Results 31 to 40 of about 21,338 (294)

Surface proton transport of fully protonated poly(aspartic acid) thin films on quartz substrates [PDF]

, 2014
Thin film structure and the proton transport property of fully protonated poly(aspartic acid) (P-Asp100) have been investigated. An earlier study assessed partially protonated poly(aspartic acid), highly oriented thin film structure and enhancement of ...
Nagao, Yuki, Kubo, Takahiro
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

Synthesis of oligomeric poly[(1, 2-propanediamine)-alt-(oxalic acid)] and anomalous proton conductivities of the thin films [PDF]

, 2008
New proton-conductive polyamide oligomers, oligomeric poly[(1,2-propanediamine)-alt-(oxalic acid)], were synthesized to investigate the proton transport properties of bulk and thin films. The obtained oligomers were characterized by the X-ray diffraction,
Iguchi, Fumitada, Yugami, Hiroo, Nagao, Yuki, Yuki Nagao, Naito, Nobuhiro, Noriko Sata, Sata, Noriko, Fumitada Iguchi, Nobuhiro Naito, Hiroo Yugami   +9 more
core   +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

Proton transport properties of poly (aspartic acid) with different average molecular weights [PDF]

, 2010
We synthesized seven partially protonated poly(aspartic acids)/sodium polyaspartates (P-Asp) with different average molecular weights to study their proton transport properties.
Matsui, Jun, Miyashita, Tokuji, Nagao, Yuki, Yuki Nagao, Ogawa, Tomoyuki, Imai, Yuzuru, Jun Matsui, Tomoyuki Ogawa, Tokuji Miyashita, Yuzuru Imai   +9 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

Nature of Electronic Conduction in “Pseudocapacitive” Films: Transition from the Insulator State to Band-Conduction [PDF]

, 2019
The transition between the insulator state and the band-conducting state is investigated by means of cyclic voltammetry in cobalt oxide porous film electrodes in phosphate-buffered solutions.
Jean-Michel Savéant (1499617), Cyrille Costentin (1499620), Thomas R. Porter (294562)   +2 more
core   +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

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

Water-Free Proton Conduction in Discotic Pyridylpyrazolate-based Pt(II) and Pd(II) Metallomesogens [PDF]

, 2016
In this work we report on water-free proton conductivity in liquid-crystal pyridylpyrazolate-based Pt(II) and Pd(II) complexes [M(pzR(n,n)py)2] (pzR(n,n)py = 3-(3,5-dialkyloxyphenyl)-5-(pyridin-2-yl)pyrazolate, R(n,n) = C6H3(OCnH2n+1)2; n = 4, 12, 16, M =
Mercedes Cano, Sobrados, Isabel, Rivera Calzada, Alberto Carlos, Isabel Sobrados, Campo Santillana, José Antonio, Sanz, Jesús, Virginia Diez-Gómez, Alberto Rivera-Calzada, Rainer Schmidt, José A. Campo, Schmidt, Rainer, Cristián Cuerva, Diez-Gómez, Virginia, Jesús Sanz, Cuerva de Alaiz, Cristian, Cano Esquivel, María Mercedes   +15 more
core   +1 more source