A Facile Strategy to Construct Amorphous Spinel-Based Electrocatalysts with Massive Oxygen Vacancies Using Ionic Liquid Dopant
文献类型：期刊论文
| 作者 | Sun, Jing1; Guo, Niankun1; Shao, Zhiyu1; Huang, Keke2; Li, Yaowen3; He, Feng4,5; Wang, Qin1 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2018-09-25 |
| 卷号 | 8期号:27 |
| 关键词 | Electrocatalysis Ionic Liquid Oxygen Evolution Reaction Oxygen Vacancy Spinel |
| ISSN号 | 1614-6832 |
| DOI | 10.1002/aenm.201800980 |
| 英文摘要 | Oxygen vacancies are demonstrated to be beneficial to various electrocatalytic reactions. However, integrating oxygen vacancies into an amorphous catalyst with a large specific surface area, and investigating its effect on the oxygen evolution reaction remains a great challenge. Herein, oxygen vacancies are introduced into an amorphous N, P, and F tri-doped CoFe2O4 using ionic liquid as a dopant. Simultaneously, ultrafine MoS2 nanoclusters are anchored onto its surface to increase the specific surface area. The vacancy-rich MoS2/NPF-CoFe2O4 exhibits an overpotential of 250 mV and a small Tafel slope of 41 mV dec(-1), which is the best spinel-based oxygen evolution reaction (OER) electrocatalysts so far. The excellent performance is attributed to massive oxygen vacancies, amorphous structure, large surface area, and synergistic coupling effects among active species. Density-functional theory calculations reveal that the electronic structure of the catalyst can be modulated in the presence of heteroatoms and MoS2 nanoclusters, and then the energy barriers of intermediates are decreased as well, which enhances the OER performance. This design not only provides a simple strategy to construct amorphous structures with abundant oxygen vacancies using ionic liquid-dopants, but also presents an in-depth insight into the OER mechanism in alkaline solution. |
| 语种 | 英语 |
| WOS记录号 | WOS:000445444600005 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43021]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, Feng; Wang, Qin |
| 作者单位 | 1.Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China 2.Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130022, Jilin, Peoples R China 3.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China 4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jing,Guo, Niankun,Shao, Zhiyu,et al. A Facile Strategy to Construct Amorphous Spinel-Based Electrocatalysts with Massive Oxygen Vacancies Using Ionic Liquid Dopant[J]. ADVANCED ENERGY MATERIALS,2018,8(27). |
| APA | Sun, Jing.,Guo, Niankun.,Shao, Zhiyu.,Huang, Keke.,Li, Yaowen.,...&Wang, Qin.(2018).A Facile Strategy to Construct Amorphous Spinel-Based Electrocatalysts with Massive Oxygen Vacancies Using Ionic Liquid Dopant.ADVANCED ENERGY MATERIALS,8(27). |
| MLA | Sun, Jing,et al."A Facile Strategy to Construct Amorphous Spinel-Based Electrocatalysts with Massive Oxygen Vacancies Using Ionic Liquid Dopant".ADVANCED ENERGY MATERIALS 8.27(2018). |
入库方式： OAI收割
来源：化学研究所
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