Results 251 to 260 of about 108,847 (296)
Some of the next articles are maybe not open access.
Materials Research Bulletin, 1982
Abstract Protonic conduction in zeolites is optimized. The approach is based on a vehicle-mechanism for the transport process. The parameters controlling protonic conduction are discussed. Fully hydrated “NH4-zeolite A” has a room temperature conductivity of 2×10 −3 Ω −1 cm −1 .
K.D. Kreuer, W. Weppner, A. Rabenau
openaire +1 more source
Abstract Protonic conduction in zeolites is optimized. The approach is based on a vehicle-mechanism for the transport process. The parameters controlling protonic conduction are discussed. Fully hydrated “NH4-zeolite A” has a room temperature conductivity of 2×10 −3 Ω −1 cm −1 .
K.D. Kreuer, W. Weppner, A. Rabenau
openaire +1 more source
The Chemical Record, 2020
AbstractProton conductivity has been traditionally investigated with various materials such as organic polymers, metal oxides, and other inorganic and organic compounds because of their potential application in the electrochemical devices. In particular, during the last decade, crystalline porous coordination polymers (PCPs) or metal‐organic frameworks
Daniil I. Kolokolov +2 more
openaire +2 more sources
AbstractProton conductivity has been traditionally investigated with various materials such as organic polymers, metal oxides, and other inorganic and organic compounds because of their potential application in the electrochemical devices. In particular, during the last decade, crystalline porous coordination polymers (PCPs) or metal‐organic frameworks
Daniil I. Kolokolov +2 more
openaire +2 more sources
Hexameric polyoxotantalate with proton conduction properties
Chemical Communications, 2023The 1 has the highest nuclearity transition metal cluster in the POTa field, is major breakthrough in the synthesis of POTa. The polyanion can be described as six {Ta6O19} linked by {Fe10.7Ta1.3} cluster. And 1 has excellent proton conductivity.
Hanhan Chen +5 more
openaire +2 more sources
ACS Applied Materials & Interfaces
Successive proton conduction channels are constructed with the spin coating method in flexible proton exchange membranes (PEMs). In this research, phosphoric acid (PA) molecules are immobilized in the multilayered microstructure of Kevlar nanofibers and polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SEBS) polymer molecular chains.
Qingquan Li +6 more
openaire +2 more sources
Successive proton conduction channels are constructed with the spin coating method in flexible proton exchange membranes (PEMs). In this research, phosphoric acid (PA) molecules are immobilized in the multilayered microstructure of Kevlar nanofibers and polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SEBS) polymer molecular chains.
Qingquan Li +6 more
openaire +2 more sources
Protonic conduction in NH4H2PO4
Journal of Solid State Chemistry, 1974Abstract The conductivity of ammonium dihydrogen phosphate has been measured as a function of temperature and dopant concentration. A previously disputed break in the log conductivity vs reciprocal temperature plots has been observed. The activation energy is in agreement with previous work on NH 4 H 2 PO 4 .
Charles T. Perrino, Paul Wentrcek
openaire +1 more source
Protonic conductivity in hydrates
Solid State Ionics, 1988The protonic conductivity of three acid hydrates, HUO2PO4·4H2O, Ce(HPO4)2·nH2O,V2O5·nH2O has been studied as a function of the partial pressure of water. The evolution of their conductivity is related to experimental water adsorption isotherms and to the theoretical Brunauer adsorption isotherms.
openaire +1 more source
Conductivity and intermolecular interactions in proton‐conducting gel electrolytes
Journal of Applied Polymer Science, 2014ABSTRACTProton‐conducting gel electrolytes based on poly(methyl methacrylate) (PMMA), poly(vinylidene fluoride) (PVdF), and mixtures of PMMA with PVdF or poly(vinyl chloride) doped by acid solutions in aprotic solvents were synthesized and are discussed in this article.
Liudmila E. Shmukler +3 more
openaire +1 more source
ACS Applied Materials & Interfaces, 2019
Metal-organic frameworks (MOFs), as newly emerging materials, show compelling intrinsic structural features, e.g., the highly crystalline nature and designable and tunable porosity, as well as tailorable functionality, rendering them suitable for proton-conducting materials. The proton conduction of MOF is significantly improved using the postsynthesis
Hong-Bin Luo +5 more
openaire +2 more sources
Metal-organic frameworks (MOFs), as newly emerging materials, show compelling intrinsic structural features, e.g., the highly crystalline nature and designable and tunable porosity, as well as tailorable functionality, rendering them suitable for proton-conducting materials. The proton conduction of MOF is significantly improved using the postsynthesis
Hong-Bin Luo +5 more
openaire +2 more sources
Protonic conduction in Ba2In2O5
Solid State Ionics, 1995Abstract Protonic conduction in Ba 2 In 2 O 5 was studied by conductivity and EMF measurements as a function of temperature and oxygen activity. Evidence for protonic conduction was found in this material in moist atmospheres, especially at low temperatures.
openaire +1 more source
Proton Conduction in KH2PO4 Modified by Proton Irradiation
Journal of the Korean Physical Society, 2008The proton conductivity of KH2PO4 (KDP) was modi ed by means of proton irradiation. Our neutron di raction and high-resolution 1H nuclear magnetic resonance measurements indicate that modi cation in the O O bond length in the KDP system induced by the proton-beam treatment is responsible for the change in the proton conduction, which is accompanied by ...
In-Hwan Oh +3 more
openaire +1 more source