Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Kyeng-Bae Ma"'
Autor:
Sang-Beom Han, Ji-Eun Won, Kyeng-Bae Ma, Da-Hee Kwak, Sang-Hyun Moon, Do-Hyoung Kim, Kyung-Won Park, Jin-Young Park, Min-Cheol Kim
Publikováno v:
Carbon. 140:189-200
The relatively sluggish oxygen reduction reaction (ORR) and high overpotential at the cathode, compared to anode, increases the loading amount of Pt cathode catalysts. Thus, non-precious metal (NPM) catalysts such as nitrogen-doped carbon nanostructu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bdf54ae9e23ccf34f9385ccd5bc4543
https://doi.org/10.1016/j.carbon.2018.08.053
https://doi.org/10.1016/j.carbon.2018.08.053
Autor:
Ji-Eun Won, Kyeng-Bae Ma, Jin-Young Park, Min-Cheol Kim, Da-Hee Kwak, Hyun Suk Park, Kyung-Won Park, Sang-Beom Han, Do-Hyoung Kim
Publikováno v:
Journal of Power Sources. 393:32-36
(2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) with no free radical and non-volatile characteristic can be utilized as a liquid catalyst instead of O2 at the cathode in a chemical regenerative redox fuel cell with H2 as a fuel at the anode. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee4d1777054793f207b2dc6bc34a7a82
https://doi.org/10.1016/j.jpowsour.2018.05.009
https://doi.org/10.1016/j.jpowsour.2018.05.009
Autor:
Sang-Beom Han, Min-Cheol Kim, Sang-Hyun Moon, Do-Hyoung Kim, Da-Hee Kwak, Ji-Eun Won, Kyeng-Bae Ma, Kyung-Won Park, Hyun-Suk Park, Suk-Hui Kwon
Publikováno v:
ACS Sustainable Chemistry & Engineering. 6:7609-7618
Direct ethanol fuel cells (DEFCs), which use ethanol as a fuel, have attracted considerable attention due to their relatively high energy density, the nontoxicity of ethanol, and the abundance of ethanol sources. However, since the crossover of ethan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17716f5ccdd50b19a4643bec1591b162
https://doi.org/10.1021/acssuschemeng.8b00405
https://doi.org/10.1021/acssuschemeng.8b00405
Autor:
Dong-Hyun Peck, Kyeng-Bae Ma, Jin-Young Park, Kyung-Won Park, Da-Hee Kwak, Chang-Soo Kim, Anthony Kucernak, Sang-Kyung Kim, Sang-Beom Han, Geun Seok Chai
Publikováno v:
Journal of Catalysis. 359:46-54
For commercialization of proton exchange membrane fuel cells (PEMFCs), the loading amount of Pt-based cathode catalysts for oxygen reduction reaction (ORR) needs be significantly reduced. In this study, we propose Pt catalysts supported by an iron/ni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd7c35015fe015d5b6c119c248b4d865
https://doi.org/10.1016/j.jcat.2017.12.033
https://doi.org/10.1016/j.jcat.2017.12.033
Autor:
Do-Hyoung Kim, Da-Hee Kwak, Hyun-Suk Park, Jin-Young Park, Kyung-Won Park, Sang-Beom Han, Ji-Eun Won, Kyeng-Bae Ma
Publikováno v:
Journal of Catalysis. 358:287-294
A unitized regenerative fuel cell (URFC) that combines a fuel cell with a water electrolyzer is attractive as a portable power source. To enhance the efficiency of the URFC, a bifunctional oxygen catalyst for both oxygen reduction reaction (ORR) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c19526f3d68a1314f6a2af3c547aa14a
https://doi.org/10.1016/j.jcat.2017.12.013
https://doi.org/10.1016/j.jcat.2017.12.013
Autor:
Seok-Hyeon Yun, Ji-Eun Won, Da-Hee Kwak, Kyeng-Bae Ma, Moon Hyun Koh, Kyung-Won Park, Sang-Beom Han, Hyun-Suk Park, Do-Hyoung Kim, Jin-Young Park, Suk-Hui Kwon
Publikováno v:
International Journal of Hydrogen Energy. 43:1479-1488
Doped carbon nanostructures as non-precious metal (NPM) catalysts for oxygen reduction reaction (ORR) in acid medium are mainly synthesized using 5, 10, 15, 20-tetrakis (4-methoxyphenyl)-porphyrin-Fe (III) chloride (Fe-TMPP) as doping and carbon sour
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47c979e6bcbe943683444bf4097b047e
https://doi.org/10.1016/j.ijhydene.2017.11.173
https://doi.org/10.1016/j.ijhydene.2017.11.173
Autor:
In-Ae Choi, Sang-Beom Han, Kyung-Won Park, Do-Hyoung Kim, Da-Hee Kwak, Hyun-Seok Park, Ji-Eun Won, Kyeng-Bae Ma, Jin-Young Park
Publikováno v:
Applied Catalysis B: Environmental. 211:235-244
To replace Pt-based catalysts for oxygen reduction reactions in polymer electrolyte membrane fuel cells, various carbon nanostructures doped by transition metals and heteroatoms have been investigated. In this study, we synthesized bi-modal porous ir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf5fb40dfcf3d558815bddf5d3b94aa7
https://doi.org/10.1016/j.apcatb.2017.04.039
https://doi.org/10.1016/j.apcatb.2017.04.039
Autor:
In-Ae Choi, Gyu-Ho Lee, Kyeng-Bae Ma, Da-Hee Kwak, Hyun-Suk Park, Do-Hyoung Kim, Kyung-Won Park, Hye Jin Kwon, Min-Cheol Kim, Sang-Beom Han
Publikováno v:
ChemSusChem. 10:2202-2209
To develop doped carbon nanostructures as non-precious metal cathode catalysts, nanocomposites were synthesized by using SBA-15 and 5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin–iron(III) chloride with different ratios of amorphous MoS2 precursor.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::527f787a565b80859d67dd3eff97997f
https://doi.org/10.1002/cssc.201700147
https://doi.org/10.1002/cssc.201700147
Autor:
Young-Woo Lee, Da-Hee Kwak, In-Ae Choi, Kyung-Won Park, Jung Inn Sohn, Do-Hyoung Kim, Hyun-Suk Park, Min-Cheol Kim, Kyeng-Bae Ma, Sang-Beom Han, Si-Jin Kim
Publikováno v:
Applied Catalysis B: Environmental. 203:889-898
Many alternatives to typical Pt-based catalysts have been developed to enhance oxygen reduction reaction (ORR) performance in acid medium due to their scarcity and high activation loss during the ORR. We synthesized mesoporous carbon nanostructures w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c681ef4fb30f75118f3d00913b05a32
https://doi.org/10.1016/j.apcatb.2016.10.084
https://doi.org/10.1016/j.apcatb.2016.10.084
Autor:
Si-Jin Kim, Do-Hyoung Kim, Sang-Beom Han, Min-Cheol Kim, Hyun Suk Park, In-Ae Choi, Jin-Young Park, Kyung-Won Park, Ji-Eun Won, Kyeng-Bae Ma, Da-Hee Kwak
Publikováno v:
ACS Catalysis. 6:5302-5306
Chemically regenerative redox fuel cells (CRRFCs) using liquid catalysts as an alternative to solid-state cathode catalysts have been intensively studied. Here, we studied Fe2+/Fe3+ as a liquid catalyst with Fe-macrocycles as a cocatalyst in CRRFCs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae108a7f4a7a99b8409831179b796711
https://doi.org/10.1021/acscatal.6b01388
https://doi.org/10.1021/acscatal.6b01388