Crystallinity-Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni3B for Efficient Water Oxidation
文献类型：期刊论文
| 作者 | Jiang, Wen-Jie1,4; Niu, Shuai1,3; Tang, Tang1; Zhang, Qing-Hua2; Liu, Xiao-Zhi2; Zhang, Yun1; Chen, Yu-Yun1; Li, Ji-Hui3; Gu, Lin2,4; Wan, Li-Jun1,4 |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 56期号:23页码:6572-6577 |
| 关键词 | Electrolysis Nanohybrids Nickel Borate Oxygen Evolution Reaction Water Splitting |
| 英文摘要 | The exploration of new efficient OER electrocatalysts based on nonprecious metals and the understanding of the relationship between activity and structure of electrocatalysts are important to advance electrochemical water oxidation. Herein, we developed an efficient OER electrocatalyst with nickel boride (Ni3B) nanoparticles as cores and nickel(II) borate (Ni-B-i) as shells (Ni-B-i@NB) via a very simple and facile aqueous reaction. This electrocatalyst exhibited a small overpotential of 302 mV at 10 mA cm(-2) and Tafel slope of 52 mV dec(-1). More interestingly, it was found that the OER activity of Ni-B-i@NB was closely dependent on the crystallinity of the Ni-B-i shells. The partially crystalline Ni-B-i catalyst exhibited much higher activity than the amorphous or crystalline analogues; this higher activity originated from the enhanced intrinsic activity of the catalytic sites. These findings open up opportunities to explore nickel(II) borates as a new class of efficient nonprecious metal OER electrocatalysts, and to improve the electrocatalyst performance by modulating their crystallinity. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38406]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 3.Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050024, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Wen-Jie,Niu, Shuai,Tang, Tang,et al. Crystallinity-Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni3B for Efficient Water Oxidation[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2017,56(23):6572-6577. |
| APA | Jiang, Wen-Jie.,Niu, Shuai.,Tang, Tang.,Zhang, Qing-Hua.,Liu, Xiao-Zhi.,...&Hu, Jin-Song.(2017).Crystallinity-Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni3B for Efficient Water Oxidation.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,56(23),6572-6577. |
| MLA | Jiang, Wen-Jie,et al."Crystallinity-Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni3B for Efficient Water Oxidation".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56.23(2017):6572-6577. |
入库方式： OAI收割
来源：化学研究所
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