Tracking Structural Self-Reconstruction and Identifying True Active Sites toward Cobalt Oxychloride Precatalyst of Oxygen Evolution Reaction
文献类型：期刊论文
| 作者 | Jiang, HL; He, Q; Li, XY; Su, XZ; Zhang, YK; Chen, SM; Zhang, S; Zhang, GZ; Jiang, J; Luo, Y |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2019 |
| 卷号 | 31期号:8页码:— |
| 关键词 | LAYERED DOUBLE HYDROXIDE WATER OXIDATION CATALYSTS ELECTROCATALYSTS NANOSHEETS PHOSPHIDES ARRAYS OXIDES |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201805127 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Unravelling the intrinsic mechanism of electrocatalytic oxygen evolution reaction (OER) by use of heterogeneous catalysts is highly desirable to develop related energy conversion technologies. Albeit dynamic self-reconstruction of the catalysts during OER is extensively observed, it is still highly challenging to operando probe the reconstruction and precisely identify the true catalytically active components. Here, a new class of OER precatalyst, cobalt oxychloride (Co-2(OH)(3)Cl) with unique features that allow a gradual phase reconstruction during OER due to the etching of lattice anion is demonstrated. The reconstruction continuously boosts OER activities. The reconstruction-derived component delivers remarkable performance in both alkaline and neutral electrolytes. Operando synchrotron radiation-based X-ray spectroscopic characterization together with density functional theory calculations discloses that the etching of lattice Cl- serves as the key to trigger the reconstruction and the boosted catalytic performance roots in the atomic-level coordinatively unsaturated sites (CUS). This work establishes fundamental understanding on the OER mechanism associated with self-reconstruction of heterogeneous catalysts. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31882]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Sci & Technol China, CAS Ctr Excellence Nanosci, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China; 2.Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Jialuo Rd 2019, Shanghai 201800, Peoples R China; 4.Rice Univ, Dept Mat Sci & Nano Engn, Houston, TX 77005 USA |
| 推荐引用方式 GB/T 7714 | Jiang, HL,He, Q,Li, XY,et al. Tracking Structural Self-Reconstruction and Identifying True Active Sites toward Cobalt Oxychloride Precatalyst of Oxygen Evolution Reaction[J]. ADVANCED MATERIALS,2019,31(8):—. |
| APA | Jiang, HL.,He, Q.,Li, XY.,Su, XZ.,Zhang, YK.,...&Song, L.(2019).Tracking Structural Self-Reconstruction and Identifying True Active Sites toward Cobalt Oxychloride Precatalyst of Oxygen Evolution Reaction.ADVANCED MATERIALS,31(8),—. |
| MLA | Jiang, HL,et al."Tracking Structural Self-Reconstruction and Identifying True Active Sites toward Cobalt Oxychloride Precatalyst of Oxygen Evolution Reaction".ADVANCED MATERIALS 31.8(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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