A Tale of Two Sites: Neighboring Atomically Dispersed Pt Sites Cooperatively Remove Trace H-2 in CO-Rich Stream
文献类型：期刊论文
| 作者 | Rao, Yi1; Wu, Yutong1; Dai, Xueya2,3; Zhang, Ya-Wen4; Qin, Gaowu1,5; Qi, Wei2,3; Li, Song1,6 |
| 刊名 | SMALL
 |
| 出版日期 | 2022-10-18 |
| 页码 | 9 |
| 关键词 | CO chemical purification densely populated PROX single-atom catalysts synergistic catalysis |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.202204611 |
| 通讯作者 | Qi, Wei(wqi@imr.ac.cn) ; Li, Song(lis@atm.neu.edu.cn) |
| 英文摘要 | Single-atom catalysts (SACs) exhibit distinct catalytic behavior compared with nano-catalysts because of their unique atomic coordination environment without the direct bonding between identical metal centers. How these single atom sites interact with each other and influence the catalytic performance remains unveiled as designing densely populated but stable SACs is still an enormous challenge to date. Here, a fabrication strategy for embedding high areal density single-atom Pt sites via a defect engineering approach is demonstrated. Similar to the synergistic mechanism in binuclear homogeneous catalysts, from both experimental and theoretical results, it is proved that electrons would redistribute between the two oxo-bridged paired Pt sites after hydrogen adsorption on one site, which enables the other Pt site to have high CO oxidation activity at mild-temperature. The dynamic electronic interaction between neighboring Pt sites is found to be distance dependent. These new SACs with abundant Pt-O-Pt paired structures can improve the efficiency of CO chemical purification. |
| 资助项目 | National Key Research and Development Program of China[2021YFB3801600] ; National Natural Science Foundation of China[51971059] ; National Natural Science Foundation of China[22072163] ; National Natural Science Foundation of China[21761132010] ; Fundamental Research Funds for the Central Universities[N2202012] ; China BaoWu Low Carbon Metallurgical Innovation Foundation[BWLCF202113] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000869636800001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; China BaoWu Low Carbon Metallurgical Innovation Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176217]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Qi, Wei; Li, Song |
| 作者单位 | 1.Northeastern Univ, Key Lab Anisotropy & Texture Mat MoE, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China 5.Northeastern Univ, Res Ctr Metall Wires, Shenyang 110819, Peoples R China 6.Inst Frontier Technol Low Carbon Steelmaking, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rao, Yi,Wu, Yutong,Dai, Xueya,et al. A Tale of Two Sites: Neighboring Atomically Dispersed Pt Sites Cooperatively Remove Trace H-2 in CO-Rich Stream[J]. SMALL,2022:9. |
| APA | Rao, Yi.,Wu, Yutong.,Dai, Xueya.,Zhang, Ya-Wen.,Qin, Gaowu.,...&Li, Song.(2022).A Tale of Two Sites: Neighboring Atomically Dispersed Pt Sites Cooperatively Remove Trace H-2 in CO-Rich Stream.SMALL,9. |
| MLA | Rao, Yi,et al."A Tale of Two Sites: Neighboring Atomically Dispersed Pt Sites Cooperatively Remove Trace H-2 in CO-Rich Stream".SMALL (2022):9. |
入库方式： OAI收割
来源：金属研究所
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