Composite metal catalyst as well as preparation method and application thereof
The invention relates to the technical field of air pollution control, in particular to a composite metal catalyst and a preparation method and application thereof. The composite metal catalyst comprises a Co3O4 nano cubic block, and CeO2 nano particles are loaded on the surface of the Co3O4 nano cu...
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| creator | XIAO HAOYANG LIU FENG HUANG BAOBAO ZHENG YASHI PENG SIYING ZHU WEITAO CHEN LONGWEN CHEN YANWU |
| description | The invention relates to the technical field of air pollution control, in particular to a composite metal catalyst and a preparation method and application thereof. The composite metal catalyst comprises a Co3O4 nano cubic block, and CeO2 nano particles are loaded on the surface of the Co3O4 nano cubic block. In the composite metal catalyst, the ratio of the amount of substance of the Co element to the amount of substance of the Ce element is 1: (0.03-0.2). According to the invention, CeO2 is loaded on the surface of the Co3O4 nano cube, the interface of Co3O4-CeO2 is adjusted and optimized, the synergistic effect of CeO2 and Co3O4-CeO2 can be induced, the catalytic performance is greatly improved, the combustion temperature of soot particles is greatly reduced, and the catalyst has good catalytic stability and is expected to replace precious metals such as platinum and palladium in the existing soot oxidation combustion catalyst. The cost is effectively reduced while the catalytic performance is ensured, and |
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The composite metal catalyst comprises a Co3O4 nano cubic block, and CeO2 nano particles are loaded on the surface of the Co3O4 nano cubic block. In the composite metal catalyst, the ratio of the amount of substance of the Co element to the amount of substance of the Ce element is 1: (0.03-0.2). According to the invention, CeO2 is loaded on the surface of the Co3O4 nano cube, the interface of Co3O4-CeO2 is adjusted and optimized, the synergistic effect of CeO2 and Co3O4-CeO2 can be induced, the catalytic performance is greatly improved, the combustion temperature of soot particles is greatly reduced, and the catalyst has good catalytic stability and is expected to replace precious metals such as platinum and palladium in the existing soot oxidation combustion catalyst. 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| subjects | BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS |
| title | Composite metal catalyst as well as preparation method and application thereof |
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