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Isobutanol production from an engineered Shewanella oneidensis MR-1
Jeon, Jong-Min,Park, Hyojung,Seo, Hyung-Min,Kim, Jung-Ho,Bhatia, Shashi Kant,Sathiyanarayanan, Ganesan,Song, Hun-Suk,Park, Sung-Hee,Choi, Kwon-Young,Sang, Byoung-In,Yang, Yung-Hun SPRINGER 2015 BIOPROCESS AND BIOSYSTEMS ENGINEERING Vol.38 No.11
Selective deposition of Pt onto supported metal clusters for fuel cell electrocatalysts.
Jeon, Tae-Yeol,Pinna, Nicola,Yoo, Sung Jong,Ahn, Docheon,Choi, Sun Hee,Willinger, Marc-Georg,Cho, Yong-Hun,Lee, Kug-Seung,Park, Hee-Young,Yu, Seung-Ho,Sung, Yung-Eun RSC Pub 2012 Nanoscale Vol.4 No.20
<P>We report a new method for deposition of Pt on a metal core to develop real electrocatalysts with significantly reduced amounts of expensive Pt as well as enhanced activity for oxygen reduction reaction. Ru and Pd have different crystal structures and modify the electronic structure of Pt to a different extent (shifts in d-band center). They were chosen as core materials to examine whether hydroquinone dissolved in ethanol can be used to deposit additional Pt atoms onto preformed core nanoparticles, and whether the modified d-character of Pt on different host metals can result in the enhanced ORR activity. The physicochemical characteristics of Pd-Pt and Ru-Pt core-shell nanoparticles are investigated. The core-shell structure was identified through a combination of experimental methods, employing electron microscopy, electrochemical measurements, and synchrotron X-ray measurements such as powder X-ray diffraction, X-ray absorption fine structure, and X-ray photoelectron spectroscopy. The hydroquinone reduction method proved to be an excellent route for the epitaxial growth of a Pt shell on the metal cores, leading to enhanced ORR activities.</P>
Genetic Distribution of Carbapenem-Resistant Enterobacteriaceae in Seoul Korea, 2018~2020
Sang-Hun Park,So-Hyun Park,Jin-Seok Kim,Jin-Kyung Yu,Jin-Kyoung Kim,Hyo-Sun Suh,Eun Young Kwon,Kyoung Ae Park,Eui Kyung Cha,Jae Min Shin,Hyo-Won Jeoung,Su-Jin Jeon,Young-Ok Hwang,Jib-Ho Lee,Yong-Seoun 대한바이러스학회 2022 Journal of Bacteriology and Virology Vol.52 No.1