A dual soft-template synthesis of hollow mesoporous silica spheres decorated with Pt nanoparticles as a CO oxidation catalyst. Issue 119 (19th November 2015)

• Record Type: Journal Article
• Authors: Li, Yunqi; Bastakoti, Bishnu Prasad; Abe, Hideki; Liu, Zongwen; Minett, Andrew; ALOthman, Zeid A.; Yamauchi, Yusuke
• Is Part Of: RSC advances. Volume 5:Issue 119(2015)
• Page Start: 97928
• Page End: 97933
• Publication Date: 2015-11-19
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra17340j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Hollow mesoporous silica spheres decorated with fine Pt nanoparticles are prepared through a dual soft-template system and used as a catalyst for high-temperature CO oxidation. Abstract : Hollow mesoporous silica (HMS) decorated with fine Pt nanoparticles is directly prepared through a dual soft-template system using a triblock copolymer, poly(styrene- b -2-vinyl pyridine- b -ethylene oxide), and a cationic surfactant, cetyltrimethylammonium bromide. The Pt nanoparticles of uniform particle size are stably embedded inside the mesoporous silica shell and possess both a huge surface area and a large total pore volume. The Pt nanoparticles supported by the mesoporous silica exhibit excellent thermal stability, which enables their application in high-temperature CO oxidation.