Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2
Developing efficient, stable, and inexpensive catalysts for the preferential CO oxidation in H2 (CO-PROX) over a wide temperature range in the presence of CO2 and H2O is indispensable for the hydrogen purification process. Herein, CuO was introduced to the CeMnO2-supported Pt catalyst to modulate th...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-06-01
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| Series: | Carbon Future |
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| Online Access: | https://www.sciopen.com/article/10.26599/CF.2025.9200038 |
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| author | Jianlin Cao Tao Xing Zongzhuang Sun Sheng Wei Jiaqi Wang Lexin Mao Tao Liu Zhi Li Yongxiao Tuo Xin Zhou Hao Yan Yibin Liu Xiang Feng Chaohe Yang De Chen |
| author_facet | Jianlin Cao Tao Xing Zongzhuang Sun Sheng Wei Jiaqi Wang Lexin Mao Tao Liu Zhi Li Yongxiao Tuo Xin Zhou Hao Yan Yibin Liu Xiang Feng Chaohe Yang De Chen |
| author_sort | Jianlin Cao |
| collection | DOAJ |
| description | Developing efficient, stable, and inexpensive catalysts for the preferential CO oxidation in H2 (CO-PROX) over a wide temperature range in the presence of CO2 and H2O is indispensable for the hydrogen purification process. Herein, CuO was introduced to the CeMnO2-supported Pt catalyst to modulate the oxygen activation capacity and provide the available number of active sites in CO-PROX. One part of the CuO species doped into CeO2 strongly interacts with Ce, thus enhancing the oxygen transfer capacity of the catalyst. The other part of CuO species located on the surface of the catalyst provides extra Cu+ sites available for low-temperature CO adsorption. This synergistic interaction with Pt sites further enhances CO and O2 activation, broadening the temperature window of high activity. The optimal Pt-10CuO/CeMnO2 catalyst exhibits complete CO conversion (CO/O2 ratio of 1:1) within the practical temperature range of 130–190 °C, even in the presence of CO2 and H2O, and remains stable at 150 °C for 76 h testing without any deactivation. This work will give a novel approach for the design of highly efficient inexpensive catalysts for industrial preferential oxidation of CO in H2, especially in the presence of CO2 and H2O. |
| format | Article |
| id | doaj-art-28ecea2a862f4ebbbfddcb922d790ba8 |
| institution | OA Journals |
| issn | 2960-0561 2960-0421 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Carbon Future |
| spelling | doaj-art-28ecea2a862f4ebbbfddcb922d790ba82025-08-20T02:22:15ZengTsinghua University PressCarbon Future2960-05612960-04212025-06-0122920003810.26599/CF.2025.9200038Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2Jianlin Cao0Tao Xing1Zongzhuang Sun2Sheng Wei3Jiaqi Wang4Lexin Mao5Tao Liu6Zhi Li7Yongxiao Tuo8Xin Zhou9https://orcid.org/0000-0002-5921-4260Hao Yan10Yibin Liu11Xiang Feng12https://orcid.org/0000-0001-7299-5690Chaohe Yang13De Chen14https://orcid.org/0000-0002-5609-5825State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaShandong Energy Group Co., Ltd., Jinan 250000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaShandong Energy Group Co., Ltd., Jinan 250000, ChinaShandong Energy Group Co., Ltd., Jinan 250000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaDepartment of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266000, ChinaDepartment of Chemical Engineering, Norwegian University of Science and Technology, Trondheim 7491, NorwayDeveloping efficient, stable, and inexpensive catalysts for the preferential CO oxidation in H2 (CO-PROX) over a wide temperature range in the presence of CO2 and H2O is indispensable for the hydrogen purification process. Herein, CuO was introduced to the CeMnO2-supported Pt catalyst to modulate the oxygen activation capacity and provide the available number of active sites in CO-PROX. One part of the CuO species doped into CeO2 strongly interacts with Ce, thus enhancing the oxygen transfer capacity of the catalyst. The other part of CuO species located on the surface of the catalyst provides extra Cu+ sites available for low-temperature CO adsorption. This synergistic interaction with Pt sites further enhances CO and O2 activation, broadening the temperature window of high activity. The optimal Pt-10CuO/CeMnO2 catalyst exhibits complete CO conversion (CO/O2 ratio of 1:1) within the practical temperature range of 130–190 °C, even in the presence of CO2 and H2O, and remains stable at 150 °C for 76 h testing without any deactivation. This work will give a novel approach for the design of highly efficient inexpensive catalysts for industrial preferential oxidation of CO in H2, especially in the presence of CO2 and H2O.https://www.sciopen.com/article/10.26599/CF.2025.9200038preferential oxidation of cocu catalystwide temperature windowrealistic conditiondual active sites |
| spellingShingle | Jianlin Cao Tao Xing Zongzhuang Sun Sheng Wei Jiaqi Wang Lexin Mao Tao Liu Zhi Li Yongxiao Tuo Xin Zhou Hao Yan Yibin Liu Xiang Feng Chaohe Yang De Chen Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2 Carbon Future preferential oxidation of co cu catalyst wide temperature window realistic condition dual active sites |
| title | Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2 |
| title_full | Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2 |
| title_fullStr | Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2 |
| title_full_unstemmed | Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2 |
| title_short | Cu-doped CeMnO2-supported Pt catalysts with high activity at industrial operating conditions for preferential CO oxidation in H2 |
| title_sort | cu doped cemno2 supported pt catalysts with high activity at industrial operating conditions for preferential co oxidation in h2 |
| topic | preferential oxidation of co cu catalyst wide temperature window realistic condition dual active sites |
| url | https://www.sciopen.com/article/10.26599/CF.2025.9200038 |
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