Influence of Rare-Earth Promoters (Ce, Zr and La) on Catalytic Performance of Copper-Based Catalyst in Toluene Oxidation
文献类型：期刊论文
| 作者 | Hu, Guangtao2,3; Zhang, Zirui1; Wang, Chang'an3; Li, Guojie2; Zhou, Dandan2; Wang, Jinshi2,3; Che, Defu3; Kang, Running1 ; Kang RN(康润宁)
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| 刊名 | COMBUSTION SCIENCE AND TECHNOLOGY
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| 出版日期 | 2023-11-29 |
| 页码 | 19 |
| 关键词 | Copper rare-earth VOCs oxidation toluene IR spectra |
| ISSN号 | 0010-2202 |
| DOI | 10.1080/00102202.2023.2288671 |
| 通讯作者 | Che, Defu(dfche@mail.xjtu.edu.cn) ; Kang, Running(kangrunning@imech.ac.cn) |
| 英文摘要 | Copper-infused mixed metal oxides have been identified as powerful catalysts for eliminating volatile organic compounds (VOCs) due to their widespread availability and cost-effectiveness. The copper metal oxide catalysts were synthesized using the sol-gel method and promoted with rare earth elements, La, Ce, and Zr, to catalyze the oxidation of toluene. Compared to all tested catalysts, CuLaOx demonstrates the least activity igniting activity even though La appears to enhance copper dispersion and generate a large number of oxygen species on the surface. CuZrOx displays remarkable thermal stability, resulting in a minimal amount of lattice oxygen participating in toluene oxidation. The introduction of Ce into the CuCeOx catalyst enhances its activity significantly, attributed to the exceptional reducibility of copper species. Therefore, the TOF for the CuCeOx, CuLaOx and CuZrOx catalysts are 9.23-24.8 x 10-3 s-1, 1.29-6.22 x 10-3 s-1, and 1.05-10.03 x 10-3 s-1 at 200-400 degrees C, respectively. The infrared spectra, observed at varying temperatures during toluene oxidation, were presented. Interestingly, all catalysts demonstrated a comparable reaction pathway. The catalytic oxidation mechanism is expected to proceed via the intermediates of toluene-alkoxide-aldehydic-carboxylic acid, ultimately culminating in complete degradation to CO2 and H2O. This study establishes a theoretical foundation for the judicious selection of suitable rare earth elements as promoters, enabling the development of copper-based catalysts for efficient volatile organic compound (VOC) removal in industrial settings. |
| WOS关键词 | SELF-SUSTAINED COMBUSTION ; COBALT CATALYSTS ; OXIDE ; METHANE ; FACILE |
| 资助项目 | YLU-DNL Fund[2021004] ; Key R&D Program of ShaanXi Province[2023-YBSF-442] ; National Natural Science Foundation of China[52106275] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001120786400001 |
| 资助机构 | YLU-DNL Fund ; Key R&D Program of ShaanXi Province ; National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/93616]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Che, Defu; Kang, Running; Kang RN(康润宁) |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China 2.Yulin Univ, Sch Energy Engn, Yulin, Peoples R China 3.Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Guangtao,Zhang, Zirui,Wang, Chang'an,et al. Influence of Rare-Earth Promoters (Ce, Zr and La) on Catalytic Performance of Copper-Based Catalyst in Toluene Oxidation[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2023:19. |
| APA | Hu, Guangtao.,Zhang, Zirui.,Wang, Chang'an.,Li, Guojie.,Zhou, Dandan.,...&Kang RN.(2023).Influence of Rare-Earth Promoters (Ce, Zr and La) on Catalytic Performance of Copper-Based Catalyst in Toluene Oxidation.COMBUSTION SCIENCE AND TECHNOLOGY,19. |
| MLA | Hu, Guangtao,et al."Influence of Rare-Earth Promoters (Ce, Zr and La) on Catalytic Performance of Copper-Based Catalyst in Toluene Oxidation".COMBUSTION SCIENCE AND TECHNOLOGY (2023):19. |
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来源：力学研究所
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