Results 71 to 80 of about 4,245 (208)
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 +4 more
doaj +1 more source
Finnish Forest Industry Companies Views on PEFC-certification [PDF]
, 2010 PEFCsertifiointijärjestelmän tunnettuus ja hyväksyttävyys on kuitenkin heikkoa kansainvälisillä markkinoilla. Erityisesti ympäristöjärjestöt ovat esittäneet kritiikkiä PEFC-sertifiointia kohtaan.
Lamberg, Laura
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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 +5 more
wiley +1 more source
Le cahier des charges d’exploitation PEFC pour la récolte du liège
, 2017 Le cahier des charges présenté dans cet article complète le cahier des charges national d’exploitation forestière de PEFC pour ce qui concerne l’exploitation du ...
PEFC
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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 +5 more
wiley +1 more source
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 +4 more
wiley +1 more source
Polymer Materials for Progress of PEFC
POLYMERS, 2003 電解質膜はPEFCのキーマテリアルである。イオン伝導性だけでなく,電極触媒の活性に大きな影響を与えてPEFCの性能を左右するNafionの開発とNafionを低級アルコールに溶かした溶液の開発は燃料電池の開発の中で大きなブレークスルーをもたらした。自動車用,家庭用として大規模にPEFCが普及するためにはイオン導電性,耐熱性,化学的安定性,機械的強度のさらなる向上などに加えて,大幅なコストダウンが望まれる。
openaire +3 more sources
ChemEngineering, 2019 Platinum group metal (PGM)-free catalysts for oxygen reduction reaction (ORR) have attracted increasing interest as potential candidates to replace Pt, in the view of a future widespread commercialization of polymer electrolyte fuel cell (PEFC) devices ...
Luigi Osmieri
doaj +1 more source
Development of PEFC for transportable applications
, 1996 Since FY1992, we have been developing PEFC technologies under NEDO`s R&D program. High power density and rapid start-up are essential requirements for transportable applications. Also, if reformed gas is used as fuel, the prevention of CO poisoning and improvement of response to loading are essential.
Hideo Maeda +2 more
openaire +2 more sources
PEFC Sertifiointi Ojaniemi Oy:lle : Alkuperäketjun menettelytapojen luonti [PDF]
, 2017 Tämän opinnäytetyön tarkoituksena oli luoda PEFC alkuperäseurannan menettelytapojen käsikirja Ojaniemi Oy:lle, jonka avulla Ojaniemi Oy voi hakea PEFC sertifikaattia, jolla se voi todistaa asiakkailleen että puu on peräisin kestävästi hoidetuista ...
Ojaniemi, Ville
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