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Title: Preparation of nanomaterials for catalytic applications
Keywords: Nanocatalysis; Alkenol Isomerization; Photodegradation; Silane Hydrolysis; Thiol Coupling; Hydrocarboxylation
Issue Date: 23-Aug-2013
Citation: CHONG YUAN YI (2013-08-23). Preparation of nanomaterials for catalytic applications. ScholarBank@NUS Repository.
Abstract: In this thesis, we report preparation of different nanomaterials for catalytic applications that may shed some lights in the environmental, energy and chemical industries. In Chapter 2, rhenium nanoparticles, prepared via photodecomposition of Re2(CO)10, have been studied for alkenol isomerization and catalytic graphitization. In Chapter 3, single-crystalline ReO3 nanocubes, synthesized via controlled reduction of Re2O7 methanolic solution at 250&176;C under surfactantless condition, showed high efficiency towards visible light-induced photodegradation of azo dye under ambient condition. In Chapter 4, PVP-capped Ru nanoparticles have been demonstrated as chemo-selective catalysts for the oxidative coupling of thiols and hydrolysis of silanes. Turnover numbers as high as 165 were achieved. In Chapter 5, surface functionalization of Ag nanocubes and nanoparticles with catalytically-active ruthenium carbonyl oligomers ([Ru2(MPA)4(CO)4]n) has been demonstrated. The [Ru2(MPA)4(CO)4]n oligomer-capped Ag nanostructures showed rate enhancement as high as 33-fold towards the catalytic hydrocarboxylation terminal alkynes as compared to the free [Ru2(MPA)4(CO)4]n counterparts.
Appears in Collections:Ph.D Theses (Open)

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