Protonic SOFCs Using Perovskite-Type Conductors

High temperature solid oxide fuel cells (SOFCs) have high efficiency and low emissions and contribute to the saving of the fossil fuel and the decreasing of the CO2 emission bringing about the global warning. As concerned about the development of electrolytes, oxide-ion conductors alternative to yttria-stabilized zirconia (YSZ) such as doped CeO2, Sc-SZ and perovskite-type oxides (LaGaO3) etc. have been reported to apply to the intermediate temperature SOFCs (IT-SOFCs).Some of perovskite-type oxides shows high proton conductivity at high temperature and are expected to the electrolyte materials for IT-SOFCs. In this paper we have investigated review the mixed electrical conductivity and the optical absorption spectrum of OH(D)-vibration of LaScO3.We also evaluated its applicability to the electrolyte material for IT-SOFCs by testing the SOFC performance of Pt/LaScO3/Pt single cell configuration.

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A layered hybrid rare-earth double-perovskite-type molecule-based compound with electrical and optical response properties

Journal of Materials Chemistry C ◽

10.1039/d0tc04386a ◽

2020 ◽

Vol 8 (46) ◽

pp. 16349-16353

Author(s):

Miao-Miao Hua ◽

Le Ye ◽

Qin-Wen Wang ◽

Jia-Jun Ma ◽

Zhi-Xin Gong ◽

...

Keyword(s):

Dielectric Constant ◽

Rare Earth ◽

High Temperature ◽

High Efficiency ◽

Double Perovskite ◽

Optical Response ◽

Response Properties ◽

Type Molecule ◽

Perovskite Type

An excellent high-temperature switchable dielectric constant and high-efficiency photoluminescence have been realized in (3HQ)4[RbEu(NO3)8] (3HQ = 3-quinuclidinone cation).

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Preparation and Transport Properties of New Oxide Ion Conductors KNb1-xMgxO3-δ by High Temperature and Pressure.

ChemInform ◽

10.1002/chin.200320014 ◽

2003 ◽

Vol 34 (20) ◽

Author(s):

Liping Li ◽

Guangshe Li ◽

Jun Xiang ◽

R. L. Jr. Smith ◽

H. Inomata

Keyword(s):

High Temperature ◽

Transport Properties ◽

High Temperature And Pressure ◽

Temperature And Pressure ◽

Oxide Ion Conductors ◽

Oxide Ion ◽

Ion Conductors

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Nafion – Azole Composite Membranes for High Temperature PEMFC

Materials Science Forum ◽

10.4028/www.scientific.net/msf.783-786.1692 ◽

2014 ◽

Vol 783-786 ◽

pp. 1692-1697

Author(s):

Je Deok Kim ◽

Mun Suk Jun

Keyword(s):

Mechanical Properties ◽

Thermal Stability ◽

High Temperature ◽

Proton Conductivity ◽

Composite Membrane ◽

Room Temperature ◽

Composite Membranes ◽

Thermal And Mechanical Properties ◽

High Proton Conductivity ◽

High Proton

Nafion-azole (benzimidazole, 1,2,4-triazole, 1,2,3-triazole) composite membranes were prepared by room temperature and autoclave solution processing for high temperature (above 100 °C) PEMFC. Among the various Nafion – azole composite membranes, Nafion – 1,2,3-triazole membrane showed excellent flexibility, thermal stability, and homogeneous structure. Nafion – 1,2,4-triazole composite membrane had high thermal and mechanical properties, and also showed high proton conductivity of 0.02 S/cm at the temperature of 160 °C under dry (N2) condition.

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Ceria-carbonate Electrolyte Ceramic Membrane for Intermediate and Low Temperature Solid Oxide Fuel Cells: A Review

Journal of Applied Membrane Science & Technology ◽

10.11113/amst.v24n1.167 ◽

2020 ◽

Vol 24 (1) ◽

Author(s):

S. Marthosa ◽

M. Suklueng ◽

S. Niyomwas ◽

E. Anancharoenwong ◽

Thitirat Ninwijit ◽

...

Keyword(s):

Low Temperature ◽

Solid Oxide Fuel Cells ◽

High Efficiency ◽

Ceramic Membrane ◽

Composite Ceramic ◽

Solid Oxide ◽

Oxide Fuel ◽

Crucial Component ◽

One Step ◽

Oxide Ion

A solid oxide fuel cell (SOFC) is a potential energy conversion technology with high efficiency and high fuel impurity tolerance. Its electrolyte layer is a crucial component and a novel ceria-carbonate electrolyte ceramic membrane has been developed for the intermediate and low temperature SOFCs (IT-LT SOFCs). The ceria-carbonate electrolyte can be produced by either a two-steps process which produces microscale particles or a one-step process which produces nanoscale materials. The ceria-carbonate composite ceramic membrane facilitates both of the oxide ion and proton conductions thus this material has a potential to raise the multi-ions transportation and improve performance of IT-LT SOFCs.

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