Open-cell voltage and electrical conductivity of a protonic ceramic electrolyte under two chemical potential gradients

2018 ◽  
Vol 20 (22) ◽  
pp. 14997-15001 ◽  
Author(s):  
Ho-Il Ji ◽  
Hyoungchul Kim ◽  
Hae-Weon Lee ◽  
Byung-Kook Kim ◽  
Ji-Won Son ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Open Circuit Voltage ◽  
Chemical Potential ◽  
Cell Voltage ◽  
Open Circuit ◽  
Ceramic Electrolyte ◽  
Ceramic Fuel ◽  
Potential Gradients ◽  
Ceramic Fuel Cells ◽  
Chemical Potential Gradients

Theoretical open-circuit voltage and electrical conductivity of BZY20 at 500 °C under O2 and H2O chemical potential gradients in a range of interest for protonic ceramic fuel cells are investigated.

Fabrication of protonic ceramic fuel cells via infiltration with Ni nanoparticles: A new strategy to suppress NiO diffusion & increase open circuit voltage

2020 ◽  
Vol 345 ◽  
pp. 115189 ◽  
Author(s):  
Donglin Han ◽  
Akiko Kuramitsu ◽  
Takayuki Onishi ◽  
Yohei Noda ◽  
Masatoshi Majima ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Ni Nanoparticles ◽  
New Strategy ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells

A Key for Achieving Higher Open-Circuit Voltage in Protonic Ceramic Fuel Cells: Lowering Interfacial Electrode Polarization

2018 ◽  
Vol 2 (1) ◽  
pp. 587-597 ◽  
Author(s):  
Hiroyuki Shimada ◽  
Toshiaki Yamaguchi ◽  
Hirofumi Sumi ◽  
Yuki Yamaguchi ◽  
Katsuhiro Nomura ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Electrode Polarization ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells

Genesis of coronae and implications of an early Neoproterozoic thermal event: a case study from SE Chotanagpur Granite Gneissic Complex, India

2020 ◽  
pp. 1-20
Author(s):  
Vedanta Adak ◽  
Upama Dutta
Keyword(s):  
Chemical Potential ◽  
Corona Formation ◽  
Geological Evolution ◽  
Geological Information ◽  
Potential Gradients ◽  
A Minor ◽  
Chemical Potential Gradients ◽  
Early Neoproterozoic ◽  
Extract Information

Abstract Partial equilibrium textures such as corona provide information on changing pressure–temperature (P-T) conditions experienced by a rock during its geological evolution. Coronae layers may form in single or multiple stages; understanding the genesis of each layer is necessary to correctly extract information regarding the physicochemical conditions experienced by the rock. Mafic rocks from SE Chotanagpur Granite Gneissic Complex, India, show the presence of multi-layered coronae at olivine–plagioclase contact with the mineral sequence: olivine | orthopyroxene | amphibole + spinel | plagioclase. Textural studies indicate that the coronae formed during metamorphism in a single stage due to a reaction between olivine and plagioclase. Reaction modelling shows that the corona formation occurred in an open system and experienced a minor volume loss. Pseudosection modelling and thermobarometry suggest that the P-T conditions related to corona formation are 860 ± 50°C and 7 ± 0.5 kbar. A μMgO-μCaO diagram shows that the layers in coronae formed in response to chemical potential gradients between the reactant minerals. A combination of field observations and the P-T conditions of coronae formation suggest a fluid-driven metamorphism. Correlation with extant geological information indicates that the corona-forming event is possibly related to the accretion of India and Antarctica during the assembly of Rodinia.

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