Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Byeong-Heon Jeong"'
Publikováno v:
International Journal of Hydrogen Energy. 42:11644-11653
A significantly challenging issue in polymer electrolyte fuel cells (PEFCs) is the insufficient durability of the membrane electrode assembly (MEA) electrodes caused by crack formation and growth. A decrease in interconnections of the electrical path
Autor:
Bismark Mensah, Jou-Hyeon Ahn, Gopi Sathi Shibulal, Yong Hwan Yoo, Changwoon Nah, Bo Ki Hong, Byeong-Heon Jeong, Seung Gyeom Kim
Publikováno v:
International Journal of Hydrogen Energy. 40:10627-10635
Ethylene-propylene-diene-termonomer (EPDM) rubber based fuel cell gasket compounds have been designed and explored the effects of various vulcanization systems on different properties. Three types of sulphur-accelerated vulcanization systems such as
Publikováno v:
Journal of Power Sources. 270:342-348
Although the adhesion between the macro-porous substrate (MPS) and micro-porous layer (MPL) of a gas diffusion layer (GDL) is a critical factor that affects the reliability and durability of proton exchange membrane fuel cells, systematic studies qua
Autor:
Byeong-Heon Jeong, Bo Ki Hong, Sanwi Kim, Jae-Han Kim, Kyung-Lim Jang, Taek-Soo Kim, Jong-Gil Oh
Publikováno v:
ACS applied materialsinterfaces. 8(24)
Fundamental understanding of the mechanical behavior of polymer electrolyte fuel cell electrodes as free-standing materials is essential to develop mechanically robust fuel cells. However, this has been a significant challenge due to critical difficu
Publikováno v:
Journal of Nanoparticle Research. 11:1795-1803
Here, we present physical–chemical properties of Linde type A (LTA) zeolite crystals synthesized via conventional hydrothermal and microwave heating methods. Both heating methods produced LTA crystals that were sub-micron in size, highly negatively
Publikováno v:
Journal of Materials Research. 24:1624-1631
Hybrid zeolite-polyamide thin film nanocomposite (TFN) reverse osmosis membranes were synthesized by incorporating Linde type A (LTA)-type zeolite molecular sieve nanocrystals in the interfacial polymerization reaction used to form polyamide thin fil
Publikováno v:
Journal of Membrane Science. 314:33-49
Here, we model the effects of fouling on the performance of a reverse osmosis (RO) system treating micro-filtered secondary effluent. The model considers system properties, water quality, and transport phenomena. The model is fitted to operating data
Impacts of reaction and curing conditions on polyamide composite reverse osmosis membrane properties
Publikováno v:
Journal of Membrane Science. 311:34-45
Here we report on the impacts of organic solvent properties, reaction conditions, and curing conditions on polyamide composite reverse osmosis membrane separation performance, film structure, and interfacial properties. We provide direct experimental
Autor:
Anna Jawor, Gil Hurwitz, Yushan Yan, Arun Subramani, Byeong-Heon Jeong, Xiaofei Huang, A. K. Ghosh, Eric M.V. Hoek
Publikováno v:
Journal of Membrane Science. 294:1-7
Here, we report on a new concept for formation of mixed matrix reverse osmosis membranes by interfacial polymerization of nanocomposite thin films in situ on porous polysulfone supports. Nanocomposite films created for this study comprise NaA zeolite
Autor:
Byeong Heon Jeong, Dinesh Kumar, Seung Gyeom Kim, Dong Kwon Lim, Changwoon Nah, Bismark Mensah
Publikováno v:
Journal of Applied Polymer Science. 132
The graphene oxide (GO) was prepared by sonication-induced exfoliation from graphite oxide, which was produced by oxidation from graphite flakes with a modified Hummer's method. The GO was then treated by hydrazine to obtain reduced graphene oxide (r