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

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

Surface Oxygen Exchange Kinetics of Solid Oxide Ion Conductors

1993 ◽  
pp. 167-180 ◽  
Author(s):  
B. A. Boukamp ◽  
I. C. Vinke ◽  
K. J. Vries ◽  
A. J. Burggraaf
Keyword(s):  
Oxygen Exchange ◽  
Solid Oxide ◽  
Surface Oxygen ◽  
Exchange Kinetics ◽  
Kinetics Of ◽  
Oxide Ion Conductors ◽  
Oxide Ion ◽  
Ion Conductors

Zirconia based oxide ion conductors for solid oxide fuel cells

Ionics ◽  
1998 ◽  
Vol 4 (5-6) ◽  
pp. 403-408 ◽  
Author(s):  
O. Yamamoto ◽  
Y. Arachi ◽  
H. Sakai ◽  
Y. Takeda ◽  
N. Imanishi ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Oxide Ion Conductors ◽  
Oxide Ion ◽  
Ion Conductors

Oxide Ion Conductors for Solid Oxide Fuel Cells

1991 ◽  
pp. 366-376 ◽  
Author(s):  
Osamu Yamamoto ◽  
Takayuki Kawahara ◽  
Kazushige Kohno ◽  
Yasuo Takeda ◽  
Nobuyuki Imanshi
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Oxide Ion Conductors ◽  
Oxide Ion ◽  
Ion Conductors

Synthesis of a Homogeneously Porous Solid Oxide Matrix with Tunable Porosity and Pore Size

2012 ◽  
Vol 95 (6) ◽  
pp. 1832-1837 ◽  
Author(s):  
Lingling Zhang ◽  
Zhengping Mao ◽  
James D. Thomason ◽  
Siwei Wang ◽  
Kevin Huang
Keyword(s):  
Pore Size ◽  
Solid Oxide ◽  
Porous Solid ◽  
Oxide Matrix

Lattice Dynamics To Trigger Low Temperature Oxygen Mobility in Solid Oxide Ion Conductors

2008 ◽  
Vol 130 (47) ◽  
pp. 16080-16085 ◽  
Author(s):  
Werner Paulus ◽  
Helmut Schober ◽  
Stefan Eibl ◽  
Mark Johnson ◽  
Tanguy Berthier ◽  
...  
Keyword(s):  
Low Temperature ◽  
Lattice Dynamics ◽  
Solid Oxide ◽  
Oxygen Mobility ◽  
Oxide Ion Conductors ◽  
Oxide Ion ◽  
Ion Conductors
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