K
Kee-Chul Chang
Researcher at Argonne National Laboratory
Publications - 56
Citations - 10069
Kee-Chul Chang is an academic researcher from Argonne National Laboratory. The author has contributed to research in topics: Thin film & Catalysis. The author has an hindex of 23, co-authored 56 publications receiving 8156 citations. Previous affiliations of Kee-Chul Chang include Ludwig Maximilian University of Munich & Cornell University.
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Journal ArticleDOI
Trends in activity for the water electrolyser reactions on 3d M(Ni,Co,Fe,Mn) hydr(oxy)oxide catalysts.
Ram Subbaraman,Dusan Tripkovic,Kee-Chul Chang,Dusan Strmcnik,Arvydas P. Paulikas,Pussana Hirunsit,Maria K. Y. Chan,Jeffrey Greeley,Vojislav R. Stamenkovic,Nenad M. Markovic +9 more
TL;DR: The overall catalytic activities for these reaction as a function of a more fundamental property, a descriptor, OH-M(2+δ) bond strength (0 ≤ δ ≤ 1.5), provide the foundation for rational design of 'active sites' for practical alkaline HER and OER electrocatalysts.
Journal ArticleDOI
Enhancing Hydrogen Evolution Activity in Water Splitting by Tailoring Li+-Ni(OH)2-Pt Interfaces
Ram Subbaraman,Dusan Tripkovic,Dusan Strmcnik,Kee-Chul Chang,Masanobu Uchimura,Arvydas P. Paulikas,Vojislav R. Stamenkovic,Nenad M. Markovic +7 more
TL;DR: It is found that a controlled arrangement of nanometer-scale Ni(OH)2 clusters on platinum electrode surfaces manifests a factor of 8 activity increase in catalyzing the hydrogen evolution reaction relative to state-of-the-art metal and metal-oxide catalysts.
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Design of active and stable Co-Mo-Sx chalcogels as pH-universal catalysts for the hydrogen evolution reaction.
Jakub Staszak-Jirkovský,Christos D. Malliakas,Christos D. Malliakas,Pietro P. Lopes,Nemanja Danilovic,Subrahmanyam S. Kota,Kee-Chul Chang,Bostjan Genorio,Bostjan Genorio,Dusan Strmcnik,Vojislav R. Stamenkovic,Mercouri G. Kanatzidis,Mercouri G. Kanatzidis,Nenad M. Markovic +13 more
TL;DR: By combining the higher activity of CoSx building blocks with the higher stability of MoSx units into a compact and robust CoMoSx chalcogel structure, this work is able to design a low-cost alternative to noble metal catalysts for efficient electrocatalytic production of hydrogen in both alkaline and acidic environments.
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Enhancing the Alkaline Hydrogen Evolution Reaction Activity through the Bifunctionality of Ni(OH)2/Metal Catalysts
Nemanja Danilovic,Ram Subbaraman,Dusan Strmcnik,Kee-Chul Chang,Arvydas P. Paulikas,Vojislav R. Stamenkovic,Nenad M. Markovic +6 more
TL;DR: The hydrogen evolution reaction rate on a Ni electrode modified by Ni(OH)(2) nanoclusters is about four times higher than on a bare Ni surface.
Journal ArticleDOI
Pentacene Thin Film Growth
Ricardo Ruiz,Devashish Choudhary,Bert Nickel,Tullio Toccoli,Kee-Chul Chang,Alex C. Mayer,Paulette Clancy,Jack M. Blakely,Randall L. Headrick,Salvatore Iannotta,George G. Malliaras +10 more
TL;DR: In this paper, the authors discuss the processes involved in pentacene film growth, emphasizing differences with respect to inorganic films and the influence of growth parameters such as substrate nature and temperature, the deposition rate, and the kinetic energy of the molecular beam on the structure and morphology of Pentacene films.