Catalyst with Yolk-Shell structure, preparation method and application
The invention provides a catalyst with a Yolk-Shell structure as well as a preparation method and application thereof, and relates to the technical field of nano material preparation. The catalyst with the Yolk-Shell structure comprises an inner core and a shell layer coating the inner core, the inn...
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| creator | ZHANG CHENGYU ZHU QIANGTAO HE MENGYAO LI JIA SUN YANGYI QI DONGMING |
| description | The invention provides a catalyst with a Yolk-Shell structure as well as a preparation method and application thereof, and relates to the technical field of nano material preparation. The catalyst with the Yolk-Shell structure comprises an inner core and a shell layer coating the inner core, the inner core is precious metal nanoparticles, and the shell layer is mesoporous organic silicon. Under the assistance of the mesoporous organic silicon, the precious metal nanoparticles have good dispersibility, are not easy to agglomerate, and have good catalytic characteristics. The preparation method comprises the following steps: adding a surfactant into a mixed solution of ethanol and an acetic acid aqueous solution, and stirring to obtain a first reaction solution; adding a silane coupling agent into the first reaction solution, and hydrolyzing to obtain a second reaction solution; dispersing the precious metal nanoparticles in an ethanol water solution, heating to 40-60 DEG C, and adding an alkali catalyst to obt |
| format | Patent |
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| language | chi ; eng |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Catalyst with Yolk-Shell structure, preparation method and application |
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