Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency
Catalytic combustion is an efficient and economic technology for eliminating volatile organic compounds (VOCs) in industrial environments. This study evaluated the synergistic catalytic properties of bimetallic oxides, viz., CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or N...
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2025-03-01
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| author | Yuwei Tang Xu Yang Qinglong Zhang Dongmei Lv Shufeng Zuo Jing Li |
| author_facet | Yuwei Tang Xu Yang Qinglong Zhang Dongmei Lv Shufeng Zuo Jing Li |
| author_sort | Yuwei Tang |
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| description | Catalytic combustion is an efficient and economic technology for eliminating volatile organic compounds (VOCs) in industrial environments. This study evaluated the synergistic catalytic properties of bimetallic oxides, viz., CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni), for improving the combustion efficiency of toluene. The CoM/γ-Al<sub>2</sub>O<sub>3</sub> catalysts were prepared by an impregnation method and characterized by using advanced techniques. Among the bimetallic catalysts, CoCu/γ-Al<sub>2</sub>O<sub>3</sub> exhibited the best performance. The findings revealed that owing to the strong synergistic interaction between Cu, Co, and the γ-Al<sub>2</sub>O<sub>3</sub> support, the active species in the CoCu/γ-Al<sub>2</sub>O<sub>3</sub> catalyst were effectively stabilized, and they significantly enhanced the redox performance and acidity of the catalyst, demonstrating superior catalytic activity and sulfur resistance. Conversely, the CoFe/γ-Al<sub>2</sub>O<sub>3</sub> catalyst performed poorly, exhibiting a significant decline in its activity owing to sulfur poisoning. The insights from this study provide theoretical support for designing efficient, sulfur-resistant catalysts that are crucial to reducing industrial VOC emissions. |
| format | Article |
| id | doaj-art-eae858e0dd88466a8c553986bcdeadd7 |
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| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-eae858e0dd88466a8c553986bcdeadd72025-08-20T02:06:12ZengMDPI AGMolecules1420-30492025-03-01305118810.3390/molecules30051188Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion EfficiencyYuwei Tang0Xu Yang1Qinglong Zhang2Dongmei Lv3Shufeng Zuo4Jing Li5Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaZhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, ChinaShandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaCatalytic combustion is an efficient and economic technology for eliminating volatile organic compounds (VOCs) in industrial environments. This study evaluated the synergistic catalytic properties of bimetallic oxides, viz., CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni), for improving the combustion efficiency of toluene. The CoM/γ-Al<sub>2</sub>O<sub>3</sub> catalysts were prepared by an impregnation method and characterized by using advanced techniques. Among the bimetallic catalysts, CoCu/γ-Al<sub>2</sub>O<sub>3</sub> exhibited the best performance. The findings revealed that owing to the strong synergistic interaction between Cu, Co, and the γ-Al<sub>2</sub>O<sub>3</sub> support, the active species in the CoCu/γ-Al<sub>2</sub>O<sub>3</sub> catalyst were effectively stabilized, and they significantly enhanced the redox performance and acidity of the catalyst, demonstrating superior catalytic activity and sulfur resistance. Conversely, the CoFe/γ-Al<sub>2</sub>O<sub>3</sub> catalyst performed poorly, exhibiting a significant decline in its activity owing to sulfur poisoning. The insights from this study provide theoretical support for designing efficient, sulfur-resistant catalysts that are crucial to reducing industrial VOC emissions.https://www.mdpi.com/1420-3049/30/5/1188bimetallic oxidestoluene combustionsulfur resistancesynergistic effectacidity effect |
| spellingShingle | Yuwei Tang Xu Yang Qinglong Zhang Dongmei Lv Shufeng Zuo Jing Li Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency Molecules bimetallic oxides toluene combustion sulfur resistance synergistic effect acidity effect |
| title | Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency |
| title_full | Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency |
| title_fullStr | Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency |
| title_full_unstemmed | Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency |
| title_short | Comprehensive Analysis of the Synergistic Effects of Bimetallic Oxides in CoM/γ-Al<sub>2</sub>O<sub>3</sub> (M = Cu, Fe, or Ni) Catalysts for Enhancing Toluene Combustion Efficiency |
| title_sort | comprehensive analysis of the synergistic effects of bimetallic oxides in com γ al sub 2 sub o sub 3 sub m cu fe or ni catalysts for enhancing toluene combustion efficiency |
| topic | bimetallic oxides toluene combustion sulfur resistance synergistic effect acidity effect |
| url | https://www.mdpi.com/1420-3049/30/5/1188 |
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