Ni-YSZ-supported tubular solid oxide fuel cells with GDC interlayer between YSZ electrolyte and LSCF cathode

Seung Young Park; Jee Hyun Ahn; Chang Woo Jeong; Chan Woong Na; Rak Hyun Song; Jong Heun Lee

doi:10.1016/j.ijhydene.2014.06.103

Ni-YSZ-supported tubular solid oxide fuel cells with GDC interlayer between YSZ electrolyte and LSCF cathode

Seung Young Park, Jee Hyun Ahn, Chang Woo Jeong, Chan Woong Na, Rak Hyun Song, Jong Heun Lee

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

Highly sinterable gadolinia doped ceria (GDC) powders are prepared by carbonate coprecipitation and applied to the GDC interlayer in Ni-YSZ (yttria stabilized zirconia)-supported tubular solid oxide fuel cell in order to prevent the reaction between YSZ electrolyte and LSCF (La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ) cathode materials. The formation of highly resistive phase at the YSZ/LSCF interface was effectively blocked by the low-temperature densification of GDC interlayer using carbonate-derived active GDC powders and the suppression of Sr diffusion toward YSZ electrolyte via GDC interlayer by tuning the heat-treatment temperature for cathode fabrication. The power density of the cell with the configuration of Ni-YSZ/YSZ/GDC/LSCF-GDC/LSCF was as high as 906 mW cm^-2, which was 2.0 times higher than that (455 mW cm^-2) of the cell with the configuration of Ni-YSZ/YSZ/LSM(La_0.8Sr_0.2MnO_3-δ)-YSZ/LSM at 750°C.

Original language	English
Pages (from-to)	12894-12903
Number of pages	10
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	24
DOIs	https://doi.org/10.1016/j.ijhydene.2014.06.103
Publication status	Published - 2014 Aug 13

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

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Ni-YSZ-supported tubular solid oxide fuel cells with GDC interlayer between YSZ electrolyte and LSCF cathode. / Park, Seung Young; Ahn, Jee Hyun; Jeong, Chang Woo; Na, Chan Woong; Song, Rak Hyun; Lee, Jong Heun.

In: International Journal of Hydrogen Energy, Vol. 39, No. 24, 13.08.2014, p. 12894-12903.

Research output: Contribution to journal › Article › peer-review

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title = "Ni-YSZ-supported tubular solid oxide fuel cells with GDC interlayer between YSZ electrolyte and LSCF cathode",

abstract = "Highly sinterable gadolinia doped ceria (GDC) powders are prepared by carbonate coprecipitation and applied to the GDC interlayer in Ni-YSZ (yttria stabilized zirconia)-supported tubular solid oxide fuel cell in order to prevent the reaction between YSZ electrolyte and LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ) cathode materials. The formation of highly resistive phase at the YSZ/LSCF interface was effectively blocked by the low-temperature densification of GDC interlayer using carbonate-derived active GDC powders and the suppression of Sr diffusion toward YSZ electrolyte via GDC interlayer by tuning the heat-treatment temperature for cathode fabrication. The power density of the cell with the configuration of Ni-YSZ/YSZ/GDC/LSCF-GDC/LSCF was as high as 906 mW cm-2, which was 2.0 times higher than that (455 mW cm-2) of the cell with the configuration of Ni-YSZ/YSZ/LSM(La0.8Sr0.2MnO3-δ)-YSZ/LSM at 750°C.",

keywords = "Carbonate coprecipitation, Gadolinia doped ceria, GDC interlayer, Tubular solid oxide fuel cell, Yttria stabilized zirconia",

author = "Park, {Seung Young} and Ahn, {Jee Hyun} and Jeong, {Chang Woo} and Na, {Chan Woong} and Song, {Rak Hyun} and Lee, {Jong Heun}",

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AU - Park, Seung Young

AU - Ahn, Jee Hyun

AU - Jeong, Chang Woo

AU - Na, Chan Woong

AU - Song, Rak Hyun

AU - Lee, Jong Heun

PY - 2014/8/13

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AB - Highly sinterable gadolinia doped ceria (GDC) powders are prepared by carbonate coprecipitation and applied to the GDC interlayer in Ni-YSZ (yttria stabilized zirconia)-supported tubular solid oxide fuel cell in order to prevent the reaction between YSZ electrolyte and LSCF (La0.6Sr0.4Co0.2Fe0.8O3-δ) cathode materials. The formation of highly resistive phase at the YSZ/LSCF interface was effectively blocked by the low-temperature densification of GDC interlayer using carbonate-derived active GDC powders and the suppression of Sr diffusion toward YSZ electrolyte via GDC interlayer by tuning the heat-treatment temperature for cathode fabrication. The power density of the cell with the configuration of Ni-YSZ/YSZ/GDC/LSCF-GDC/LSCF was as high as 906 mW cm-2, which was 2.0 times higher than that (455 mW cm-2) of the cell with the configuration of Ni-YSZ/YSZ/LSM(La0.8Sr0.2MnO3-δ)-YSZ/LSM at 750°C.

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KW - Tubular solid oxide fuel cell

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