Effective improvement of interface modified strontium titanate based solid oxide fuel cell anodes by infiltration with nano-sized palladium and gadolinium-doped cerium oxide

A.M. Hussain, J.V.T. Hogh, W. Zhang, P. Blennow, N. Bonanos, Bernard A. Boukamp

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)

Abstract

The development of low temperature solid oxide fuel cell (SOFC) anodes by infiltration of Pd/Gd-doped cerium oxide (CGO) electrocatalysts in Nb-doped SrTiO3 (STN) backbones has been investigated. Modification of the electrode/electrolyte interface by thin layer of spin-coated CGO (400–500 nm) contributed to a significant improvement in performance of the STN backbones and infiltrated electrodes. The improvement is due to the result of CGO enrichment at the interface. The impedance analysis showed that addition of Pd further increased the electrode reaction rate with a factor 10 with respect to the CGO electrocatalysts. Very low electrode polarization resistances of 0.055 Ω cm2 (after excluding the gas diffusion limitation contribution) and 1.2 Ω cm2 at 600 °C and 400 °C, respectively, have been obtained in 3% H2/H2O. A gradual decrease in polarization resistance was achieved with increasing loading of Pd-CGO electrocatalyst. The microstructural analysis of the infiltrated Pd-CGO electrocatalyst on STN revealed a homogenous coating of Pd and CGO nanoparticles
Original languageUndefined
Pages (from-to)635-643
Number of pages9
JournalElectrochimica acta
Volume113
DOIs
Publication statusPublished - 2013

Keywords

  • IR-90041
  • METIS-298739

Cite this

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title = "Effective improvement of interface modified strontium titanate based solid oxide fuel cell anodes by infiltration with nano-sized palladium and gadolinium-doped cerium oxide",
abstract = "The development of low temperature solid oxide fuel cell (SOFC) anodes by infiltration of Pd/Gd-doped cerium oxide (CGO) electrocatalysts in Nb-doped SrTiO3 (STN) backbones has been investigated. Modification of the electrode/electrolyte interface by thin layer of spin-coated CGO (400–500 nm) contributed to a significant improvement in performance of the STN backbones and infiltrated electrodes. The improvement is due to the result of CGO enrichment at the interface. The impedance analysis showed that addition of Pd further increased the electrode reaction rate with a factor 10 with respect to the CGO electrocatalysts. Very low electrode polarization resistances of 0.055 Ω cm2 (after excluding the gas diffusion limitation contribution) and 1.2 Ω cm2 at 600 °C and 400 °C, respectively, have been obtained in 3{\%} H2/H2O. A gradual decrease in polarization resistance was achieved with increasing loading of Pd-CGO electrocatalyst. The microstructural analysis of the infiltrated Pd-CGO electrocatalyst on STN revealed a homogenous coating of Pd and CGO nanoparticles",
keywords = "IR-90041, METIS-298739",
author = "A.M. Hussain and J.V.T. Hogh and W. Zhang and P. Blennow and N. Bonanos and Boukamp, {Bernard A.}",
year = "2013",
doi = "10.1016/j.electacta.2013.09.066",
language = "Undefined",
volume = "113",
pages = "635--643",
journal = "Electrochimica acta",
issn = "0013-4686",
publisher = "Elsevier",

}

Effective improvement of interface modified strontium titanate based solid oxide fuel cell anodes by infiltration with nano-sized palladium and gadolinium-doped cerium oxide. / Hussain, A.M.; Hogh, J.V.T.; Zhang, W.; Blennow, P.; Bonanos, N.; Boukamp, Bernard A.

In: Electrochimica acta, Vol. 113, 2013, p. 635-643.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Effective improvement of interface modified strontium titanate based solid oxide fuel cell anodes by infiltration with nano-sized palladium and gadolinium-doped cerium oxide

AU - Hussain, A.M.

AU - Hogh, J.V.T.

AU - Zhang, W.

AU - Blennow, P.

AU - Bonanos, N.

AU - Boukamp, Bernard A.

PY - 2013

Y1 - 2013

N2 - The development of low temperature solid oxide fuel cell (SOFC) anodes by infiltration of Pd/Gd-doped cerium oxide (CGO) electrocatalysts in Nb-doped SrTiO3 (STN) backbones has been investigated. Modification of the electrode/electrolyte interface by thin layer of spin-coated CGO (400–500 nm) contributed to a significant improvement in performance of the STN backbones and infiltrated electrodes. The improvement is due to the result of CGO enrichment at the interface. The impedance analysis showed that addition of Pd further increased the electrode reaction rate with a factor 10 with respect to the CGO electrocatalysts. Very low electrode polarization resistances of 0.055 Ω cm2 (after excluding the gas diffusion limitation contribution) and 1.2 Ω cm2 at 600 °C and 400 °C, respectively, have been obtained in 3% H2/H2O. A gradual decrease in polarization resistance was achieved with increasing loading of Pd-CGO electrocatalyst. The microstructural analysis of the infiltrated Pd-CGO electrocatalyst on STN revealed a homogenous coating of Pd and CGO nanoparticles

AB - The development of low temperature solid oxide fuel cell (SOFC) anodes by infiltration of Pd/Gd-doped cerium oxide (CGO) electrocatalysts in Nb-doped SrTiO3 (STN) backbones has been investigated. Modification of the electrode/electrolyte interface by thin layer of spin-coated CGO (400–500 nm) contributed to a significant improvement in performance of the STN backbones and infiltrated electrodes. The improvement is due to the result of CGO enrichment at the interface. The impedance analysis showed that addition of Pd further increased the electrode reaction rate with a factor 10 with respect to the CGO electrocatalysts. Very low electrode polarization resistances of 0.055 Ω cm2 (after excluding the gas diffusion limitation contribution) and 1.2 Ω cm2 at 600 °C and 400 °C, respectively, have been obtained in 3% H2/H2O. A gradual decrease in polarization resistance was achieved with increasing loading of Pd-CGO electrocatalyst. The microstructural analysis of the infiltrated Pd-CGO electrocatalyst on STN revealed a homogenous coating of Pd and CGO nanoparticles

KW - IR-90041

KW - METIS-298739

U2 - 10.1016/j.electacta.2013.09.066

DO - 10.1016/j.electacta.2013.09.066

M3 - Article

VL - 113

SP - 635

EP - 643

JO - Electrochimica acta

JF - Electrochimica acta

SN - 0013-4686

ER -