low-cost and stable non-noble-metal-based bifunctional electrocatalyst for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) as oxygen electrode material in the rechargeable zinc–air battery is crucial in renewable energy conversion technologies. In this work, nitrogen-doped hollow carbon sphere (NHCS) decorated with various nickel selenide (NixSe) nanoparticles had been designed and successfully prepared. Among them, the Ni0.85Se–NHCS with the highest percentage of Ni3+ could serve as a new efficient bifunctional electrocatalyst toward ORR/OER (with an onset potential of 0.850 V for ORR and a potential of 1.583 V at 10 mA·cm−2 for OER) in an alkaline medium. Furthermore, the assembled Zn–air battery coupled with Ni0.85Se–NHCS electrode has excellent discharging–charging performance and long lifetime. This work provides a valuable understanding on transition metal non-oxide electrocatalysts and expands the applications of selenide-based materials. |
| تدمد: | 1573-4803 0022-2461 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::d155f0e59d8eef80e97e47a26c70474c https://doi.org/10.1007/s10853-019-03520-w |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........d155f0e59d8eef80e97e47a26c70474c |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15734803 00222461 |
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