Porous Cobalt Sulfide Selenium Nanorods for Electrochemical Hydrogen Evolution
| العنوان: | Porous Cobalt Sulfide Selenium Nanorods for Electrochemical Hydrogen Evolution |
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| المؤلفون: | Yingchao Song, Chucai Guo, Zhengtian Shi, Zhiyuan Zhang, Xiangqian Qi, Jianfa Zhang, Zhihong Zhu |
| المصدر: | ACS Omega, Vol 6, Iss 36, Pp 23300-23310 (2021) ACS Omega |
| بيانات النشر: | American Chemical Society, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, General Chemical Engineering, chemistry.chemical_element, General Chemistry, Overpotential, Electrochemical energy conversion, Cobalt sulfide, Article, Catalysis, chemistry.chemical_compound, Chemistry, Chemical engineering, chemistry, Electrode, Nanorod, Cobalt, QD1-999, Hydrogen production |
| الوصف: | A key process in electrochemical energy technology is hydrogen evolution reaction (HER). However, its electrochemical properties mainly depend on the catalytic activity of the material itself. Therefore, it is important to find efficient electrocatalysts to realize clean hydrogen production. As a typical kind of catalytic materials, transition metal dichalcogenides (TMCs) play important roles in the field of energy catalysis. As a representative of TMCs, cobalt disulfide (CoS2), recently has raised much research interest owing to its abundant reserves, environmental friendliness, and excellent electrochemical stability. Meanwhile, given the fact that doping is one of the effective methods to improve the electrochemical catalytic property, various means of doping have been researched. Here, we report for the first time that porous-like Se-CoS2-x (or Se:CoS2-x ) nanorod can be facilely synthesized via a controllable two-step strategy. It is demonstrated that doping Se can greatly improve the catalytic performance of CoS2 electrode. The electrode can obtain a current density of 10 mA cm-2 at overpotential of only ∼260 mV. And the current changes with the applied bias voltage in an obvious stepped pattern, in the chronopotential (CP) curve of Se-CoS2-x , indicating its outstanding mass transfer property and mechanical stability. |
| اللغة: | English |
| تدمد: | 2470-1343 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b52df88b6dd5d17d71ad025f763e8de https://doaj.org/article/4745f4c83d0f44818276ace107a61454 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....7b52df88b6dd5d17d71ad025f763e8de |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 24701343 |
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