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Fan M, Zou Q, Liu J, Chen Y, Zhu J, Shen S. Enhanced catalytic oxidation of dichloromethane by a surfactant-modified CeO2@TiO2 core–shell nanostructured catalyst. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Liu B, Yan L, Zhao H, Yang J, Zhao J, Song H, Chou L. Role of cerium dopants in MoVNbO multi-metal oxide catalysts for selective oxidation of ethane. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2021.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wang P, Zhao J, Zhao Q, Ma X, Du X, Hao X, Tang B, Abudula A, Guan G. Microwave-assisted synthesis of manganese oxide catalysts for total toluene oxidation. J Colloid Interface Sci 2021; 607:100-110. [PMID: 34496313 DOI: 10.1016/j.jcis.2021.08.170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/13/2021] [Accepted: 08/25/2021] [Indexed: 01/08/2023]
Abstract
Oxygen vacancy on the heterogeneous catalyst is of great importance to the catalysis of volatile organic compound (VOC) oxidation. Herein, microwave radiation with special energy-excitation is successfully utilized for the post-processing of a series of manganese oxides (MnOx) to generate oxygen vacancies. It is found that the MnOx catalyst with 60 min of microwave radiation demonstrates higher activity for toluene oxidation with a T50% of 210 °C and a T100% of 223 °C, which is attributed to the higher concentration of oxygen vacancies derived from the rich phase interface defects resulted from the microwave radiation. Furthermore, the Mn-MW-60 catalyst possesses excellent thermal stability and water vapor tolerance even under 20 vol% H2O atmospheres within 60 h. In situ DRIFTS analysis verifies that both surface and lattice oxygen species simultaneously participate the oxidation process, and all reactions over different environments follows two different pathways. Meanwhile, it is proposed that those oxygen vacancies derived from microwave radiation could facilitate the rate-controlling step of opening the aromatic ring based on the electron back-donation, thereby leading to the increment of catalytic activity.
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Affiliation(s)
- Peifen Wang
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan; College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Jinggang Zhao
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
| | - Qiang Zhao
- Energy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan; School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, PR China
| | - Xuli Ma
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Xiao Du
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Xiaogang Hao
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Bing Tang
- School of Environmental Science and Technology, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Abuliti Abudula
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
| | - Guoqing Guan
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan; Energy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan.
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Xia X, Lan Y, Li J, Chen C, Xu B, Luo X, Mao X. Facile synthesis of nanoceria by a molten hydroxide method and its photocatalytic properties. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wu J, Zhao X, Xue L, Su H, Zeng S. Barrier effect of SiO2 shell over hollow CeO2/CuO@SiO2 catalysts for broadening temperature window of total CO conversion. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2018.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Catalytic oxidation of CO on mesoporous codoped ceria catalysts: Insights into correlation of physicochemical property and catalytic activity. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2018.11.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Shi L, Gao C, Guo F, Wang Y, Zhang T. Catalytic performance of Zr-doped CuO CeO2 oxides for CO selective oxidation in H2-rich stream. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2019.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Promotion effect of Bi species in Cu/Bi/MCM-41 catalysts for 1,4-butynediol synthesis by ethynylation of formaldehyde. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01561-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Application of graphite screen printed electrode modified with dysprosium tungstate nanoparticles in voltammetric determination of epinephrine in the presence of acetylcholine. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2018.01.010] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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