S
Sung Hwa Choi
Researcher at Korea Institute of Science and Technology
Publications - 13
Citations - 709
Sung Hwa Choi is an academic researcher from Korea Institute of Science and Technology. The author has contributed to research in topics: Inductively coupled plasma mass spectrometry & Solid oxide fuel cell. The author has an hindex of 8, co-authored 13 publications receiving 624 citations. Previous affiliations of Sung Hwa Choi include Chosun University.
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Characterization of ZrO2 co-doped with Sc2O3 and CeO2 electrolyte for the application of intermediate temperature SOFCs
TL;DR: In this article, the electrical conductivity and phase stability of ZrO 2 co-doped with Sc 2 O 3 and CeO 2 were investigated in order to search for a better solid electrolyte material, which can be applicable for intermediate or low-temperature solid oxide fuel cells (SOFCs).
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Analysis of minor and trace elements in milk and yogurts by inductively coupled plasma-mass spectrometry (ICP-MS).
Naeem Khan,In Seon Jeong,In Min Hwang,Jae-Sung Kim,Sung Hwa Choi,Eun Yeong Nho,Ji Yeon Choi,Kyung Su Park,Kyong Su Kim +8 more
TL;DR: The overall concentrations of minor elements were found to have good nutritional values in accordance to RDA and the level of toxic trace elements, including As, Cd and Pb were very low and did not pose any threat to consumers.
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Method validation for simultaneous determination of chromium, molybdenum and selenium in infant formulas by ICP-OES and ICP-MS
Naeem Khan,In Seon Jeong,In Min Hwang,Jae-Sung Kim,Sung Hwa Choi,Eun Yeong Nho,Ji Yeon Choi,Byung-Man Kwak,Jang-Hyuk Ahn,Taehyung Yoon,Kyong Su Kim +10 more
TL;DR: The contents of Cr, Mo and Se in infant formulas by ICP-MS were found in good nutritional values in accordance to nutrient standards for infant formulas CODEX values.
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Fabrication and performance evaluation of 3-cell SOFC stack based on planar 10 cm × 10 cm anode-supported cells
TL;DR: In this article, a planar-type solid oxide fuel cell (SOFC) stacks based on an internal gas manifold and a cross-flow type design are developed for longterm operation and thermal cycling tests.
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Viable image analyzing method to characterize the microstructure and the properties of the Ni/YSZ cermet anode of SOFC
TL;DR: In this paper, an image analyzing method was developed to differentiate each constituent phase of the Ni/YSZ cermet, enabling the characterization of the correlation between the microstructure and the properties of Ni/YZ anode.