Results 21 to 30 of about 108,847 (296)

High Total Proton Conductivity in Large-Grained Yttrium-Doped Barium Zirconate [PDF]

open access: yes, 2009
Barium zirconate has attracted particular attention among candidate proton conducting electrolyte materials for fuel cells and other electrochemical applications because of its chemical stability, mechanical robustness, and high bulk proton conductivity.
Haile, Sossina M.   +2 more
core   +1 more source

Processing of yttrium-doped barium zirconate for high proton conductivity [PDF]

open access: yes, 2007
The factors governing the transport properties of yttrium-doped barium zirconate (BYZ) have been explored, with the aim of attaining reproducible proton conductivity in well-densified samples.
Babilo, Peter   +2 more
core   +1 more source

Preparation and Proton Exchange Properties of GO Grafting modified Cross-linked Membranes

open access: yesInternational Journal of Electrochemical Science, 2018
The cross-linked membranes were prepared with DS 68% SPEEK and epoxy resin. Sulfonated graphite oxide was grafted into SPEEK main bonds to study the sulfonic acid groups on the impact of proton exchange properties. Using solartron electrochemical testing
Zhengping Zhao   +4 more
doaj   +1 more source

Hybrid Composite Membrane of Phosphorylated Chitosan/Poly (Vinyl Alcohol)/Silica as a Proton Exchange Membrane

open access: yesMembranes, 2021
Chitosan is one of the natural biopolymers that has been studied as an alternative material to replace Nafion membranes as proton change membranes.
Nur Adiera Hanna Rosli   +4 more
doaj   +1 more source

Insights into the Nature of Synergistic Effects in Proton-Conducting 4,4−1H,1H-Bitriazole-Poly(ethylene oxide) Composites [PDF]

open access: yes, 2009
A nitrogen-containing heterocycle (NCH), 4,4-1H-1H-bi-1,2,3-triazole (bitriazole), capable of mimicking the hydrogen bonding of water in the solid state is synthesized and its ability to conduct protons in the presence of poly(ethylene oxides) under ...
Alabi, Christopher A.   +3 more
core   +1 more source

Fabrication of Composite Membrane Based on Silicotungstic Heteropolyacid Doped Polybenzimidazole for High Temperature PEMFC

open access: yesInternational Journal of Electrochemical Science, 2012
Stable proton conducting composite membranes (CM1-CM3) based on polybenzimidazole (PBI) and various weight percent (35, 50 and 65 wt %) of inorganic hetero poly acids (IHA) were prepared by dissolving PBI in methanesulfonic acid and required amount of ...
Jin-Woo Lee   +7 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

Space–charge theory applied to the grain boundary impedance of proton conducting BaZr0.9Y0.1O3−δ. [PDF]

open access: yes, 2010
The specific grain interior and grain boundary conductivities, obtained from impedance spectroscopy and the brick layer model, are reported for BaZr0.9Y0.1O3−δ as a function of pO2 and temperature. pO2-dependencies were indicative of dominating ionic and
Estournès, Claude   +6 more
core   +1 more source

Effect of lattice volume and strain on the conductivity of BaCeY-oxide ceramic proton conductors

open access: yes, 2012
In-situ electrochemical impedance spectroscopy was used to study the effect of lattice volume and strain on the proton conductivity of the yttrium-doped barium cerate proton conductor by applying the hydrostatic pressure up to 1.25 GPa.
Artur Braun   +26 more
core   +1 more source

Proton Conduction via Water Bridges Hydrated in the Collagen Film

open access: yesJournal of Functional Biomaterials, 2020
Collagen films with proton conduction are a candidate of next generation of fuel-cell electrolyte. To clarify a relation between proton conductivity and formation of water networks in the collagen film originating from a tilapia’s scale, we ...
Hiroshi Matsui, Yasumitsu Matsuo
doaj   +1 more source

Home - About - Disclaimer - Privacy