Results 21 to 30 of about 888,007 (201)

Enhancement of Proton Transport in an Oriented Polypeptide Thin Film [PDF]

, 2013
Proton transport properties of a partially protonated poly(aspartic acid)/sodium polyaspartate (P-Asp) were investigated. A remarkable enhancement of proton conductivity has been achieved in the thin film. Proton conductivity of 60-nm-thick thin film
Matsui, Jun, Miyashita, Tokuji, Yugami, Hiroo, Nagao, Yuki, Hiramatsu, Hirotsugu, Hitoshi Yamamoto, Tokuji Miyashita, Hirotsugu Hiramatsu, Hiroo Yugami, Yuki Nagao, Takashi Abe, Yamamoto, Hitoshi, Abe, Takashi, Noriko Sata, Sata, Noriko, Jun Matsui   +15 more
core   +1 more source

Proton conductivity enhancement in oriented, sulfonated polyimide thin films [PDF]

, 2014
Studies of proton transport in confined thin polymer electrolytes are essential for providing additional information regarding the structure-property relationships of such materials.
Nagano, Shusaku, Nagao, Yuki, Krishnan, Karthik, Iwatsuki, Hiroko, Hara, Mitsuo   +4 more
core   +1 more source

Anhydrous proton conduction in cellulose nanofiber–heterocyclic molecule composite materials [PDF]

RSC Advances
TEMPO (2,2,6,6-tetramethylpiperidine-1-oxylradical)-oxidized cellulose nanofibers (CNFs) form rigid rod-like structures and possess carboxyl groups on the surface of the nanofibers.
Masanori Yamada, Hiroki Shibata
doaj   +1 more source

Proton Conductivity Enhancement at High Temperature on Polybenzimidazole Membrane Electrolyte with Acid-Functionalized Graphene Oxide Fillers

Membranes, 2022
Graphene oxide (GO) and its acid-functionalized form are known to be effective in enhancing the proton transport properties of phosphoric-acid doped polybenzimidazole (PA-doped PBI) membranes utilized in high-temperature proton exchange membrane fuel ...
Raja Rafidah Raja Sulaiman, Rashmi Walvekar, Wai Yin Wong, Mohammad Khalid, Ming Meng Pang   +4 more
doaj   +1 more source

High H- ionic conductivity in barium hydride [PDF]

, 2015
The authors thank EPSRC for support through a Platform Grant and the Royal Society for a Wolfson Merit award.With hydrogen being seen as a key renewable energy vector, the search for materials exhibiting fast hydrogen transport becomes ever more ...
Verbraeken, Maarten Christiaan, Irvine, John Thomas Sirr, Suard, Emmanuelle, Cheung, Chaksum   +3 more
core   +1 more source

Proton conductivity in acceptor-doped lanthanide based pyrochlore oxides [PDF]

, 2009
A high interest in developing new materials for SOFC applications in the temperature range of approximately 200–500 degrees C has been growing lately. The lower activation energies for proton (H+) mobility can give higher conductivity in this temperature
Knee, Christopher S,, Eriksson, Sten,, Eurenius, Karinh,, Ahmed, Istaq, Ahlberg, Elisabet, Eriksson, Sten G., Knee, Christopher,, Knee, Christopher, Eriksson, Sten, Eriksson, Sten G.,, Eurenius, Karinh, Ahmed, Istaq,, Knee, Christopher S, Ahlberg, Elisabet,   +13 more
core   +1 more source

Proton and molecular permeation through the basal plane of monolayer graphene oxide

Nature Communications, 2023
Two-dimensional (2D) materials offer a prospect of membranes that combine negligible gas permeability with high proton conductivity and could outperform the existing proton exchange membranes used in various applications including fuel cells.
Z. F. Wu, P. Z. Sun, O. J. Wahab, Y. T. Tan, D. Barry, D. Periyanagounder, P. B. Pillai, Q. Dai, W. Q. Xiong, L. F. Vega, K. Lulla, S. J. Yuan, R. R. Nair, E. Daviddi, P. R. Unwin, A. K. Geim, M. Lozada-Hidalgo   +16 more
doaj   +1 more source

Synthesis, Sintering, and Electrical Properties of BaCe0.9−xZrxY0.1O3−δ [PDF]

, 2008
BaCe0.9−xZrxY0.1O3−δ powders were synthesized by a solid-state reaction. Different contents of cerium and zirconium were studied. Pellets were sintered using either conventional sintering in air at 1700◦C or the Spark Plasma Sintering (SPS) technique ...
Caboche, Gilles, Estournès, Claude, Ricote, Sandrine, Ricote, S., Estournes, C., Caboche, G., Bonanos, Nikolaos   +6 more
core   +1 more source

Novel co-doped protonic conductors BaLa1.9Sr0.1In1.95M0.05O6.925 with layered perovskite structure

Chimica Techno Acta, 2023
Active development of electrochemical devices such as proton-conducting fuel cells and electrolyzers should ensure sustainable environmental development.
Anzhelika Bedarkova, Nataliia Tarasova, Irina Animitsa, Ekaterina Abakumova, Irina Fedorova, Polina Cheremisina, Evgenia Verinkina   +6 more
doaj   +1 more source

Differences in Water Dynamics between the Hydrated Chitin and Hydrated Chitosan Determined by Quasi-Elastic Neutron Scattering

Bioengineering, 2023
Recently, it was reported that chitin and chitosan exhibited high-proton conductivity and function as an electrolyte in fuel cells. In particular, it is noteworthy that proton conductivity in the hydrated chitin becomes 30 times higher than that in the ...
Yuki Hirota, Taiki Tominaga, Takashi Kawabata, Yukinobu Kawakita, Yasumitsu Matsuo   +4 more
doaj   +1 more source