Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Min Her"'
99
In a cognitive radio network system with a collision constraint of primary user, approaches using the overlay, underlay, or the combination of the underlay and overlay methods have been purposed to optimize the transmission of the secondary u
In a cognitive radio network system with a collision constraint of primary user, approaches using the overlay, underlay, or the combination of the underlay and overlay methods have been purposed to optimize the transmission of the secondary u
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/74786258517486212120
Autor:
Tae Yong Yoo, Jongmin Lee, Sungjun Kim, Min Her, Shin-Yeong Kim, Young-Hoon Lee, Heejong Shin, Hyunsun Jeong, Arun Kumar Sinha, Sung-Pyo Cho, Yung-Eun Sung, Taeghwan Hyeon
Publikováno v:
Energy & Environmental Science. 16:1146-1154
High-power PEMFC performance requires holistic consideration of activation, ohmic, and concentration losses. A scalable production method of ORR electrocatalysts is developed to tackle all the critical factors to achieve practical PEMFC operation.
Autor:
Yong-Hun Cho, Oh Joong Kwon, Hyun S. Park, Ji Eun Park, Yung-Eun Sung, Sun Young Kang, Wonchan Hwang, Min Her, Ok-Hee Kim, Sungjun Kim, SungBin Park, Chi-Yeong Ahn
Publikováno v:
Chemical Reviews. 121:15075-15140
A substantial amount of research effort has been directed toward the development of Pt-based catalysts with higher performance and durability than conventional polycrystalline Pt nanoparticles to achieve high-power and innovative energy conversion sy
Publikováno v:
ACS Applied Energy Materials. 4:1459-1466
Iron- and nitrogen-doped carbon (Fe–N–C) catalysts have received significant attention owing to their high oxygen reduction reaction (ORR) activities, which are comparable to those of state-of-the-...
Publikováno v:
Molecules, Vol 17, Iss 7, Pp 8533-8553 (2012)
This study presents a new reaction of cationic vinylidene complexes with Me3SiN3 (TMSN3), which yields N-coordinated nitrile complexes 3. Treatment of a ruthenium acetylide precursor containing indenyl and dppe ligands with a series of organic halide
Externí odkaz:
https://doaj.org/article/fcaaf3409f364e54b532e4b050258b47
Autor:
Hyoung-Juhn Kim, Min Her, Sungjun Kim, Mansoo Choi, Jue-Hyuk Jang, Yong-Hun Cho, Segeun Jang, Jiwoo Choi, Yung-Eun Sung, Sung Jong Yoo, Sang Moon Kim, Ji Eon Chae
Publikováno v:
ACS Applied Materials & Interfaces. 11:34805-34811
The recent development of ultrathin anion exchange membranes and optimization of their operating conditions have significantly enhanced the performance of alkaline-membrane fuel cells (AMFCs); however, the effects of the membrane/electrode interface
Publikováno v:
Journal of Solid State Chemistry. 269:271-277
Compounds {[Ba3(tpmm)(H2O)15]·5H2O}n (1) and {[Ba6(tpmm)2(H2O)22]·15H2O}n (2) were obtained through reactants slowly diffusion of barium acetate (Ba(CH3COO)2) and 2,4,6-tris(phosphorylmethyl)mesitylene (H6tpmm) at room temperature in H2O/THF/MeOH m
Autor:
Ji Eun Park, Sun Young Kang, Myung Su Lim, Seung-Hyeon Oh, Young-Hun Cho, Min Her, Jong Kwan Kim, Yung-Eun Sung, Mi-Ju Kim
Publikováno v:
Applied Catalysis B: Environmental. 237:140-148
Graphitic carbon nitride-carbon nanofiber (g-CN-CNF) was synthesized as a bifunctional catalyst in an anion-exchange membrane water electrolyzer (AEMWE), and primary and rechargeable Zn–air cells. The g-CN-CNF catalyst shows high catalytic activity
Publikováno v:
Electrochimica Acta. 400:139439
Intrinsic water imbalance in AEMFC complicates the mass transport phenomena in the electrodes and causes performance loss. Because an AEMFC electrode is a complex multi-component system composed of agglomerates of carbon-supported catalyst bound to i
Autor:
Hyunjoon Lee, Chi-Yeong Ahn, Sungjun Kim, Ji Eun Park, Wonchan Hwang, Ok-Hee Kim, Min Her, Yung-Eun Sung, Yong-Hun Cho
Publikováno v:
International Journal of Hydrogen Energy. 43:10070-10081
An ideal oxygen reduction catalyst for use in fuel cells should exhibit both long-term durability and high activity. In this study, to increase the durability of highly loaded platinum- and platinum-nickel alloy catalysts possessing different types o