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  • Title: Investigation of the stability of Platinum nanoparticles incorporated in mesoporous silica with different pore sizes.
    Author: Yano K, Zhang S, Pan X, Tatsuda N.
    Journal: J Colloid Interface Sci; 2014 May 01; 421():22-6. PubMed ID: 24594027.
    Abstract:
    The effect of the pore size of mesoporous silica on the stability of Pt nanoparticles (NPs) has been investigated. TEM observation and XRD measurement were conducted in situ for Pt loaded mesoporous silica with different mesopore sizes. It turns out that smaller pores are more effective to stabilize Pt NPs below 600 °C. However, aggregation of Pt NPs on the surface of particles is not fully suppressed more than 1000 °C in ambient atmosphere even though smaller mesopore size is applied. The type of precursor does not affect the stability of Pt NPs.
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