123rd General Meeting of the KCS

Type Symposium
Area Material Design and Applications for Artificial Photosynthesis
Room No. Room 405+406
Time FRI 15:30-15:55
Code MAT3-3
Subject Advantageous Crystalline-Amorphous Phase Boundary in Metal-Metalloid for Electrochemical Water Oxidation
Authors Hyuksu Han
Korea Institute of Industrial Technology, Korea
Abstract The development of cost-effective and high-performance electrocatalysts is the primary concern for electrochemical water oxidation applications. Researchers recently reported that the interface between the amorphous layer and crystalline surface plays an important role in enhancing the electrocatalytic activity of transition metal compounds; the high density of the interface between amorphous and crystalline phases should be able to further enhance water oxidation activity of transition metal compounds. In this work, we developed a new and facile strategy for designing high-performance transition metal borides for water splitting by inducing the formation of high density crystalline/amorphous phase boundaries via surface fluorination. Computational simulation was firstly conducted to test our material design principle, followed by experimental verification for optimization. The material design principle proposed in this work is a facile and cost-effective way to considerably enhance the water oxidation activity of metal-metalloids for electrocatalyst applications.
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