{"title":"磷诱导的电子泵增强O2活化电催化生产H2O2。","authors":"Yingbi Chen, Qingguo Feng, Yu Bai, Meng Wang, Yuchao Wang, Peiyao Yang, Danni Deng, Xinran Zheng, Jiabi Jiang, Haitao Zheng, Guozhao Fang, Yi Zeng*, Xiang Xiong and Yongpeng Lei*, ","doi":"10.1021/acsnano.5c08610","DOIUrl":null,"url":null,"abstract":"<p >Electrochemical two-electron oxygen reduction reaction (2e<sup>–</sup> ORR) to produce hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) is attractive, but poor H<sub>2</sub>O<sub>2</sub> selectivity and activity need to be overcome. Herein, a phosphorus-induced electron pump is demonstrated. The H<sub>2</sub>O<sub>2</sub> selectivity reaches >90% (93.5% at 0.5 V) in the potential range of 0.2∼0.7 V. The Faradaic efficiency achieves 94.2% at 0.6 V. In situ Raman experiment and density functional theory calculation indicate that the O<sub>2</sub> adsorption and activation are enhanced. The *OOH intermediates are formed at a more positive potential. Furthermore, the universal mechanism of the electron pump is extended. At last, the potential to degrade antibiotics, <i>Escherichia coli</i>, etc., on site is confirmed. This work displays that the phosphorus-induced electron pump activates O<sub>2</sub>, which provides an insight into the electrocatalytic 2e<sup>–</sup> ORR.</p>","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"19 31","pages":"28801–28812"},"PeriodicalIF":16.0000,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Phosphorus-Induced Electron Pump Enhances O2 Activation for Electrocatalytic H2O2 Production\",\"authors\":\"Yingbi Chen, Qingguo Feng, Yu Bai, Meng Wang, Yuchao Wang, Peiyao Yang, Danni Deng, Xinran Zheng, Jiabi Jiang, Haitao Zheng, Guozhao Fang, Yi Zeng*, Xiang Xiong and Yongpeng Lei*, \",\"doi\":\"10.1021/acsnano.5c08610\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Electrochemical two-electron oxygen reduction reaction (2e<sup>–</sup> ORR) to produce hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) is attractive, but poor H<sub>2</sub>O<sub>2</sub> selectivity and activity need to be overcome. Herein, a phosphorus-induced electron pump is demonstrated. The H<sub>2</sub>O<sub>2</sub> selectivity reaches >90% (93.5% at 0.5 V) in the potential range of 0.2∼0.7 V. The Faradaic efficiency achieves 94.2% at 0.6 V. In situ Raman experiment and density functional theory calculation indicate that the O<sub>2</sub> adsorption and activation are enhanced. The *OOH intermediates are formed at a more positive potential. Furthermore, the universal mechanism of the electron pump is extended. At last, the potential to degrade antibiotics, <i>Escherichia coli</i>, etc., on site is confirmed. This work displays that the phosphorus-induced electron pump activates O<sub>2</sub>, which provides an insight into the electrocatalytic 2e<sup>–</sup> ORR.</p>\",\"PeriodicalId\":21,\"journal\":{\"name\":\"ACS Nano\",\"volume\":\"19 31\",\"pages\":\"28801–28812\"},\"PeriodicalIF\":16.0000,\"publicationDate\":\"2025-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Nano\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsnano.5c08610\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Nano","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsnano.5c08610","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Phosphorus-Induced Electron Pump Enhances O2 Activation for Electrocatalytic H2O2 Production
Electrochemical two-electron oxygen reduction reaction (2e– ORR) to produce hydrogen peroxide (H2O2) is attractive, but poor H2O2 selectivity and activity need to be overcome. Herein, a phosphorus-induced electron pump is demonstrated. The H2O2 selectivity reaches >90% (93.5% at 0.5 V) in the potential range of 0.2∼0.7 V. The Faradaic efficiency achieves 94.2% at 0.6 V. In situ Raman experiment and density functional theory calculation indicate that the O2 adsorption and activation are enhanced. The *OOH intermediates are formed at a more positive potential. Furthermore, the universal mechanism of the electron pump is extended. At last, the potential to degrade antibiotics, Escherichia coli, etc., on site is confirmed. This work displays that the phosphorus-induced electron pump activates O2, which provides an insight into the electrocatalytic 2e– ORR.
期刊介绍：
ACS Nano, published monthly, serves as an international forum for comprehensive articles on nanoscience and nanotechnology research at the intersections of chemistry, biology, materials science, physics, and engineering. The journal fosters communication among scientists in these communities, facilitating collaboration, new research opportunities, and advancements through discoveries. ACS Nano covers synthesis, assembly, characterization, theory, and simulation of nanostructures, nanobiotechnology, nanofabrication, methods and tools for nanoscience and nanotechnology, and self- and directed-assembly. Alongside original research articles, it offers thorough reviews, perspectives on cutting-edge research, and discussions envisioning the future of nanoscience and nanotechnology.
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