Results 31 to 40 of about 179,969 (212)

PEMBUATAN DAN KARAKTERISASI MEMBRAN KOMPOSIT KITOSAN-SODIUM ALGINAT TERFOSFORILASI SEBAGAI PROTON EXCHANGE MEMBRANE FUEL CELL (PEMFC)

open access: yesJurnal Kimia Riset, 2016
Abstrak Di era globalisasi ini, kebutuhan bahan bakar fosil semakin meningkat dan ketersediannya semakin menipis. Oleh karena itu, dibutuhkan bahan bakar alternatif seperti Proton Exchange Membrane Fuel Cell (PEMFC).
Siti Wafiroh   +2 more
doaj   +1 more source

Reduced complexity models for water management and anode purge scheduling in DEA operation of PEMFCs [PDF]

open access: yes, 2010
In this work, the dynamic behavior of Fuel Cell operation under Dead-Ended Anode conditions is shown. A DEA can be fed with dry hydrogen, since water crossing through the membrane is sufficient to humidify the fuel.
Siegel, Jason B.   +3 more
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

Novel PVA/La2Ce2O7 hybrid nanocomposite membranes for application in proton exchange membrane fuel cells [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2014
Proton exchange membrane fuel cells (PEMFCs) are electrochemical devices that show the highest power densities compared to the other type of fuel cell.
Mehran Javanbakht   +3 more
doaj   +1 more source

Collective exchange processes reveal an active site proton cage in bacteriorhodopsin [PDF]

open access: yes, 2020
Proton translocation across membranes is vital to all kingdoms of life. Mechanistically, it relies on characteristic proton flows and modifications of hydrogen bonding patterns, termed protonation dynamics, which can be directly observed by fast magic ...
Brünig, Florian N.   +5 more
core   +1 more source

Electrochemical Properties of SPEEK/Epoxy Semi-interpenetrating Network Composites as Proton Exchange Membrane

open access: yesInternational Journal of Electrochemical Science, 2018
The DS 68% SPEEK composite membranes with were prepared by post-sulfonation. Using diethylenetriamine as the epoxy cross-linking agent, which is uniformly distributed in SPEEK, to form SPEEK/epoxy semi-interpenetrating network structure and explore the ...
Zhengping Zhao   +5 more
doaj   +1 more source

Studies on the SPEEK membrane with low degree of sulfonation as a stable proton exchange membrane for fuel cell applications [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2017
Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC).
Mohammad Javad Parnian   +2 more
doaj   +1 more source

Load profile effect on durability of proton exchange membrane fuel cells [PDF]

open access: yes, 2019
Proton Exchange Membrane Fuel Cells (PEMFC) are a promising technology for substitution of hydrocarbon powerdrives and battery based electrical supply systems.
Aguilar Plazaola, José Agustín   +1 more
core  

Novel ETFE based radiation grafted poly(styrene sulfonic acid-co-methacrylonitrile) proton conducting membranes with increased stability [PDF]

open access: yes, 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

Investigating the Sulfonated Chitosan/Polyvinylidene Fluoride-Based Proton Exchange Membrane with fSiO2 as Filler in Microbial Fuel Cells

open access: yesMembranes, 2023
Chitosan (CS), a promising potential biopolymer with exquisite biocompatibility, economic viability, hydrophilicity, and chemical modifications, has drawn interest as an alternative material for proton exchange membrane (PEM) fabrication.
Gowthami Palanisamy   +3 more
doaj   +1 more source

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