117 Papers
189 Citations
Uk Sim is an academic researcher from Chonnam National University. The author has contributed to research in topics: Catalysis & Chemistry. The author has an hindex of 18, co-authored 59 publications. Previous affiliations of Uk Sim include Seoul National University & Korea Institute of Science and Technology.
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Papers
Hydrated Manganese(II) Phosphate (Mn3(PO4)2·3H2O) as a Water Oxidation Catalyst
Kyoungsuk Jin,Jimin Park,Joohee Lee,Ki Dong Yang,Gajendra Kumar Pradhan,Uk Sim,Donghyuk Jeong,Hae Lin Jang,Sangbaek Park,Dong-Hun Kim,Nark Eon Sung,Sun Hee Kim,Seungwu Han,Ki Tae Nam +13 more
TL;DR: A new crystal structure is identified, Mn3(PO4)2·3H2O, that precipitates spontaneously in aqueous solution at room temperature and is demonstrated to have high catalytic performance under neutral conditions.
340
Achieving highly efficient CO2 to CO electroreduction exceeding 300 mA cm−2 with single-atom nickel electrocatalysts
Hui-Yun Jeong,Mani Balamurugan,Venkata Surya Kumar Choutipalli,Venkata Surya Kumar Choutipalli,Eun-Suk Jeong,Venkatesan Subramanian,Venkatesan Subramanian,Uk Sim,Ki Tae Nam +8 more
TL;DR: In this article, single atom nickel and nitrogen doped three-dimensional porous carbon catalysts are developed for the selective production of carbon monoxide (CO) from CO2, and the catalysts exhibit high CO selectivity with over 99% faradaic efficiency at −0.8 V vs. RHE in a bicarbonate electrolyte.
176
N-doped graphene quantum sheets on silicon nanowire photocathodes for hydrogen production
Uk Sim,Joonhee Moon,Junghyun An,Jin Hyoun Kang,Sung Eun Jerng,Junsang Moon,Sung-Pyo Cho,Byung Hee Hong,Ki Tae Nam +8 more
TL;DR: In this article, the authors suggest using graphene quantum sheets as a catalyst for the solar-driven hydrogen evolution reaction on Si nanowire photocathodes, and demonstrate that the optimum nanostructures of the Si photocathode exhibit an enhanced photocurrent and a lower overpotential compared to those of a planar Si surface.
146
A new hematite photoanode doping strategy for solar water splitting: oxygen vacancy generation.
Tae-Youl Yang,Ho-Young Kang,Uk Sim,Young-Joo Lee,Jihoon Lee,Byungjin Koo,Ki Tae Nam,Young-Chang Joo +7 more
TL;DR: The controlled generation of oxygen vacancies can activate the photoactivity of pure hematite remarkably and further enhance the Sn doping effects synergistically and results in the optimum concentration region to show the high photocurrent and low onset voltage.
141
The synergistic effect of nitrogen and fluorine co-doping in graphene quantum dot catalysts for full water splitting and supercapacitor
Yelyn Sim,Seung Jae Kim,Gnanaprakasam Janani,Yujin Chae,Subramani Surendran,Hyunkyu Kim,Seungryul Yoo,Dong Chan Seok,Yong Ho Jung,Cheolho Jeon,Joonhee Moon,Uk Sim +11 more
TL;DR: In this article, the nitrogen and fluorine co-doped graphene quantum dot (N,F-GQDs) were synthesized by two-step functionalizing method for highly efficient overall water splitting.
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