Research progresses of CO oxidation catalysts with superior SO_2 resistance
Carbon monoxide (CO) is a common air pollutant in industrial flue gas and motor vehicle exhaust, and its excessive emissions pose a serious threat to human health. Currently, catalytic oxidation technology is widely used for CO emission control. However, sulfur dioxide (SO_2), which is prevalent in...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Energy Environmental Protection
2024-08-01
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| Series: | 能源环境保护 |
| Subjects: | |
| Online Access: | https://eep1987.com/en/article/5100 |
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| Summary: | Carbon monoxide (CO) is a common air pollutant in industrial flue gas and motor vehicle exhaust, and its excessive emissions pose a serious threat to human health. Currently, catalytic oxidation technology is widely used for CO emission control. However, sulfur dioxide (SO_2), which is prevalent in industrial flue gas and motor vehicle exhaust, can cause irreversible poisoning of CO oxidation catalysts, resulting in their severe deactivation. Therefore, improving the SO_2 resistance performance of CO oxidation catalysts has become a research hotspot in the field of environmental catalysis. This review summarizes the SO_2 poisoning mechanism on CO oxidation catalysts, categorizes the methods of characterizing sulfur species on the catalyst surface, and discusses effective strategies to enhance the SO_2 resistance performance of various CO oxidation catalysts. This review will contribute to the understanding of the adsorption and transformation processes of SO_2 on the catalyst surface, revealing the mechanism of the interaction between SO_2 and catalysts, and providing significant references for the design and synthesis of CO oxidation catalysts with superior SO_2 resistance performance. |
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| ISSN: | 2097-4183 |