Approaching the activity limit of CoSe2 for oxygen evolution via Fe doping and Co vacancy
文献类型：期刊论文
| 作者 | Dou, Yuhai1; He, Chun-Ting2; Zhang, Lei1 ; Yin, Huajie1; Al-Mamun, Mohammad1; Ma, Jianmin3; Zhao, Huijun1,4
|
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2020-04-03 |
| 卷号 | 11 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/s41467-020-15498-0 |
| 通讯作者 | Zhao, Huijun(h.zhao@giffith.edu.au) |
| 英文摘要 | Electronic structure engineering lies at the heart of efficient catalyst design. Most previous studies, however, utilize only one technique to modulate the electronic structure, and therefore optimal electronic states are hard to be achieved. In this work, we incorporate both Fe dopants and Co vacancies into atomically thin CoSe2 nanobelts for /coxygen evolution catalysis, and the resulted CoSe2-D-Fe-V-Co exhibits much higher catalytic activity than other defect-activated CoSe2 and previously reported FeCo compounds. Deep characterizations and theoretical calculations identify the most active center of Co-2 site that is adjacent to the VCo-nearest surface Fe site. Fe doping and Co vacancy synergistically tune the electronic states of Co-2 to a near-optimal value, resulting in greatly decreased binding energy of OH* (Delta E-OH) without changing Delta E-O, and consequently lowering the catalytic overpotential. The proper combination of multiple defect structures is promising to unlock the catalytic power of different catalysts for various electrochemical reactions. |
| WOS关键词 | RATIONAL DESIGN ; WATER ; NANOSHEETS ; OXIDATION ; ELECTROCATALYSIS ; SITES ; (OXY)HYDROXIDE ; IDENTIFICATION ; NANOBELTS ; TIO2 |
| 资助项目 | Australian Research Council (ARC)[DP200100965] ; Griffith University[YUDOU 036] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000564272800004 |
| 出版者 | NATURE PUBLISHING GROUP |
| 资助机构 | Australian Research Council (ARC) ; Griffith University |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/102891]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhao, Huijun |
| 作者单位 | 1.Griffith Univ, Ctr Clean Environm & Energy, Gold Coast, Qld 4222, Australia 2.Jiangxi Normal Univ, Coll Chem & Chem Engn, Key Lab Funct Small Organ Mol, Minist Educ, Nanchang 330022, Jiangxi, Peoples R China 3.Hunan Univ, Sch Phys & Elect, Changsha 410082, Hunan, Peoples R China 4.Chinese Acad Sci, Ctr Environm & Energy Nanomat, CAS Ctr Excellence Nanosci, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dou, Yuhai,He, Chun-Ting,Zhang, Lei,et al. Approaching the activity limit of CoSe2 for oxygen evolution via Fe doping and Co vacancy[J]. NATURE COMMUNICATIONS,2020,11. |
| APA | Dou, Yuhai.,He, Chun-Ting.,Zhang, Lei.,Yin, Huajie.,Al-Mamun, Mohammad.,...&Zhao, Huijun.(2020).Approaching the activity limit of CoSe2 for oxygen evolution via Fe doping and Co vacancy.NATURE COMMUNICATIONS,11. |
| MLA | Dou, Yuhai,et al."Approaching the activity limit of CoSe2 for oxygen evolution via Fe doping and Co vacancy".NATURE COMMUNICATIONS 11(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。