Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene
A series of hetero-metal (Ni, Mn, and Cu) doped Co-based catalysts were prepared by a unipolar pulse electro-deposition (UPED) method and applied for the catalytic combustion of toluene. It is found that hetero-metal doping significantly influenced the morphology and surface elemental compositions o...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2020-01-01
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| Series: | Carbon Resources Conversion |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2588913320300065 |
| _version_ | 1831811219091095552 |
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| author | Jing Wang Peifen Wang Qiang Zhao Jin Shi Tao Yu Xiao Du Xiaogang Hao Abuliti Abudula Guoqing Guan |
| author_facet | Jing Wang Peifen Wang Qiang Zhao Jin Shi Tao Yu Xiao Du Xiaogang Hao Abuliti Abudula Guoqing Guan |
| author_sort | Jing Wang |
| collection | DOAJ |
| description | A series of hetero-metal (Ni, Mn, and Cu) doped Co-based catalysts were prepared by a unipolar pulse electro-deposition (UPED) method and applied for the catalytic combustion of toluene. It is found that hetero-metal doping significantly influenced the morphology and surface elemental compositions of Co-based catalysts, and the increase in the contents of Ni and Mn elements made a negative influence on the catalyst structure. H2-TPR and O2-TPD analysis results suggested that the hetero-metal doping enhanced the low temperature reducibility and resulted in the formation of lattice defects, which were favorable to generate more easily reducible species and facilitate the oxygen mobility, thereby improved the performance for the catalytic combustion of toluene. Especially, the Co-Cu/NF catalyst performed the best catalytic activity with the lowest toluene conversion temperature of T90 at 248 °C, which should be contributed by its low-temperature reducibility, increased surface and lattice oxygen species, and high content of active Co3+ species promoted by the interaction of the mixed metal oxides. Moreover, the Co-Cu/NF also performed excellent catalytic stability and high selectivity to CO2 in the presence and absence of water vapor for the catalytic combustion of toluene for a long term. |
| first_indexed | 2024-12-22T21:13:38Z |
| format | Article |
| id | doaj.art-0362f554eeca4cf4916651eb2893c1d4 |
| institution | Directory Open Access Journal |
| issn | 2588-9133 |
| language | English |
| last_indexed | 2024-12-22T21:13:38Z |
| publishDate | 2020-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Carbon Resources Conversion |
| spelling | doaj.art-0362f554eeca4cf4916651eb2893c1d42022-12-21T18:12:25ZengKeAi Communications Co., Ltd.Carbon Resources Conversion2588-91332020-01-01395103Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of tolueneJing Wang0Peifen Wang1Qiang Zhao2Jin Shi3Tao Yu4Xiao Du5Xiaogang Hao6Abuliti Abudula7Guoqing Guan8Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Aomori, JapanGraduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Aomori, JapanGraduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Aomori, JapanEnergy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan; School of Mechanical Engineering, Shanghai Jiaotong University, 800 Dongchuan RD. Minhang District, Shanghai 200240, ChinaGraduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Aomori, JapanDepartment of Chemical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of ChinaDepartment of Chemical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People’s Republic of ChinaGraduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Aomori, JapanGraduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Aomori, Japan; Energy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan; Corresponding author at: Energy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan.A series of hetero-metal (Ni, Mn, and Cu) doped Co-based catalysts were prepared by a unipolar pulse electro-deposition (UPED) method and applied for the catalytic combustion of toluene. It is found that hetero-metal doping significantly influenced the morphology and surface elemental compositions of Co-based catalysts, and the increase in the contents of Ni and Mn elements made a negative influence on the catalyst structure. H2-TPR and O2-TPD analysis results suggested that the hetero-metal doping enhanced the low temperature reducibility and resulted in the formation of lattice defects, which were favorable to generate more easily reducible species and facilitate the oxygen mobility, thereby improved the performance for the catalytic combustion of toluene. Especially, the Co-Cu/NF catalyst performed the best catalytic activity with the lowest toluene conversion temperature of T90 at 248 °C, which should be contributed by its low-temperature reducibility, increased surface and lattice oxygen species, and high content of active Co3+ species promoted by the interaction of the mixed metal oxides. Moreover, the Co-Cu/NF also performed excellent catalytic stability and high selectivity to CO2 in the presence and absence of water vapor for the catalytic combustion of toluene for a long term.http://www.sciencedirect.com/science/article/pii/S2588913320300065TolueneCatalytic combustionHetero-metal dopingLattice defectsExcellent stabilityhigh CO2 selectivity |
| spellingShingle | Jing Wang Peifen Wang Qiang Zhao Jin Shi Tao Yu Xiao Du Xiaogang Hao Abuliti Abudula Guoqing Guan Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene Carbon Resources Conversion Toluene Catalytic combustion Hetero-metal doping Lattice defects Excellent stability high CO2 selectivity |
| title | Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene |
| title_full | Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene |
| title_fullStr | Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene |
| title_full_unstemmed | Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene |
| title_short | Stable hetero-metal doped Co-based catalysts prepared by electrodeposition method for low temperature combustion of toluene |
| title_sort | stable hetero metal doped co based catalysts prepared by electrodeposition method for low temperature combustion of toluene |
| topic | Toluene Catalytic combustion Hetero-metal doping Lattice defects Excellent stability high CO2 selectivity |
| url | http://www.sciencedirect.com/science/article/pii/S2588913320300065 |
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