Journal of Colloid and Interface Science 516 (2018) 407–415 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Immobilization of Pt nanoparticles in hollow mesoporous silica nanocapsules: An aggregation- and leaching-resistant catalyst Dan Xu, Wei David Wang, Meng Tian, Zhengping Dong College of Chemistry and Chemical Engineering, Gansu Provincial Engineering Laboratory for Chemical Catalysis, Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Lanzhou University, Lanzhou 730000, PR China graphical a bstract article i nfo abstract Article history: In this study, hollow mesoporous silica nanocapsules (h-mNSiO ) with uniformly dispersed Pt nanopar- Received 25 November 2017 ticles (Pt NPs) in their hollow core (Pt@h-mNSiO ) were successfully fabricated. The as-synthesized Pt@h- Revised 15 January 2018 mNSiO was core@shell like structure with silica shells and Pt-rich cores. The catalyst was synthesised in Accepted 16 January 2018 an oil-water biphasic stratiﬁcation system, then the self-assembly of reactants occurred in the oil-water Available online 31 January 2018 interface for one-pot sustaining interfacial growth. The as-prepared Pt@h-mNSiO catalyst exhibited superior activity for hydrogen generation from the hydrolysis of ammonia borane, with a turnover fre- Keywords: 1 1 quency of 371.7 mol mol min at
Journal of Colloid and Interface Science – Elsevier
Published: Apr 15, 2018
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