Rapidly catalysis of oxygen evolution through sequential engineering of vertically layered FeNi structure
文献类型：期刊论文
| 作者 | Wang, Guichang; Li, Jinghong; Qu, Jiuhui ; Liu, Huijuan; Zhang, Gong
|
| 刊名 | NANO ENERGY
 |
| 出版日期 | 2018 |
| 卷号 | 43页码:359-367 |
| 关键词 | Electrocatalyst O-2 evolution 2D Fe-Ni structure |
| ISSN号 | 2211-2855 |
| 文献子类 | Article |
| 英文摘要 | For practical hydrogen (H-2) production via water electrolysis, large-scale design and fabrication of catalysts for high-efficiency electrochemical transformation of hydroxyl ions to oxygen in alkaline environment is of paramount importance to reduce energy losses. Using anodization, electroplating, and sequential electrodeposition, we herein realized a universal approach to vertically assemble 2D Fe-Ni hydroxide nanosheets on nickel foam surface as catalyst for oxygen evolution reaction (OER). The electrode exhibited OER onset overpotentials (eta) of similar to 190 mV and a low eta of similar to 270 mV at a current density of 100 mA cm-2 in KOH electrolyte, making it one of the most active OER catalysts reported so far. The FeNi films deposited via sequential deposition are highly ordered, and electrode is stable even under long term or large current density operation. Based on the results of theoretical calculation, dielectric force microscopy (DFM) analysis, and capacitance measurements, we found that 2D Fe-Ni hydroxide-loaded electrode with enhanced conductivity facilitates the sufficiently conversion of active sites and ensures optimal adsorption energies for intermediates of OER, as a result of structural effects as well as introduction of optimal amount of Fe on surface. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41173]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Guichang,Li, Jinghong,Qu, Jiuhui,et al. Rapidly catalysis of oxygen evolution through sequential engineering of vertically layered FeNi structure[J]. NANO ENERGY,2018,43:359-367. |
| APA | Wang, Guichang,Li, Jinghong,Qu, Jiuhui,Liu, Huijuan,&Zhang, Gong.(2018).Rapidly catalysis of oxygen evolution through sequential engineering of vertically layered FeNi structure.NANO ENERGY,43,359-367. |
| MLA | Wang, Guichang,et al."Rapidly catalysis of oxygen evolution through sequential engineering of vertically layered FeNi structure".NANO ENERGY 43(2018):359-367. |
入库方式： OAI收割
来源：生态环境研究中心
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