Results 51 to 60 of about 603 (180)

Phase change of methanol solution in a microchannel for a reformer using low temperature exhaust heat

Nihon Kikai Gakkai ronbunshu, 2017
Compact power generation systems which consist of methanol reformer and Polymer Electrolyte Fuel Cell (PEFC) are greatly required as emergency power source.
Suguru UEMURA, Katuyuki FUKAI, Keisuke TABATA, Shuichiro HIRAI   +3 more
doaj   +1 more source

The Influence of Nafion Content on Catalytic Oxygen Reduction Performance of High Surface Carbons

ChemCatChem, Volume 18, Issue 3, 12 February 2026.
ABSTRACT High efficiency and selectivity of the electrocatalytic oxygen reduction reaction (ORR) requires fast proton, electron, and oxygen supply to the catalytic center. The kinetics of these processes depend largely on the preparation of the catalyst‐containing electrode.
Stefan Röher, Lairana Lima Duarte, Alexandra Apel, Julia Grothe, Stefan Kaskel, Inez M. Weidinger   +5 more
wiley   +1 more source

Development of a Short‐Term Forecasting Model for Tropical Cyclone Tracks Based on Ventilation Flow and Artificial Intelligence Algorithms

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract While research on forecasting tropical cyclone (TC) intensity via statistical methods is relatively abundant, studies on TC track forecasting using such methods remain scarce. Existing statistical TC track forecasts primarily rely on time‐series factors of TC motion; however, their efficacy diminishes significantly during TC track deflections,
Xin Liu, Jian Guan, Lu Liu, Jianing Feng, Hongxiong Xu, Yihong Duan   +5 more
wiley   +1 more source

A Relative Hydrophobicity‐Driven Framework for Liquid Water Transport in Overlapping Porous Transport Layers of Polymer Electrolyte Fuel Cells

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Conventional physics‐based fuel cell models have faced limitation in explaining the through‐plane liquid water distributions observed by state‐of‐the‐art imaging techniques. To elucidate these experimental findings, we advance a temperature‐dependent phase separation model (TDPSM) framework by introducing separate liquid transport equations for each ...
Sungjea Park, Junbeom Park, Jungrok Oh, Sukkee Um, Weixin Guan   +4 more
wiley   +1 more source

Political Science's Engagement With the Sustainability Challenge: A Semi‐Systematic Review of the Voluntary Sustainability Standards (VSS) Governance Literature

Sustainable Development, Volume 33, Issue S1, Page 459-474, November 2025.
ABSTRACT The implications of sustainable development are far reaching, and yet many areas of academic scholarship were slow to deeply engage with it. This is a problem because, in practical terms, it can generate a false sense of calm, of business as usual, and a failure to rise to the integrative challenge of balancing the trade‐offs across ...
Fred Gale, Daniel Goodwin, Heather Lovell, Hannah Murphy, Kim Beasy, Marion Schoen   +5 more
wiley   +1 more source

Development of a measurement technique for current-density in PEFC using planar surface coil as a NMR signal detector (Third report: Inversion analysis of current-density distribution generating in PEFC at case of current flowing in lamination direction)

Nihon Kikai Gakkai ronbunshu, 2014
In the second report, a method for measuring the spatial distribution of the electric current generated in a PEFC from the frequency shift of the Nuclear Magnetic Resonance (NMR) signal of water acquired by eight planar surface coils inserted into the ...
Kuniyasu OGAWA, Yasuo YOKOUCHI, Tomoyuki HAISHI, Kohei ITO   +3 more
doaj   +1 more source

Visualization of the Oxygen Partial Pressure on the Gas Diffusion Layer inside a Polymer Electrolyte Fuel Cell during Cell Operation at Temperatures Higher than 100 °C

ChemElectroChem, Volume 12, Issue 20, October 16, 2025.
The graphical abstract shows that liquid water as well as water vapor is present inside the catalyst layer (CL) and the gas diffusion layer (GDL) even at temperature above 100 °C, especially near the outlet as well as at the edges of the rib and under the rib.
Christopher L. Schreiber, Anna M. Kapulwa, Sonja Blaseio, Hui Jing Cham, Mehtap Oezaslan, Junji Inukai   +5 more
wiley   +1 more source

Impact of operation condition on temperature distribution in single cell of polymer electrolyte fuel cell operated at higher temperature than usual

Mechanical Engineering Journal, 2016
For improving performance of the stationary Polymer Electrolyte Fuel Cell (PEFC) system, the cell operating temperature up to 90°C will be preferred in Japan during the period from 2020 to 2030.
Akira NISHIMURA, Masato YOSHIMURA, Amira Hakimi MAHADI, Masafumi HIROTA, Mohan Lal KOLHE   +4 more
doaj   +1 more source

Transients of Water Distribution and Transport in PEFCs [PDF]

ECS Meeting Abstracts, 2008
Abstract not Available.
Irfan Hussaini, Chao-Yang Wang
openaire   +1 more source

Detection and Quantification of Over‐Humidification in Polymer Electrolyte Fuel Cells: Insights into Simulation, Imaging, and Sensors

Advanced Energy and Sustainability Research, Volume 6, Issue 9, September 2025.
This review highlights advanced methods for detecting and managing over‐humidification in polymer electrolyte fuel cells (PEFCs), emphasizing innovative sensors, simulation techniques, and imaging methods. By addressing the impact of water management on fuel‐cell performance and durability, this study outlines practical and sustainable solutions for ...
Maximilian Käfer, Viktor Hacker, Merit Bodner   +2 more
wiley   +1 more source