Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)
DOI: https://doi.org/10.29363/nanoge.nfm.2022.231
Publication date: 11th July 2022
Using green energy or increasing energy efficiency is the key to a sustainable world. 2D materials can be used to build a sustainable world in terms of low-cost H2 generation, low-power-consuming devices, and IA-enabled optimization of novel materials. In this talk, I will briefly discuss how we use 2D materials as an ideal platform to explore the mechanism of semiconducting catalysis.
It is known that semiconducting catalysts are great candidates to replace noble metals to make green energy such as H2 due to their low cost. Using 2D materials as the model system, we revisited the semiconductor-electrolyte interface and unraveled a universal self-gating phenomenon through micro-cell-based measurements. [1] We unveiled a surface conductance mechanism that dominates the charge transport in semiconductor electrocatalysts. Based on this, we provided a guideline on how to design a high-performance semiconductor electrocatalyst. We also demonstrate the synthesis of amorphous PtSex and its use in high-performance electrocatalyst. [2]
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