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Highlight Lecture

WEB crystalline–amorphous phase boundary for hydrogen production via water oxidation

Thursday (24.09.2020)
09:15 - 09:30 M: Modelling and Simulation 1
Part of:

The interface between the amorphous and crystalline phases plays a significant role in the electrocatalytic activity of transition metal compounds for water splitting. An increase in the density of the crystalline–amorphous phase boundary would enhance the electrochemical water oxidation on the catalyst. We present a new and facile strategy for the formation of high density crystalline–amorphous phase boundaries using selective fluorination surface doping, which results in excellent characteristics of the engineered material for electrochemical water splitting. An initial computational simulation is carried out to design the crystalline–amorphous phase boundary material and an experimental verification follows for demonstration and optimization of the impact of surface doping. It is concluded that engineering of the interface using this facile and cost-effective strategy maximizes the crystalline and amorphous phases of metal–metalloids, which can be used to fabricate low-cost and efficient electrocatalysts for water oxidation.

Dr. Sungwook Mhin
Kyonggi University