Results 31 to 40 of about 126,687 (209)

Proton transport for fuel cells [PDF]

open access: yes, 2010
No ...
Haile, Sossina M., Pintauro, Peter N.
core   +1 more source

Novel composite Nafion membranes modified with copper phthalocyanine tetrasulfonic acid tetrasodium salt for fuel cell application

open access: yesJournal of Materiomics, 2019
In this paper, Nafion membrane was firstly modified by copper phthalocyanine tetrasulfonic acid tetrasodium salt (CuTSPc) to prepare the Nafion/CuTSPc-x composite membranes.
Yanan Wei   +7 more
doaj   +1 more source

Ionomer Membranes Produced from Hexaarylbenzene-Based Partially Fluorinated Poly(arylene ether) Blends for Proton Exchange Membrane Fuel Cells

open access: yesMembranes, 2022
In this study, a series of high molecular weight ionomers of hexaarylbenzene- and fluorene-based poly(arylene ether)s were synthesized conveniently through condensation and post-sulfonation modification.
Tzu-Sheng Huang   +6 more
doaj   +1 more source

Real-time monitoring of proton exchange membrane fuel cell stack failure [PDF]

open access: yes, 2016
Uneven pressure drops in a 75-cell 9.5-kWe proton exchange membrane fuel cell stack with a U-shaped flow configuration have been shown to cause localised flooding.
Brandon, NP   +5 more
core   +2 more sources

Uptake of Ca2+ by isolated secretory vesicles from adrenal medulla [PDF]

open access: yes, 1982
Intact secretory vesicles isolated from bovine adrenal medulla contain 94 nmol Na+ per mg of protein, and Ca2+ influx into the vesicles is inhibited by increasing concentrations of extravesicular Na+ (but not of K+, Li+ or choline+) or by addition of the
Bashford   +19 more
core   +1 more source

Performance of a membrane humidifier for a proton exchange membrane fuel cell

open access: yes工程科学学报, 2022
The liquid water produced by an electrochemical reaction at the cathode of a proton exchange membrane fuel cell blocks the pores in the gas diffusion layer, resulting in “water flooding.” At the same time, membrane dehydration leads to serious ohmic ...
Zhi-yuan LI   +4 more
doaj   +1 more source

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

open access: yes, 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.
Harrison, DJ, Pettersson, J, Ramsey, BJ
core   +1 more source

Flexible Four-in-one Micro Sensor for Reliability and 100-hour Durability Testing

open access: yesInternational Journal of Electrochemical Science, 2015
By using micro-electro-mechanical systems (MEMS), this work develops flexible four-in-one (temperature, voltage, current and flow) micro sensor on a flexible substrate. The flexible four-in-one micro sensor use polyimide as the protective layer, owing to
Chi-Yuan Lee   +6 more
doaj   +1 more source

Microscopic Monitoring of Local Temperature in the High Temperature Proton Exchange Membrane Fuel Cell Stack

open access: yesInternational Journal of Electrochemical Science, 2013
The non-uniform distributions of internal temperature in a membrane electrode assembly (MEA) of proton exchange membrane fuel cell (PEMFC) stack affect not only the reactions that occur in it, but also its performance and lifetime.
Chi-Yuan Lee   +4 more
doaj   +1 more source

Multi-functional anodes boost the transient power and durability of proton exchange membrane fuel cells. [PDF]

open access: yes, 2020
Proton exchange membrane fuel cells have been regarded as the most promising candidate for fuel cell vehicles and tools. Their broader adaption, however, has been impeded by cost and lifetime.
Cai, Mei   +14 more
core  

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