The formation of (nife)s-2 pyrite mesocrystals as efficient pre-catalysts for water oxidation
文献类型：期刊论文
| 作者 | Ni, Bing1; He, Ting1; Wang, Jia-ou2; Zhang, Simin1; Ouyang, Chen1; Long, Yong1; Zhuang, Jing1; Wang, Xun1 |
| 刊名 | Chemical science
 |
| 出版日期 | 2018-03-14 |
| 卷号 | 9期号:10页码:2762-2767 |
| ISSN号 | 2041-6520 |
| DOI | 10.1039/c7sc05452a |
| 通讯作者 | Wang, xun(wangxun@mail.tsinghua.edu.cn) |
| 英文摘要 | Designing intricate structures and searching for functional materials has attracted wide interest in nanoscience. herein we have fabricated (nife)s-2 pyrite mesocrystals in the form of nearly-single crystalline porous cubes, and studied their self-optimization to realize efficient activity toward water oxidation under electrochemical conditions. the growth mechanism of the mesocrystals was a non-classical mechanism, which was initiated by the formation of a large quantity of small nickel sulfide clusters, followed by the aggregation and transformation of these small clusters in an oriented manner. when these mesocrystals were tested for water oxidation under electrocatalytic conditions, the materials served as pre-catalysts and immediately self-optimized to form amorphous s-doped metal (oxy) hydroxides, which are the real catalytically active materials. as a result, the observed overpotential to reach a current density of 10 ma cm(-2) on glassy carbon electrodes was less than 260 mv. the growth mechanism studied here may provide opportunities for constructing intricate sulfide structures, and the self-optimization process during water oxidation can inspire new thoughts on electrocatalysis. |
| WOS关键词 | OXYGEN EVOLUTION REACTION ; SINGLE-CRYSTALS ; ELECTROCATALYSTS ; CRYSTALLIZATION ; SUPERSTRUCTURES ; NANOPLATELETS ; NANOCRYSTALS ; BIOMINERALS ; ALIGNMENT ; OXIDES |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000431100300014 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177588 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wang, Xun |
| 作者单位 | 1.Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ni, Bing,He, Ting,Wang, Jia-ou,et al. The formation of (nife)s-2 pyrite mesocrystals as efficient pre-catalysts for water oxidation[J]. Chemical science,2018,9(10):2762-2767. |
| APA | Ni, Bing.,He, Ting.,Wang, Jia-ou.,Zhang, Simin.,Ouyang, Chen.,...&Wang, Xun.(2018).The formation of (nife)s-2 pyrite mesocrystals as efficient pre-catalysts for water oxidation.Chemical science,9(10),2762-2767. |
| MLA | Ni, Bing,et al."The formation of (nife)s-2 pyrite mesocrystals as efficient pre-catalysts for water oxidation".Chemical science 9.10(2018):2762-2767. |
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来源：高能物理研究所
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