Controlled Synthesis of Pt-Ni Bimetallic Catalysts and Study of Their Catalytic Properties

Beschreibung

This thesis focuses on the controlled synthesis of Pt–Ni bimetallic nanoparticles and the study of their catalytic properties. It discusses in detail the nucleation mechanism and the growth process of bimetallic systems, which is vital for a deeper understanding of the design of bimetallic catalysts. The author presents four pioneering studies: (1) syntheses of water-soluble octahedral, truncated octahedral, and cubic Pt–Ni nanocrystals and the study of their structure-activity relationship in model hydrogenation reactions; (2) a strategy for designing a concave Pt–Ni alloy using controllable chemical etching; (3) defect-dominated shape recovery of nanocrystals, which is a new synthesis strategy for trimetallic catalysts; (4) a sophisticated construction of Au islands on Pt−Ni, which is an ideal trimetallic nanoframe catalyst. This thesis inspires researchers working in materials, catalysis as well as other interdisciplinary areas. 
This thesis focuses on the controlled synthesis of Pt–Ni bimetallic nanoparticles and the study of their catalytic properties. It discusses in detail the nucleation mechanism and the growth process of bimetallic systems, which is vital for a deeper understanding of the design of bimetallic catalysts. The author presents four pioneering studies: (1) syntheses of water-soluble octahedral, truncated octahedral, and cubic Pt–Ni nanocrystals and the study of their structure-activity relationship in model hydrogenation reactions; (2) a strategy for designing a concave Pt–Ni alloy using controllable chemical etching; (3) defect-dominated shape recovery of nanocrystals, which is a new synthesis strategy for trimetallic catalysts; (4) a sophisticated construction of Au islands on Pt−Ni, which is an ideal trimetallic nanoframe catalyst. This thesis inspires researchers working in materials, catalysis as well as other interdisciplinary areas. 
Nominated by Tsinghua University as an outstanding PhD thesis Reports on important advances in the study of bimetallic Pt–Ni alloys Introduces effective strategies in the controlled synthesis of bimetallic and polymetallic nanoparticles Discusses the applications of Pt–Ni bimetallic catalysts in organic transformation and fuel cells Includes supplementary material: sn.pub/extras

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Yuen Wu

Themen in »Controlled Synthesis of Pt-Ni Bimetallic Catalysts and Study of Their Catalytic Properties«

Controllable Chemical Etching Defect-dominated Shape Recovery Fuel Cells Hydrogenation Reaction Nanocrystal Catalyst Organic Transformation Pt-Ni bimetallic Catalyst Synthetic Methodology Trimetallic Nanoframe Catalyst

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