123rd General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Exhibition Hall 2
Time 4월 19일 (금요일) 11:00~12:30
Code MAT.P-394
Subject Heterolayered Organic Intercalation Compounds of Mixed Metal Oxide-Chalcogenide Nanosheets with Improved Electrocatalyst Performance
Authors Yuseon Kim, Xiaoyan Jin, Seong-Ju Hwang*
Department of Chemistry and Nanoscience, Ewha Womans University, Korea
Abstract Highly efficient electrocatalysts for hydrogen evolution reaction (HER) are synthesized by the intercalative hybridization of organic cation with mixed transition metal oxide (TMO)- transition metal dichalcogenide (TMD) host lattice achieved by the simultaneous restacking of these host nanosheets with organic cations. The obtained organic intercalation compounds with TMO-TMD nanosheets shows much higher HER electrocatalytic activity than do the pristine nanosheets. The positive effect of hybridization with exfoliated TMO nanosheet on the HER activity of TMD is attributable to the enhanced charge transfer kinetics and the provision of more active sites of TMD via the prevention of the self-stacking of TMD nanosheets. The present result clearly demonstrates that the application of mixed host lattice can provide a powerful way of exploring highly efficient electrocatalyst materials.
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