Proton Transfer in Low Temperature Proton Conductors

1995 ◽  
Vol 5 (2) ◽  
pp. 46-49 ◽  
Author(s):  
Andrei B. Yaroslavtsev ◽  
Dmitrii L. Gorbatchev
Keyword(s):  
Low Temperature ◽  
Proton Transfer ◽  
Proton Conductors

Proton transfer in polyamine–P2Mo5 model adducts: exploring the effect of polyamine cations on their proton conductivity

2020 ◽  
Vol 49 (47) ◽  
pp. 17301-17309
Author(s):  
Shan Zhang ◽  
Ying Lu ◽  
Xiuwei Sun ◽  
Zhuo Li ◽  
Tianyi Dang ◽  
...  
Keyword(s):  
Proton Transfer ◽  
Proton Conductivity ◽  
Proton Conductors

Polyamine–P2Mo5 model proton conductors composed of different polyamine cations and [HxP2Mo5O23](6−x)− (x = 0, 1, 2) anions were established.

scholarly journals Proton transfer in hydrogen-bonded degenerate systems of water and ammonia in metal–organic frameworks

2019 ◽  
Vol 10 (1) ◽  
pp. 16-33 ◽  
Author(s):  
Dae-Woon Lim ◽  
Masaaki Sadakiyo ◽  
Hiroshi Kitagawa
Keyword(s):  
Proton Transfer ◽  
Metal Organic Frameworks ◽  
Proton Conductors ◽  
Degenerate System ◽  
New Class ◽  
System P ◽  
Metal Organic ◽  
Crystalline Metal ◽  
Hydrogen Bonded

Porous crystalline metal–organic frameworks (MOFs) are emerging as a new class of proton conductors through the hydrogen-bonded degenerate system.

Low-Temperature Operating Micro Solid Oxide Fuel Cells with Perovskite-type Proton Conductors

2011 ◽  
Vol 1330 ◽  
Author(s):  
Hiroo Yugami ◽  
Kensuke Kubota ◽  
Yu Inagaki ◽  
Fumitada Iguchi ◽  
Shuji Tanaka ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Power Density ◽  
Proton Conductors ◽  
Solid Oxide ◽  
Maximum Power ◽  
Barium Zirconate ◽  
Oxide Fuel ◽  
Maximum Power Density

ABSTRACTMicro-solid oxide fuel cells (Micro-SOFCs) with yttrium-doped barium zirconate (BZY) and strontium and cobalt-doped lanthanum scandate (LSScCo) electrolytes were fabricated for low-temperature operation at 300 °C. The micro-SOFC with a BZY electrolyte could operate at 300 °C with an open circuit voltage (OCV) of 1.08 V and a maximum power density of 2.8 mW/cm2. The micro-SOFC with a LSScCo electrolyte could operate at 370 °C; its OCV was about 0.8 V, and its maximum power density was 0.6 mW/cm2. Electrochemical impedance spectroscopy revealed that the electrolyte resistance in both the micro-SOFCs was lower than 0.1 Ωcm2, and almost all of the resistance was due to anode and cathode reactions. Although the obtained maximum power density was not sufficient for practical applications, improvement of electrodes will make these micro-SOFCs promising candidates for power sources of mobile electronic devices.

Zircontes/Sulfates Composites: Perfect Combination of High- and Low-Temperature Protonic Conductors

2010 ◽  
Vol 434-435 ◽  
pp. 719-722
Author(s):  
Zhen Zhen Peng ◽  
Rui Song Guo ◽  
Zi Guang Yin ◽  
Juan Li
Keyword(s):  
Electrical Conductivity ◽  
Fuel Cell ◽  
Low Temperature ◽  
Electromotive Force ◽  
Ionic Transport ◽  
Proton Conductors ◽  
Transport Numbers ◽  
Barium Zirconate ◽  
Emf Measurements ◽  
Protonic Conductors

Two typical classes of proton conductors, zirconates and solid acids (such as CsHSO4) or related sulfates, are intensively investigated recently. Based on the different proton-conducting mechanisms of zirconates and sulfates, we designed and fabricated Y2O3-doped barium zirconate/sulfates composites, aiming to make full use of the benefits, and eliminate the drawbacks of the two individual materials. The electrical conduction of the composite was studied by electrical and electrochemical methods. Microstructure of the composites was examined by SEM. Electromotive force (EMF) measurements were conducted under fuel cell conditions. The results indicated that small amount of sulfates was introduced at the grain boundaries of BaZr0.9Y0.1O2.95. The electrical conductivity of the composites was greatly improved and the total ionic transport numbers of the composites are more than 0.9 at 750 °C.

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