scholarly journals Effective Ionic Conductivity of a Novel Intermediate-Temperature Mixed Oxide-Ion and Carbonate-Ion Conductor

2011 ◽  
Vol 158 (2) ◽  
pp. B225 ◽  
Author(s):  
Xue Li ◽  
Guoliang Xiao ◽  
Kevin Huang
Keyword(s):  
Ionic Conductivity ◽  
Mixed Oxide ◽  
Intermediate Temperature ◽  
Ion Conductor ◽  
Carbonate Ion ◽  
Oxide Ion

Synthesis of Mixed Oxide-Ion and Carbonate-Ion Conductors Supported by a Prefabricated Porous Solid Oxide Matrix

2011 ◽  
Author(s):  
Lingling Zhang ◽  
Xue Li ◽  
Siwei Wang ◽  
Kevin Gregory Romito ◽  
Kevin Huang
Keyword(s):  
Mixed Oxide ◽  
Solid Oxide ◽  
Porous Solid ◽  
Molten Carbonate ◽  
Weight Changes ◽  
Two Phase ◽  
Ion Conductor ◽  
Carbonate Ion ◽  
Oxide Matrix ◽  
Oxide Ion

A novel two-step approach is used to fabricate a two-phase mixed oxide-ion and carbonate-ion conductor (MOCC) that has been recently developed for intermediate temperature solid oxide fuel cells (IT-SOFCs) and CO2 separation membranes. In this study, a samarium doped ceria (SDC) is selected as an example to demonstrate the prefabrication of porous matrix by the “sacrificial template” methodology with NiO as the template material. NiO has been reduced into elemental Ni in the composite, and then removed by dissolving into a nitric acid. It was demonstrated by XRD, EDS and weight changes. The microstructure of the SDC matrix characterized with an SEM imaging reveals a uniform distribution of homogeneous micro-pores across the solid-oxide matrix. The strong porous solid-oxide matrix is prefabricated at high temperature, into which a molten carbonate phase is subsequently infiltrated. A Li-Na-carbonate-impregnated MOCC supported by a 41.8% porous SDC matrix shows an effective ionic conductivity of 0.43 S/cm at 650 °C.

Mixed Oxide-Ion and Carbonate-Ion Conductors (MOCCs) as Electrolyte Materials for Solid Oxide Fuel Cells

2019 ◽  
Vol 33 (40) ◽  
pp. 87-103 ◽  
Author(s):  
Xue Li ◽  
Guoliang Xiao ◽  
Seung Min Lee ◽  
Kevin Huang
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Mixed Oxide ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Carbonate Ion ◽  
Oxide Ion ◽  
Ion Conductors

High conductivity mixed oxide-ion and carbonate-ion conductors supported by a prefabricated porous solid-oxide matrix

2011 ◽  
Vol 13 (6) ◽  
pp. 554-557 ◽  
Author(s):  
Lingling Zhang ◽  
Xue Li ◽  
Siwei Wang ◽  
Kevin Gregory Romito ◽  
Kevin Huang
Keyword(s):  
Mixed Oxide ◽  
High Conductivity ◽  
Solid Oxide ◽  
Porous Solid ◽  
Carbonate Ion ◽  
Oxide Matrix ◽  
Oxide Ion ◽  
Ion Conductors

Intermediate Temperature Solid Oxide Fuel Cells Using a New LaGaO3 Based Oxide Ion Conductor: I. Doped as a New Cathode Material

1998 ◽  
Vol 145 (9) ◽  
pp. 3177-3183 ◽  
Author(s):  
Tatsumi Ishihara ◽  
Miho Honda ◽  
Takaaki Shibayama ◽  
Hiroaki Minami ◽  
Hiroyasu Nishiguchi ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Cathode Material ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Ion Conductor ◽  
Oxide Ion Conductor ◽  
Oxide Ion
Sign in / Sign up

Export Citation Format

Share Document