Electrical properties of gadolinia-doped ceria for electrodes for magnetohydrodynamic energy systems

被引：8

作者：

Bowen, Michael S. ^{[1
,2
]}

Johnson, Michael ^{[1
,2
]}

McQuade, Ryan ^{[2
]}

Wright, Bryce ^{[1
,2
]}

Kwong, Kyei-Sing ^{[1
]}

Hsieh, Peter Y. ^{[1
]}

Cann, David P. ^{[1
,2
]}

Woodside, C. Rigel ^{[1
]}

机构：

[1] US DOE, Natl Energy Technol Lab, 1450 SW Queen Ave, Albany, OR 97321 USA

[2] Oregon State Univ, Mat Sci, Corvallis, OR 97331 USA

来源：

SN APPLIED SCIENCES | 2020年 / 2卷 / 09期

关键词：

Magnetohydrodynamics; Energy materials; Doped ceria; Energy conversion; Electroceramics; IONIC-CONDUCTIVITY; CEO2-GD2O3; SYSTEM; OXIDES;

D O I：

10.1007/s42452-020-03280-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

High temperature conducting ceramics are of current interest for use as electrode materials for magnetohydrodynamic (MHD) power generation systems for their high conductivity values and their excellent stability under extreme conditions including operating temperatures above 2000 degrees C. Ceria doped with Gd (GDC) has been extensively studied for intermediate temperature applications and shows promise as an efficient electrode material. A summary of the current understanding of the electrical properties of GDC is provided with an emphasis on the higher temperature limits. Experiments to further validate the conclusions drawn in the literature review confirm that with electrical conductivities near 10 S/m at 1100 degrees C make GDC a good candidate electrode material for an MHD power generator.

引用

页数：9

共 47 条

[1] Influence of gadolinium doping on the structure and defects of ceria under fuel cell operating temperature [J].

Acharya, S. A. ;

Gaikwad, V. M. ;

Sathe, V. ;

Kulkarni, S. K. .

APPLIED PHYSICS LETTERS, 2014, 104 (11)

[2] Catalytic Combustion of Diesel Soot on Ce/Zr Series Catalysts Prepared by Sol-Gel Method [J].

Ai, Chaoqian ;

Zhang, Yaoyao ;

Wang, Pan ;

Wang, Wei .

CATALYSTS, 2019, 9 (08)

[3]

[Anonymous], 2018, PHYS CHEM CHEM PHYS, DOI DOI 10.1039/C8CP01029C

[4]

[Anonymous], 2019, SOLID STATE IONICS, DOI DOI 10.1016/J.SSI.2019.115020

[5] Structural characterization of the CeO2/Gd2O3 mixed system by synchrotron X-ray diffraction [J].

Artini, Cristina ;

Costa, Giorgio A. ;

Pani, Marcella ;

Lausi, Andrea ;

Plaisier, Jasper .

JOURNAL OF SOLID STATE CHEMISTRY, 2012, 190 :24-28

[6] Structural and microstructural stability of ceria - gadolinia electrolyte exposed to reducing environments of high temperature fuel cells [J].

Badwal, S. P. S. ;

Fini, D. ;

Ciacchi, F. T. ;

Munnings, C. ;

Kimpton, J. A. ;

Drennan, J. .

JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (36) :10768-10782

[7] AC-IMPEDANCE STUDIES OF RARE-EARTH-OXIDE DOPED CERIA [J].

BALAZS, GB ;

GLASS, RS .

SOLID STATE IONICS, 1995, 76 (1-2) :155-162

[8]

Bates J.L., 1986, Development of Materials for Open-Cycle Magnetohydrodynamics (MHD): Ceramic Electrode , Final Report (

[9]

Bates JL, 1979, JOINT US USSR TEST U

[10] Combustion plasma electrical conductivity model development for oxy-fuel MHD applications [J].

Bedick, Clinton R. ;

Kolczynski, Lauren ;

Woodside, C. Rigel .

COMBUSTION AND FLAME, 2017, 181 :225-238

← 1 2 3 4 5 →