Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/125247
Title: NANO-STRUCTURED CARBON MATERIALS FOR ENERGY GENERATION AND STORAGE
Authors: PHAM KIEN CUONG
Keywords: Carbon, Graphene, Carbon Nanotube, Proton Exchange Membrane Fuel Cell, Hydrogen Evolution Reaction, Supercapacitor
Issue Date: 4-Jan-2016
Source: PHAM KIEN CUONG (2016-01-04). NANO-STRUCTURED CARBON MATERIALS FOR ENERGY GENERATION AND STORAGE. ScholarBank@NUS Repository.
Abstract: A nano-structured carbon material referred to as Graphene-Carbon Nanotube hybrid is developed for electrochemical energy conversion and storage devices. The hybrid is obtained by catalyst-free growth of free-standing graphene on CNT scaffolds. The hybrid combines the advantageous properties of constituent materials, including an ultra-high density of graphitic edges of graphene and a porous structure of CNTs. As a catalyst support for platinum in PEM fuel cells, the hybrid shows both enhanced catalytic activity and superior stability compared to a commercial carbon black-supported platinum catalyst. The hybrid is also used as a support material for amorphous molybdenum sulfide in supercapacitor and hydrogen evolution reaction catalyst applications. As a supercapacitor electrode material, the hybrid shows high specific capacitance and good stability. As a hydrogen evolution reaction catalyst, the hybrid is one of the most active non-precious catalysts ever reported. FIB-SEM tomography is used to reconstruct the porous 3D structure of carbon electrodes.
URI: http://scholarbank.nus.edu.sg/handle/10635/125247
Appears in Collections:Ph.D Theses (Open)

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