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https://hdl.handle.net/2440/136460
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dc.contributor.author | Zhou, Z. | - |
dc.contributor.author | Kong, Y. | - |
dc.contributor.author | Tan, H. | - |
dc.contributor.author | Huang, Q. | - |
dc.contributor.author | Wang, C. | - |
dc.contributor.author | Pei, Z. | - |
dc.contributor.author | Wang, H. | - |
dc.contributor.author | Liu, Y. | - |
dc.contributor.author | Wang, Y. | - |
dc.contributor.author | Li, S. | - |
dc.contributor.author | Liao, X. | - |
dc.contributor.author | Yan, W. | - |
dc.contributor.author | Zhao, S. | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Advanced Materials, 2022; 34(16) | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.issn | 1521-4095 | - |
dc.identifier.uri | https://hdl.handle.net/2440/136460 | - |
dc.description.abstract | Electrocatalytic hydrogen peroxide (H₂O₂) synthesis via the two-electron oxygen reduction reaction (2e ORR) pathway is becoming increasingly important due to the green production process. Here, cationic vacancies on nickel phosphide, as a proof-of-concept to regulate the catalyst's physicochemical properties, are introduced for efficient H₂O₂ electrosynthesis. The as-fabricated Ni cationic vacancies (VNi)-enriched Ni₂–ₓP-VNi electrocatalyst exhibits remarkable 2e ORR performance with H₂O₂ molar fraction of >95% and Faradaic efficiencies of >90% in all pH conditions under a wide range of applied potentials. Impressively, the as-created VNi possesses superb long-term durability for over 50 h, suppassing all the recently reported catalysts for H₂O₂ electrosynthesis. Operando X-ray absorption near-edge spectroscopy (XANES) and synchrotron Fourier transform infrared (SR-FTIR) combining theoretical calculations reveal that the excellent catalytic performance originates from the VNi -induced geometric and electronic structural optimization, thus promoting oxygen adsorption to the 2e ORR favored "end-on" configuration. It is believed that the demonstrated cation vacancy engineering is an effective strategy toward creating active heterogeneous catalysts with atomic precision. | - |
dc.description.statementofresponsibility | Zheng Zhou, Yuan Kong, Hao Tan, Qianwei Huang, Cheng Wang, Zengxia Pei, Haozhu Wang, Yangyang Liu, Yihan Wang, Sai Li, Xiaozhou Liao, Wensheng Yan, and Shenlong Zhao | - |
dc.language.iso | en | - |
dc.publisher | Wiley-VCH GmbH | - |
dc.rights | © 2022 Wiley-VCH GmbH | - |
dc.source.uri | http://dx.doi.org/10.1002/adma.202106541 | - |
dc.subject | cation vacancy engineering | - |
dc.subject | electrocatalysis | - |
dc.subject | green production | - |
dc.subject | hydrogen peroxide production | - |
dc.subject | oxygen reduction reaction | - |
dc.title | Cation-Vacancy-Enriched Nickel Phosphide for Efficient Electrosynthesis of Hydrogen Peroxides | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1002/adma.202106541 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Wang, C. [0000-0003-2837-877X] | - |
Appears in Collections: | Chemical Engineering publications |
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