Results 11 to 20 of about 107,629 (241)

SPEEK and SPPO Blended Membranes for Proton Exchange Membrane Fuel Cells

Membranes, 2022
In fuel cell applications, the proton exchange membrane (PEM) is the major component where the balance among dimensional stability, proton conductivity, and durability is a long-term trail.
Muhammad Imran Khan, Abdallah Shanableh, Shabnam Shahida, Mushtaq Hussain Lashari, Suryyia Manzoor, Javier Fernandez   +5 more
doaj   +1 more source

Suppression of Methanol and Formate Crossover through Sulfanilic‐Functionalized Holey Graphene as Proton Exchange Membranes

Advanced Science, 2023
Proton exchange membranes with high proton conductivity and low crossover of fuel molecules are required to realize advanced fuel‐cell technology. The selective transportation of protons, which occurs by blocking the transportation of fuel molecules ...
Samuel Jeong, Tatsuhiko Ohto, Tomohiko Nishiuchi, Yuki Nagata, Jun‐ichi Fujita, Yoshikazu Ito   +5 more
doaj   +1 more source

Fabrication and Characterization of Chitosan/N-Phthaloyl Composite Membrane for DMFC Application

Jurnal Riset Kimia, 2021
Modified chitosan membrane is one of the promising membranes for polymer electrolyte membrane. Chitosan/N-phthaloyl chitosan composite membranes were fabricated to obtain high proton conductivity and low methanol permeability.
Christine Dyta Nugraeni, Lukman Atmaja, Nur Hayati, Mochammad Purwanto, Mardi Santoso, Yuli Kusumawati   +5 more
doaj   +1 more source

Role of acetyl group on proton conductivity in chitin system

Journal of Materiomics, 2019
Measurements of proton conductivity in chitin and chitosan have been carried out and proton conductivity is investigated. From the measurement of fuel cell based on the deacetylated chitin (chitosan) electrolyte, it was found that chitosan becomes the ...
Takashi Kawabata, Yasumitsu Matsuo
doaj   +1 more source

Soliton model for proton conductivity in Langmuir films [PDF]

, 2001
A soliton model for proton conductivity in Langmuir films is presented. The model contains three real scalar fields describing the hydrogen involved in the conduction, the hydrophilic head of the Langmuir film, and the water.
B.H.B. Lima, Bazeia, Bazeia, Bazeia, Bazeia, Bazeia, Beford, Bogomol'nyi, Carrol, D. Bazeia, Dupart, F. Moraes, Gibbons, Kondo, Leite, Luckham, Mansfield, Mansfield, Morgan, Oliveira, Oliveira, Pnevmatikos, Prasad, Prats, Skinner, Teissié, V.B.P. Leite, Ventura, Xu, Yoshida   +29 more
core   +2 more sources

Polymer solid acid composite membranes for fuel-cell applications [PDF]

, 2000
A systematic study of the conductivity of polyvinylidene fluoride (PVDF) and CsHSO4 composites, containing 0 to 100% CsHSO4, has been carried out.
Boysen, Dane A., Chisholm, Calum R. I., Haile, Sossina M., Narayanan, Sekharipuram R.   +3 more
core   +1 more source

Phosphoric Acid Doped Polybenzimidazole (PBI)/Zeolitic Imidazolate Framework Composite Membranes with Significantly Enhanced Proton Conductivity under Low Humidity Conditions

Nanomaterials, 2018
The preparation and characterization of composite polybenzimidazole (PBI) membranes containing zeolitic imidazolate framework 8 (ZIF-8) and zeolitic imidazolate framework 67 (ZIF-67) is reported.
Jorge Escorihuela, Óscar Sahuquillo, Abel García-Bernabé, Enrique Giménez, Vicente Compañ   +4 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

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

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