Unexpected presence of alkali metal cation impurities, stabilizing Cu+ in oxide-derived Cu for CO2 electrolysis
H. Kim,†, S Lee,†, J. Son,†, H. Choi, J. Cho, B. Gault, W.-H. Lee, B. Klein, C. Jeon, J. Moon, D. H. Won, D.-H. Nam, G. Kang, H. Shin,*, S.-H. Kim,*, C. H. Choi*
2
Space charge, modulating the catalytic activity of single-atom metal catalysts
H. Choi,†, S.-J. Shin,†, G. Bae,†, J. Cho, M. H. Han, M. T. Sougrati, F. Jaouen, K.-S. Lee, H.-S. Oh, H. Kim,*, C. H. Choi*
Journal of the American Chemical Society, 2025
3
Cation effect on the electrochemical platinum dissolution
H. Kim,†, M. M. Kim,†, J. Cho,†, S. Lee, D. H. Kim, S.-J. Shin, T. Utsunomiya, W. A. Goddard III, Y. Katayama,*, H. Kim,*, C. H. Choi*
Journal of the American Chemical Society, 2025
4
Alkali metal cations act as homogeneous cocatalysts for the oxygen reduction reaction in aqueous electrolytes
S. G. Ji,†, M. M. Kim,†, M. H. Han,†, J. Cho, Y. Son, Y. Y. Kim, J. Jeong, Z. H. Kim, K. H. Chae, H.-S. Oh,*, H. Kim,*, C. H. Choi*
Nature Catalysis, 2024
5
Unraveling the complex causality behind Fe-N-C degradation in fuel cells
G. Bae, M. M. Kim, M. H. Han, J. Cho, D. H. Kim, M. T. Sougrati, J. Kim, K.-S. Lee, S. H. Joo, W. A. Goddard III, H.-S. Oh,*, H. Kim,*, F. Jaouen,*, C. H. Choi*
Nature Catalysis, 2023
6
Electrocatalytic access to azetidines via intramolecular allylic hydroamination: Scrutinizing key oxidation steps through electrochemical kinetic analysis
S. H. Park,†, G. Bae,†, A. Choi, S. Shin, K. Shin,*, C. H. Choi,*, H. Kim*
Journal of the American Chemical Society, 2023
7
Importance of broken geometric symmetry of single-atom Pt sites for efficient electrocatalysis
J. Cho,†, T. Lim,†, H. Kim,†, L. Meng, J. Kim, S. Lee, J. H. Lee, G. Y. Jung, K.-S. Lee, F. Viñes, F. Illas, K. S. Exner,*, S. H. Joo,*, C. H. Choi*
Nature Communications, 2023
8
Operando stability of single-atom electrocatalysts
G. Bae, S. Han, H.-S. Oh, C. H. Choi*
Angewandte Chemie International Edition, 2023
9
Transplanting gold active sites into non-precious metal nanoclusters for efficient CO2-to-CO electroreduction
H. Seong, Y. Jo, V. Efremov, Y. Kim, S. Park, S. M. Han, K. Chang, W. Choi, W. Kim,*, C. H. Choi,*, J. S. Yoo,*, D. Lee*
Journal of the American Chemical Society, 2023
10
Elucidation of electrochemically induced but chemically driven Pt dissolution