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Zhang B, Chen J, Li Y, Zhu Y, Li S, Zhu F, Gao X, Liao S, Wang S, Xiao W, Shi S, Chen C. Engineering of Pore Design and Oxygen Vacancy on High-Entropy Oxides by a Microenvironment Tailoring Strategy. Inorg Chem 2024; 63:5689-5700. [PMID: 38485494 DOI: 10.1021/acs.inorgchem.4c00147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
High-entropy oxides (HEOs) exhibit abundant structural diversity due to cationic and anionic sublattices with independence, rendering them superior in catalytic applications compared to monometallic oxides. Nevertheless, the conventional high-temperature calcination approach undermines the porosity and reduces the exposure of active sites (such as oxygen vacancies, OVs) in HEOs, leading to diminished catalytic efficiency. Herein, we fabricate a series of HEOs with a large surface area utilizing a microenvironment modulation strategy (m-NiMgCuZnCo: 86 m2/g, m-MnCuCoNiFe: 67 m2/g, and m-FeCrCoNiMn: 54 m2/g). The enhanced porosity in m-NiMgCuZnCo facilitates the presentation of numerous OVs, exhibiting an exceptional catalytic performance. This tactic creates inspiration for designing HEOs with rich porosity and active species with vast potential applications.
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Affiliation(s)
- Bingzhen Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
- School of Power and Mechanical Engineering, The Institute of Technological Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Jian Chen
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Ying Li
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Yahui Zhu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Shengchen Li
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Fangyu Zhu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Xiahong Gao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Sheng Liao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Shuhua Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Weiming Xiao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Shunli Shi
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Chao Chen
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
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Yang Z, Wang L, Fang M, Xia X, Liu Y. Efficient spatial separation of charge carriers over CoS1+x cocatalyst modified MIL-88B (Fe)/ZnIn2S4 S-scheme heterojunctions for photoredox dual reaction and insight into the charge-transfer mechanism. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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