Suspect and target screening of emerging pesticides and their transformation products in an urban river using LC-QTOF-MS
文献类型：期刊论文
| 作者 | Zhang, Yangping; Zhang, Haifeng; Wang, Juan ; Yu, Zhiyong; Li, Hongyan; Yang, Min
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-12-10 |
| 卷号 | 60期号:48页码:25296-25301 |
| 关键词 | coordination environment Fe-N-C oxygen reduction reaction sacrificial bond single-atom catalyst |
| ISSN号 | 1433-7851 |
| 英文摘要 | Atomically dispersed metal-nitrogen sites show great prospect for the oxygen reduction reaction (ORR), whereas the unsatisfactory adsorption-desorption behaviors of oxygenated intermediates on the metal centers impede improvement of the ORR performance. We propose a new conceptual strategy of introducing sacrificial bonds to remold the local coordination of Fe-N-x sites, via controlling the dynamic transformation of the Fe-S bonds in the Fe-N-C single-atom catalyst. Spectroscopic and theoretical results reveal that the selective cleavage of the sacrificial Fe-S bonds induces the incorporation of the electron-withdrawing oxidized sulfur on the Fe centers. The newly functionalized moieties endow the catalyst with superior ORR activity and remarkable stability, owing to the reduced electron localization around the Fe centers facilitating the desorption of ORR intermediates. These findings provide a unique perspective for precisely controlling the coordination structure of single-atom materials to optimize their activity. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46865]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sino Danish Ctr Educ & Res, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, State Key Lab Environm Aquat Chem, Res Ctr EcoEnvironm Sci, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Key Lab DrinkingWater Sci & Technol, Res Ctr EcoEnvironm Sci, Beijing 100085, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yangping,Zhang, Haifeng,Wang, Juan,et al. Suspect and target screening of emerging pesticides and their transformation products in an urban river using LC-QTOF-MS[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,60(48):25296-25301. |
| APA | Zhang, Yangping,Zhang, Haifeng,Wang, Juan,Yu, Zhiyong,Li, Hongyan,&Yang, Min.(2021).Suspect and target screening of emerging pesticides and their transformation products in an urban river using LC-QTOF-MS.SCIENCE OF THE TOTAL ENVIRONMENT,60(48),25296-25301. |
| MLA | Zhang, Yangping,et al."Suspect and target screening of emerging pesticides and their transformation products in an urban river using LC-QTOF-MS".SCIENCE OF THE TOTAL ENVIRONMENT 60.48(2021):25296-25301. |
入库方式： OAI收割
来源：生态环境研究中心
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