Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Ju-Hae Jung"'
Autor:
Seung Hwan Ko, Ju Hae Jung, Ha Beom Lee, Ryan O'Hayre, Ikwhang Chang, Taehyun Park, Sung Jong Yoo, Suk Won Cha
Publikováno v:
Energy. 134:412-419
This work investigates the effect of assembly pressure on the performance of a bendable polymer electrolyte fuel cell based on silver nanowire current collectors. We define assembly pressure as the compressive stress exerted by the bendable fuel cell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e00bed789cccc28d6f514f896a41dc5
https://doi.org/10.1016/j.energy.2017.05.197
https://doi.org/10.1016/j.energy.2017.05.197
Autor:
S.H. Han, Euiji Choi, Yeon Hun Jeong, Jong Hyun Jang, Suk Woo Nam, Ju Hae Jung, Hyoung-Juhn Kim, Alina Irene Begley, Jin Young Kim, Sung Jong Yoo
Publikováno v:
JOURNAL OF SENSORS
Journal of Sensors, Vol 2016 (2016)
Journal of Sensors, Vol 2016 (2016)
High-temperature proton exchange membrane fuel cells (HT-PEMFCs) utilize a phosphoric acid- (PA-) doped polybenzimidazole (PBI) membrane as a polymer electrolyte. The PA concentration in the membrane can affect fuel cell performance, as a significant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef5ee0acbb76166608ed8e9e088e08dc
https://doi.org/10.1155/2016/5290510
https://doi.org/10.1155/2016/5290510
Autor:
Yeon Hun Jeong, Kwan Young Lee, Suk Woo Nam, Ju Hae Jung, Jong Hyun Jang, Euiji Choi, Alina Irene Begley, Jin Young Kim, Hyoung-Juhn Kim, Sung Jong Yoo, S.H. Han
Publikováno v:
Journal of Power Sources. 299:480-484
A simple and precise colorimetric method for analyzing phosphoric acid leakage in phosphoric acid-doped polybenzimidazole membrane fuel cells is described. The developed method is based on the colorimetric determination from a rapid formation of moly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::417ee54d18c5652190ee50bb242c5106
https://doi.org/10.1016/j.jpowsour.2015.09.015
https://doi.org/10.1016/j.jpowsour.2015.09.015
Highly durable Pt/graphene oxide and Pt/C hybrid catalyst for polymer electrolyte membrane fuel cell
Publikováno v:
Journal of Power Sources. 248:1156-1162
We report a highly durable hybrid catalyst composed of Pt/graphene oxide (GO) and Pt/C catalyst for polymer electrolyte membrane fuel cell (PEMFC). The accelerated durability tests in half-cell and full cell systems shows that the addition of small a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef3c745abc2a1810d5bfac6e3e193cb0
https://doi.org/10.1016/j.jpowsour.2013.10.055
https://doi.org/10.1016/j.jpowsour.2013.10.055
Publikováno v:
International Journal of Hydrogen Energy. 39:966-973
Research on membrane electrode assemblies (MEA) is focused on reducing cost and increasing durability in polymer electrolyte membrane fuel cells (PEMFC). Development of the electrode structure and reduction of platinum (Pt) contents are studied to im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9e02e24078c35d854593570bc7fa2de
https://doi.org/10.1016/j.ijhydene.2013.10.142
https://doi.org/10.1016/j.ijhydene.2013.10.142
Publikováno v:
Journal of Power Sources. 226:320-328
Coolant leakage leads to decrease in performance during the operation of electric vehicles which make use of polymer electrolyte membrane fuel cells (PEMFC). This study examines the effects of various coolant leak conditions in 3-cell stack and singl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e885702088afd519c442bf07c8a5143d
https://doi.org/10.1016/j.jpowsour.2012.10.090
https://doi.org/10.1016/j.jpowsour.2012.10.090
Publikováno v:
International Journal of Hydrogen Energy. 37:17992-18000
Long-term durability of catalysts is considered as the most critical issue to commercialize the fuel cell vehicles. In this study, we showed highly durable CNT-supported Pt catalysts treated by simple low temperature hydrogen bubbling (LTHB). Even at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a9c56b41234ba6f73a9155f31778b3d
https://doi.org/10.1016/j.ijhydene.2012.09.088
https://doi.org/10.1016/j.ijhydene.2012.09.088
Publikováno v:
Materials Research Bulletin. 47:2760-2764
Effects of the surface functional groups of multi-walled carbon nanotubes (MWCNTs) as catalyst support for the durability of polymer electrolyte membrane fuel cells (PEMFCs) were examined at high Pt loading conditions. The amount of oxygen functional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::040a94d6433867b81531f0863180e0ce
https://doi.org/10.1016/j.materresbull.2012.04.057
https://doi.org/10.1016/j.materresbull.2012.04.057
Publikováno v:
Journal of Nanoscience and Nanotechnology. 12:5412-5417
In this study, carbon nanofiber (CNF) was used as a support in which 47.5 wt% Pt/CNFs catalyst was prepared by a modified polyol method. The platinum particle size and dispersion on the CNFs are approximately 2-4 nm as determined by X-ray diffractome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e72d600cb6f36fe276e08aeb3196da0
https://doi.org/10.1166/jnn.2012.6322
https://doi.org/10.1166/jnn.2012.6322
Publikováno v:
Journal of Nanomaterials, Vol 2012 (2012)
Polyol-free synthesis of highly loaded Pt catalysts on sulfuric-acid-treated graphene oxide (SGO) was reported. Sulfuric acid treatment increased the surface hydroxyl groups on graphene oxide (GO), which contributed to the reduction of Pt precursors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2f6c7c2fd1a7c11e6b0cd3211f1910e
https://doi.org/10.1155/2012/418737
https://doi.org/10.1155/2012/418737