Journal
CHEMICAL PHYSICS LETTERS
Volume 728, Issue -, Pages 80-86Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2019.04.082
Keywords
Core@shell; Gold@silica; Porous materials; Reduction; Oxidation
Funding
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [104.05-2018.47]
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Gold nanoparticles in the cores coated by non-porous silica shells (Au@nSiO(2)) and by porous silica shells (Au@pSiO(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. Au@pSiO(2) nanoparticles well catalyze the reduction and oxidation reactions while Au@pSiO(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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