Microstructure and reactivity effects on the performance of Nd2NiO4+δ oxygen electrode on Ce0.9Gd0.1O1.95 electrolyte

被引：27
作者：
Montenegro-Hernandez, A. [1 ,2 ]
Mogni, L. [1 ,2 ]
Caneiro, A. [1 ,2 ,3 ]
机构：
[1] Ctr Atom Bariloche, Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
[2] Consejo Nacl Invest Cient & Tecn CONICET, Buenos Aires, DF, Argentina
[3] CNEA, Buenos Aires, DF, Argentina
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 23期
关键词：
Fuel cells; SOFC cathode; Nickelates; Oxygen reduction reaction; IMPEDANCE SPECTROSCOPY ANALYSIS; IT-SOFC CATHODES; IONIC-CONDUCTIVITY; OXIDE; SM0.5SR0.5COO3; POLARIZATION; PEROVSKITE; REDUCTION; MECHANISM; DIFFUSION;
D O I：
10.1016/j.ijhydene.2012.09.071
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of electrode microstructure on the electrochemical behavior of symmetrical Nd2NiO4+delta/Ce0.9Gd0.1O1.95/Nd2NiO4+delta cells was studied by Electrochemical Impedance Spectroscopy as a function of temperature (500 < T < 750 degrees C) and oxygen partial pressure (10(-4) < pO(2) < 1 atm). Nd2NiO4+delta powders were synthesized by Solid State Reaction, HMTA and Citrates. The samples observed by Scanning Electron Microscopy presented very different microstructures. Three characteristic processes were distinguished at high, medium and low frequency. High frequency contribution was attributed to oxygen ion transfer electrode/electrolyte. Medium frequency contribution was related to oxygen interstitial bulk diffusion and oxygen incorporation in those cases in which the surface of small particles is affected by chemical reactivity with the electrolyte. The low frequency contribution was attributed to dissociative adsorption for electrodes with small particle sizes and high porosity, and a co-limited process of adsorption and gas diffusion for an electrode with dense microstructure and low porosity. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：18290 / 18301
页数：12
相关论文
共 47 条
[1]   Electrode kinetics of porous mixed-conducting oxygen electrodes [J].
Adler, SB ;
Lane, JA ;
Steele, BCH .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (11) :3554-3564
[2]   Factors governing oxygen reduction in solid oxide fuel cell cathodes [J].
Adler, SB .
CHEMICAL REVIEWS, 2004, 104 (10) :4791-4843
[3]   Electrochemical Performance of Nanostructured IT-SOFC Cathodes with Different Morphologies [J].
Baque, L. ;
Djurado, E. ;
Rossignol, C. ;
Marinha, D. ;
Caneiro, A. ;
Serquis, A. .
SOLID OXIDE FUEL CELLS 11 (SOFC-XI), 2009, 25 (02) :2473-2480
[4]   High performance nanostructured IT-SOFC cathodes prepared by novel chemical method [J].
Baque, Laura ;
Caneiro, Alberto ;
Moreno, Mario S. ;
Serquis, Adriana .
ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (12) :1905-1908
[5]   Ba0.5Sr0.5Co0.8Fe0.2O3-δ thin film microelectrodes investigated by impedance spectroscopy [J].
Baumann, F. S. ;
Fleig, J. ;
Habermeier, H. -U. ;
Maier, J. .
SOLID STATE IONICS, 2006, 177 (35-36) :3187-3191
[6]   Oxygen diffusion and transport properties in non-stoichiometric Ln2-xNiO4+δ oxides [J].
Boehm, E ;
Bassat, JM ;
Dordor, P ;
Mauvy, F ;
Grenier, JC ;
Stevens, P .
SOLID STATE IONICS, 2005, 176 (37-38) :2717-2725
[7]   High temperature water electrolysis in solid oxide cells [J].
Brisse, Annabelle ;
Schefold, Josef ;
Zahid, Mohsine .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (20) :5375-5382
[8]   ADAPTATION OF AN ELECTROCHEMICAL SYSTEM FOR MEASUREMENT AND REGULATION OF OXYGEN PARTIAL-PRESSURE TO A SYMMETRICAL THERMOGRAVIMETRIC ANALYSIS SYSTEM DEVELOPED USING A CAHN 1000 ELECTROBALANCE [J].
CANEIRO, A ;
BAVDAZ, P ;
FOULETIER, J ;
ABRIATA, JP .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1982, 53 (07) :1072-1075
[9]   A new anode material for solid oxide electrolyser: The neodymium nickelate Nd2NiO4+δ [J].
Chauveau, F. ;
Mougin, J. ;
Bassat, J. M. ;
Mauvy, F. ;
Grenier, J. C. .
JOURNAL OF POWER SOURCES, 2010, 195 (03) :744-749
[10]   Development and operation of alternative oxygen electrode materials for hydrogen production by high temperature steam electrolysis [J].
Chauveau, Florent ;
Mougin, Julie ;
Mauvy, Fabrice ;
Bassat, Jean-Marc ;
Grenier, Jean-Claude .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (13) :7785-7790
12345