Synthesis of novel proton-conducting highly sulfonated polybenzimidazoles for PEMFC and the effect of the type of bisphenyl bridge on polymer and membrane properties

2011 ◽  
Vol 49 (10) ◽  
pp. 2107-2117 ◽  
Author(s):  
Feifei Ng ◽  
Jennifer Péron ◽  
Deborah J. Jones ◽  
Jacques Rozière
Keyword(s):  
Membrane Properties ◽  
Proton Conducting

Polybenzimidazole as proton conducting filler in polydimethylsiloxane: Enhanced oxidative stability and membrane properties

2019 ◽  
Vol 136 (43) ◽  
pp. 48151 ◽  
Author(s):  
B. Satheesh Kumar ◽  
Balakondareddy Sana ◽  
G. Unnikrishnan ◽  
Tushar Jana ◽  
K. S. Santhosh Kumar
Keyword(s):  
Oxidative Stability ◽  
Membrane Properties ◽  
Proton Conducting ◽  
Conducting Filler

Physicochemical study of basement membrane properties iii. diffusion of proline, glucose and insulin in krebs solution

1988 ◽  
Vol 85 ◽  
pp. 391-397
Author(s):  
Bo Tao Fan ◽  
Françoise Simonnet ◽  
Jean Schaeverbeke ◽  
Gérard Lapluye
Keyword(s):  
Basement Membrane ◽  
Membrane Properties ◽  
Physicochemical Study ◽  
Krebs Solution

Interaction of H2O, O2 and H2 with Proton Conducting Oxides Based on Lanthanum Scandates

2019 ◽  
pp. 88-100
Author(s):  
A. S. Farlenkov ◽  
N. A. Zhuravlev ◽  
Т. A. Denisova ◽  
М. V. Ananyev
Keyword(s):  
Water Vapor ◽  
Partial Pressure ◽  
Gas Phase ◽  
Molecular Hydrogen ◽  
Proton Magnetic Resonance ◽  
Partial Pressure Of Oxygen ◽  
Proton Conducting ◽  
Conducting Oxides ◽  
Temperature Range ◽  
Apparent Level

The research uses the method of high-temperature thermogravimetric analysis to study the processes of interaction of the gas phase in the temperature range 300–950 °C in the partial pressure ranges of oxygen 8.1–50.7 kPa, water 6.1–24.3 kPa and hydrogen 4.1 kPa with La1–xSrxScO3–α oxides (x = 0; 0.04; 0.09). In the case of an increase in the partial pressure of water vapor at a constant partial pressure of oxygen (or hydrogen) in the gas phase, the apparent level of saturation of protons is shown to increase. An increase in the apparent level of saturation of protons of the sample also occurs with an increase in the partial pressure of oxygen at a constant partial pressure of water vapor in the gas phase. The paper discusses the causes of the observed processes. The research uses the hydrogen isotope exchange method with the equilibration of the isotope composition of the gas phase to study the incorporation of hydrogen into the structure of proton-conducting oxides based on strontium-doped lanthanum scandates. The concentrations of protons and deuterons were determined in the temperature range of 300–800 °C and a hydrogen pressure of 0.2 kPa for La0.91Sr0.09ScO3–α oxide. The paper discusses the role of oxygen vacancies in the process of incorporation of protons and deuterons from the atmosphere of molecular hydrogen into the structure of the proton conducting oxides La1–xSrxScO3–α (x = 0; 0.04; 0.09). The proton magnetic resonance method was used to study the local structure in the temperature range 23–110 °C at a rotation speed of 10 kHz (MAS) for La0.96Sr0.04ScO3–α oxide after thermogravimetric measurements in an atmosphere containing water vapor, and after exposures in molecular hydrogen atmosphere. The existence of proton defects incorporated into the volume of the investigated proton oxide from both the atmosphere containing water and the atmosphere containing molecular hydrogen is unambiguously shown. The paper considers the effect of the contributions of the volume and surface of La0.96Sr0.04ScO3–α oxide on the shape of the proton magnetic resonance spectra.

Flexible Dual-Gate MoS₂ Neuromorphic Transistors on Freestanding Proton-Conducting Chitosan Membranes

2021 ◽  
pp. 1-5
Author(s):  
Chunsheng Chen ◽  
Yongli He ◽  
Li Zhu ◽  
Ying Zhu ◽  
Yi Shi ◽  
...  
Keyword(s):  
Proton Conducting ◽  
Dual Gate ◽  
Chitosan Membranes
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