Results 21 to 30 of about 14,708 (307)

Reduced-dimensional models for straight-channel proton exchange membrane fuel cells [PDF]

, 2010
A comprehensive description of proton exchange membrane fuel cell (PEMFC) performance includes the transport phenomena, phase change and electrochemical reaction inside the several components, which possess disparate characteristics and together form a ...
Sui, P.C., Shah, Akeel A., Shah, A.A., Sui, P. C., Kim, Gwang-Soo, Djilali, Ned   +5 more
core   +1 more source

PEFC: Stacks, Systems, and Applications

CHIMIA, 2004
This article gives an overview on the research and development activities pursued in the area of polymer electrolyte fuel cell stacks and systems in Switzerland in 2004.
Felix N. Büchi, Jean-François Affolter, Stefan Camenzind, Niels Chmielewski, Philipp Dietrich, Michael Höckel, Martin Ruge, Marco Santis   +7 more
doaj   +1 more source

Synergistic Mn-Co catalyst outperforms Pt on high-rate oxygen reduction for alkaline polymer electrolyte fuel cells

Nature Communications, 2019
Alkaline polymer electrolyte fuel cells are promising power sources, but performance is limited by catalytic activity. Here the authors report a non-precious metal-based catalyst for electrocatalytic oxygen reduction that imparts outstanding fuel cell ...
Ying Wang, Yao Yang, Shuangfeng Jia, Xiaoming Wang, Kangjie Lyu, Yanqiu Peng, He Zheng, Xing Wei, Huan Ren, Li Xiao, Jianbo Wang, David A. Muller, Héctor D. Abruña, Bing Joe Hwang, Juntao Lu, Lin Zhuang   +15 more
doaj   +1 more source

Microstructure reconstruction and transport simulation in polymer electrolyte membrane fuel cells

, 2022
S.219-253The polymer electrolyte fuel cell (PEFC) consists of disparate porous media microstructures, e.g. catalyst layer, microporous layer, gas diffusion layer, as the key components for achieving the desired performance attributes.
Mukherjee, P.P., Becker, J., Glatt, E., Schulz, V.P., Wiegmann, A.   +4 more
core   +1 more source

Current-Distribution Measurement in Polymer Electrolyte Water Electrolysis Equipment and Polymer Electrolyte Fuel Cell Using NMR Sensor

Journal of Thermal Science and Technology, 2009
In a polymer electrolyte fuel cell (PEFC), the current density through the polymer electrolyte membrane (PEM) is distributed along the electrode on the membrane electrode assembly (MEA).
Yasuo YOKOUCHI, Kuniyasu OGAWA, Tomoyuki HAISHI, Kohei ITO   +3 more
doaj   +1 more source

Evaluate the Activation Effect according to the Voltage Range [PDF]

한국정밀공학회지, 2023
Polymer electrolyte membrane fuel cells (PEMFC) require activation to maximize their performance. Thus, an appropriate activation process is essential for the performance of the fuel cell.
Jung Soo Kim, Ho Jun Yoo, Ji Woong Jeon, Dong Kun Song, Ye Rim Kwon, Young Jo Lee, Seung Hyeok Hong, Su Min Lee, Da Hye Geum, Gu Young Cho   +9 more
doaj   +1 more source

Fabrication of bifunctional membrane electrode assemblies for unitised regenerative polymer electrolyte fuel cells

, 2006
Bifunctional membrane electrode assemblies have been fabricated using a screen printing technique, which demonstrate a repeatable and stable operation to cell current and voltages.
Pettersson, J, Harrison, DJ, Ramsey, BJ
core   +1 more source

Electrocatalyst for direct alcohol fuel cells

, 2022
S.795-807The direct conversion of methanol in acidic environment at platinum ruthenium catalysts is the standard process in today-s direct methanol fuel cells.
Jung, Florina, Jurzinsky, Tilman, Niether, C., Pinkwart, Karsten, Cremers, Carsten, Bach Delpeuch, A., Tübke, Jens   +6 more
core   +1 more source

Electrocatalytic asymmetric hydrogenation of α,β-unsaturated acids in a PEM reactor with cinchona-modified palladium catalysts

Electrochemistry Communications, 2020
We have developed an electrocatalytic asymmetric hydrogenation reaction using a proton-exchange membrane (PEM) reactor that employs a polymer electrolyte fuel cell and industrial electrolysis technologies.
Atsushi Fukazawa, Kenta Tanaka, Yasushi Hashimoto, Yasushi Sato, Mahito Atobe   +4 more
doaj   +1 more source

Temperature Control for a 5 kW Water-Cooled PEM Fuel Cell System for a Household Application

IEEE Access, 2019
Temperature control is indispensable for polymer electrolyte membrane fuel cell (PEMFC) systems to ensure its safety and efficiency when working continuously.
Wen-Jiang Zou, Young-Bae Kim
doaj   +1 more source