Electrochemical characterization of Pr2CuO4 cathode for IT-SOFC

Лысков, Н. В.; Kaluzhskikh, M. S.; Леонова, Л. С.; Мазо, Г. Н.; Istomin, S.Ya.; Antipov, Evgeny V.

doi:10.1016/j.ijhydene.2012.09.099

Cited by 46 publications

(29 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 341 ] The polarization resistance of a non-optimized Pr 2 CuO 4 electrode was about 1.7 Ω cm 2 at 700 °C, and this electrode showed a better short-term chemical compatibility with GDC electrolyte than La 2 CuO 4 and Nd 2 CuO 4 . [ 345 ] The charge transfer process was believed to be the rate determining step for ORR over the Pr 2 CuO 4 electrode. [ 346 ] An electrolyte (Ce 0.9 Gd 0.1 O 1.95 )-supported SOFC with a Pr 2 CuO 4 cathode delivered a promising power density of exceeding 0.1 W cm −2 at 800 °C and 0.25 W cm −2 at 900 °C.…”

Section: Ruddlesden-popper-type Metal Oxidesmentioning

confidence: 99%

Advances in Cathode Materials for Solid Oxide Fuel Cells: Complex Oxides without Alkaline Earth Metal Elements

Chen

Zhou

Ding

et al. 2015

Advanced Energy Materials

254

155

View full text Add to dashboard Cite

Solid oxide fuel cells (SOFCs) represent one of the cleanest and most efficient options for the direct conversion of a wide variety of fuels to electricity. For example, SOFCs powered by natural gas are ideally suited for distributed power generation. However, the commercialization of SOFC technologies hinges on breakthroughs in materials development to dramatically reduce the cost while enhancing performance and durability. One of the critical obstacles to achieving high‐performance SOFC systems is the cathodes for oxygen reduction reaction (ORR), which perform poorly at low temperatures and degrade over time under operating conditions. Here a comprehensive review of the latest advances in the development of SOFC cathodes is presented: complex oxides without alkaline earth metal elements (because these elements could be vulnerable to phase segregation and contaminant poisoning). Various strategies are discussed for enhancing ORR activity while minimizing the effect of contaminant on electrode durability. Furthermore, some of the critical challenges are briefly highlighted and the prospects for future‐generation SOFC cathodes are discussed. A good understanding of the latest advances and remaining challenges in searching for highly active SOFC cathodes with robust tolerance to contaminants may provide useful guidance for the rational design of new materials and structures for commercially viable SOFC technologies.

show abstract

Section: Ruddlesden-popper-type Metal Oxidesmentioning

confidence: 99%

Advances in Cathode Materials for Solid Oxide Fuel Cells: Complex Oxides without Alkaline Earth Metal Elements

Chen

Zhou

Ding

et al. 2015

Advanced Energy Materials

254

155

View full text Add to dashboard Cite

show abstract

“…Compressed fluorite slab makes the diffusion of oxygen in cuprates with T'-structure much slower in comparison with T-type. For example, oxygen tracer diffusion coefficient in Pr 2 CuO 4 (7.2×10 -13 cm 2 s -1 at 973K) is by nearly five orders of magnitude lower in comparison with La 2 CuO 4 and the mechanism of oxygen reduction on Pr 2 CuO 4 resembles that one of LSM [8]. However, layered cuprates with T'-structure have a number of advantages as cathode materials in IT-SOFC.…”

Section: Tetrahedral Voids In La 2 O 2 Slabs Of T-phase May Participamentioning

confidence: 99%

Influence of structural arrangement of R2O2 slabs of layered cuprates on high-temperature properties important for application in IT-SOFC

et al. 2014

Self Cite

View full text Add to dashboard Cite

Influence of structural arrangement of R2O2 slabs of layered cuprates on high-temperature properties important for application in IT-SOFC. Ionics, http://dx.doi.org/10.1016/j.ssi. 2014.01.039 Access to the published version may require subscription. N.B. When citing this work, cite the original published paper. Solid State Permanent link to this version:http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva- 103293 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

show abstract

“…Despite these promising properties, there has been only limited success in producing low-resistance R-P oxygen electrodes. Of the cuprates [11], only praseodymium cuprate seems to have formidable properties [12] with the best demonstrated polarization at 0.41 Ω• cm 2 on a Gd-doped ceria (CGO) electrolyte at 700°C [13]. Within the set of R-P nickelates, La n + 1 Ni n O 3n + 1 has attracted much attention since it is both stable in contact with common electrolytes and exhibits relatively fast oxygen transport coefficients [10,14].…”

Section: Introductionmentioning

confidence: 99%

Oxygen electrode characteristics of Pr2NiO4+δ-infiltrated porous (La0.9Sr0.1)(Ga0.8Mg0.2)O3–δ

2015

View full text Add to dashboard Cite

Pr 2 NiO 4+ δ was wet infiltrated into porous LSGM scaffolds to form solid oxide cell oxygen electrodes on LSGMelectrolyte symmetrical cells. The minimum calcination temperature required to form this nickelate phase was between 950°C and 1000°C. X-ray diffraction measurements of electrodes tested at 650°C showed little evidence of any phase change, in contrast to 650°C annealed Pr 2 NiO 4+ δ powders that decomposed to Pr 4 Ni 3 O 10 and Pr 6 O 11 . Polarization resistance followed an Arrhenius temperature dependence with an activation barrier of 1.40 eV, and a value as low as 0.11 Ω•cm 2 was observed at 650°C for a Pr 2 NiO 4+ δ loading of 14 vol.%. The present resistance values appear to be the lowest reported to date for a Ruddlesden-Popper phase electrode, and are competitive with perovskite-structure electrodes. The low resistance, combined with the good stability of infiltrated Pr 2 NiO 4+ δ and the advantages of being Co-and Sr-free, make this an exciting new contender for intermediate-temperature solid oxide cell applications.

show abstract

Electrochemical characterization of Pr2CuO4 cathode for IT-SOFC

Cited by 46 publications

References 33 publications

Advances in Cathode Materials for Solid Oxide Fuel Cells: Complex Oxides without Alkaline Earth Metal Elements

Advances in Cathode Materials for Solid Oxide Fuel Cells: Complex Oxides without Alkaline Earth Metal Elements

Influence of structural arrangement of R2O2 slabs of layered cuprates on high-temperature properties important for application in IT-SOFC

Oxygen electrode characteristics of Pr2NiO4+δ-infiltrated porous (La0.9Sr0.1)(Ga0.8Mg0.2)O3–δ

Contact Info

Product

Resources

About