Results 61 to 70 of about 550,628 (217)
New electrocatalysts for hydrogen-oxygen fuel cells [PDF]
, 1970 Platinum-silver, palladium-gold, and platinum-gold alloys serve as oxygen reduction catalysts in high-current-density cells. Catalysts were tested on polytetrafluoroethylene-bonded cathodes and a hydrogen anode at an operating cell temperature of 80 ...
Cattabriga, R. A. +3 more
core +1 more source
The Molecular Sieving of Propylene and Propane on SAPO-35 Molecular Sieve
NanomaterialsSelective adsorption is regarded as a promising alternative for propylene/propane separation. However, the similar physicochemical properties of these two components pose a challenge in developing adsorbents that simultaneously exhibit high selectivity ...
Yansi Tong +10 more
doaj +1 more source
The role of fuel cells in NASA's space power systems [PDF]
A history of the fuel cell technology is presented and compared with NASA's increasing space power requirements. The role of fuel cells is discussed in perspective with other energy storage systems applicable for space using such criteria as type of ...
Been, J. F.
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Novel ETFE based radiation grafted poly(styrene sulfonic acid-co-methacrylonitrile) proton conducting membranes with increased stability [PDF]
, 2009 Styrene radiation grafted ETFE based proton conducting membranes are subject to degradation under fuel cell operating conditions and show a poor stability. Lifetimes exceeding 250 h can only be achieved with crosslinked membranes.
Alkan Gursel, Selmiye +7 more
core +2 more sources
Technology Status: Fuel Cells and Electrolysis Cells [PDF]
The status of the baselined shuttle fuel cell as well as the acid membrane fuel cell and space-oriented water electrolysis technologies are presented. The more recent advances in the alkaline fuel cell technology area are the subject of a companion paper.
Mcbryar, H.
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International Journal of Electrochemical Science, 2018 The Publisher regrets that this article was an accidental duplicate of an article that has already been published in Int. J. Electrochem. Sci., 12 (2017) 5818 - 5827). Therefore, the duplicated article has been withdrawn from Int. J. Electrochem.
Yan Rao +4 more
doaj +1 more source
Graphdiyne as a Promising Substrate for Stabilizing Pt Nanoparticle Catalyst
, 2015 At present, Pt nanoparticle catalysts in fuel cells suffer from aggregation and loss of chemical activity. In this work, graphdiyne, which has natural porous structure, was proposed as substrate with high adsorption ability to stabilize Pt nanoparticles.
Lin, Zheng-Zhe
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Recent Developments in Mems-Based Micro Fuel Cells [PDF]
, 2006 Micro fuel cells ($\mu$-FC) represent promising power sources for portable applications. Today, one of the technological ways to make $\mu$-FC is to have recourse to standard microfabrication techniques used in the fabrication of micro electromechanical ...
Gauthier-Manuel, B., Pichonat, T.
core +4 more sources
The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis
NanomaterialsThe utilization of renewable energy for hydrogen production presents a promising pathway towards achieving carbon neutrality in energy consumption.
Fan Zhang +10 more
doaj +1 more source
Journal of Advanced CeramicsAchieving thermal cycle stability is an imperative challenge for the successful commercialization of solid oxide cell (SOC) technology. Ruddlesden‒Popper (R‒P) oxides, whose thermal expansion coefficient (TEC) is compatible with common electrolytes, are ...
Qihang Ren +8 more
doaj +1 more source