120th General Meeting of the KCS

Type Poster Presentation
Area Inorganic Chemistry
Room No. Exhibition Hall 2+3
Time 10월 19일 (목요일) 11:00~12:30
Code INOR.P-1
Subject Shape and Composition Effects of Palladium Catalysts for Ethanol Oxidation Reaction
Authors kyungsoo kim, Jong Wook Hong1,*
Department of Chemistry, University of Ulsan, Korea
1Chemistry, University of Ulsan, Korea
Abstract Polymer electrolyte membrane fuel cells (PEMFCs) have attracted interests due to high efficiency, environment-friendly and low electrode reaction temperature compared other cells. Palladium (Pd) catalysts have significant properties at ethanol oxidation reaction (EOR) of anode fuel oxidation reaction in PEMFCs. Controlling shape and composition of Pd catalysts at nanoscale enhances electrocatalytic activity. Notably, size and crystallinity of catalysts can influence on their catalytic activities due to modification of surface area and energy. In addition, optimization of binding strength between surface atoms of Pd catalysts and molecules can be obtained by control of composition ratio. Herein, we have synthesized two shapes of palladium nanoparticles of cube and octahedron and sulfidation of pre-formed palladium nanoparticles for using a facile synthesis method. Measuring scanning electron microscopy (SEM) and transmission electron microscopy (TEM) compared shapes of palladium and palladium sulfide nanoparticles and cyclovoltammetry (CV), electrocatalysis properties of palladium catalysis in ethanol oxidation reaction as anode half-cell.
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