Add time:07/26/2019         Source:sciencedirect.com

Gold nanoparticles in the cores coated by non-porous SILICA (cas 10279-57-9) shells ([email protected]2) and by porous silica shells ([email protected]2) were synthesized and used to catalyze the reduction and oxidation reactions to understand the influence of the structure of silica shells on their catalytic activity. [email protected]2 nanoparticles well catalyze the reduction and oxidation reactions while [email protected]2 nanoparticles are inactive for those reactions. The characterizations combining with catalytic reactions reveal that the porosity of silica shells is responsible for catalytic activity.

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