Results 21 to 30 of about 71,345 (274)

Proton dynamics in phosphotungstic acid impregnated mesoporous silica proton exchange membrane materials

Green Energy & Environment, 2017
Phosphotungstic acid is an excellent proton conductor that can be incorporated into porous supports, and nanocomposite proton exchange membrane materials made from mesoporous silica impregnated with phosphotungstic acid have been suggested for use in ...
Krystina Lamb, Richard A. Mole, Dehong Yu, Roland de Marco, John R. Bartlett, Sarah Windsor, San Ping Jiang, Jin Zhang, Vanessa K. Peterson   +8 more
doaj   +1 more source

Polarization Diagnostics for Cool Core Cluster Emission Lines [PDF]

, 2013
The nature of the interaction between low-excitation gas filaments at ~104 K, seen in optical line emission, and diffuse X-ray emitting coronal gas at ~107 K in the centers of galaxy clusters remains a puzzle.
Aboudarham, Arp, Balança, Böhringer, Cheung, Conselice, Donahue, Donahue, E. T. Meyer, G. M. Voit, Henoux, Hippler, Hénoux, J. E. Pringle, J. H. Hough, Kauppila, Keim, Landi Degl'Innocenti, Lin, López Ariste, M. Cracraft, M. Donahue, Madrid, McDonald, McLaughlin, McNamara, Miller, N. Manset, Perlman, Perlman, R. F. Carswell, Sabra, Sabra, Sparks, Sparks, Sparks, Sparks, Spitzer, Voit, W. B. Sparks, Werner   +40 more
core   +2 more sources

An interacting spin flip model for one-dimensional proton conduction [PDF]

, 2002
A discrete asymmetric exclusion process (ASEP) is developed to model proton conduction along one-dimensional water wires. Each lattice site represents a water molecule that can be in only one of three states; protonated, left-pointing, and right-pointing.
Deamer D W, Derrida B, Derrida B, Derrida B, Eisenman G, Essler F H, Grotthuss C J T, Kandel D, Karimipour V, Krug J, Kukla V, MacDonald J T, MacDonald J T, Mallick K, Phillips L R, Schreckenberg M, Schumaker M F, Tom Chou, Vilfan A   +18 more
core   +1 more source

Three-dimensional protonic conductivity in porous organic cage solids

Nature Communications, 2016
Proton conduction is a fundamental process for fuel cell development, but three-dimensional proton conduction in crystalline porous solids is rare. Here, the authors report organic molecular cages in which the structure imposes three-dimensional proton ...
Ming Liu, Linjiang Chen, Scott Lewis, Samantha Y. Chong, Marc A. Little, Tom Hasell, Iain M. Aldous, Craig M. Brown, Martin W. Smith, Carole A. Morrison, Laurence J. Hardwick, Andrew I. Cooper   +11 more
doaj   +1 more source

A structurally modified 85SiO2–9P2O5–6TiO2 system and its dynamic dielectric behavior–a starting point for hydrogen detection

Journal of Materials Research and Technology, 2021
Novel proton conducting materials with composition 85SiO2–9P2O5–6TiO2, modified by addition of liquid xH3PO4 in different amounts xH3PO4 = 0; 17; 35; 52 mmol, were synthesized via sol–gel route.
O. Kostadinova, V. Boev, V. Ilcheva, B. Burdin, T. Petkova, L.C. Costa   +5 more
doaj   +1 more source

Interfacial and Internal Proton Conduction of Weak-acid Functionalized Styrene-based Copolymer with Various Carboxylic Acid Concentrations

Electrochemistry, 2021
Investigation of interfacial proton transport is necessary to elucidate biological systems. As commonly found in biomaterials, the carboxylic acid group was proven to act as a proton-conducting group.
Athchaya SUWANSOONTORN, Katsuhiro YAMAMOTO, Shusaku NAGANO, Jun MATSUI, Yuki NAGAO   +4 more
doaj   +1 more source

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

, 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, Haile, Sossina M., Uda, Tetsuya   +2 more
core   +1 more source

Proton and Oxygen Ionic Conductivity of Doped Ceria- Carbonate Composite by Modified Wagner Polarization

International Journal of Electrochemical Science, 2012
The impressive ionic conductivity and tunable conduction behaviors have made the ceria-carbonate composite an attractive electrolyte for low temperature ceramic fuel cells. However, the conduction mechanism is not yet well studied.
Liangdong Fan, Guoquan Zhang, Mingming Chen, Chengyang Wang, Jing Di, Bin Zhu   +5 more
doaj   +1 more source

Surface Protonic Conduction on Oxide Ceramics: Mechanism, Materials, and Method for Characterization

Advanced Materials Interfaces, 2023
Surface protonic conduction originates from a common phenomenon of surface adsorption of water, which occurs almost everywhere when the temperature and humidity are properly controlled.
Jie Gu, Lulu Jiang, Sara Adeeba Ismail, Hui Guo, Donglin Han   +4 more
doaj   +1 more source

Thermal conductivity measurements of proton-heated warm dense aluminum. [PDF]

, 2017
Thermal conductivity is one of the most crucial physical properties of matter when it comes to understanding heat transport, hydrodynamic evolution, and energy balance in systems ranging from astrophysical objects to fusion plasmas.
Beg, FN, Collins, GW, Fernandez-Panella, A, Freeman, RR, Hua, R, Kemp, GE, Kim, J, King, J, Link, A, Marinak, M, McGuffey, C, McKelvey, A, Ping, Y, Shepherd, R, Sio, H, Sterne, PA   +15 more
core   +2 more sources