Impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2 infiltrated (La,Sr)MnO 3 cathodes of solid oxide fuel cells

Kongfa Chen; Na Ai; Caroline Lievens; Jonathan Love; San Ping Jiang

doi:10.1016/j.elecom.2012.07.025

Impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2 infiltrated (La,Sr)MnO 3 cathodes of solid oxide fuel cells

Kongfa Chen
, Na Ai
, Caroline Lievens
, Jonathan Love
, San Ping Jiang^*

^*Corresponding author for this work

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

32 Citations (Scopus)

Abstract

The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O ₂-infiltrated (La,Sr)MnO ₃ (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm ² at 800 °C, substantially higher than 0.17 Ω cm ² of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode.

Original language	English
Pages (from-to)	129-132
Number of pages	4
Journal	Electrochemistry communications
Volume	23
Issue number	1
Early online date	1 Aug 2012
DOIs	https://doi.org/10.1016/j.elecom.2012.07.025
Publication status	Published - 1 Sept 2012
Externally published	Yes

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Boron
Glass sealant
Infiltrated LSM-GDC cathode
Nano-structure
Solid oxide fuel cells
ITC-ISI-JOURNAL-ARTICLE

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10.1016/j.elecom.2012.07.025

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title = "Impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2 infiltrated (La,Sr)MnO 3 cathodes of solid oxide fuel cells",

abstract = "The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2-infiltrated (La,Sr)MnO 3 (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm 2 at 800 °C, substantially higher than 0.17 Ω cm 2 of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode.",

keywords = "Boron, Glass sealant, Infiltrated LSM-GDC cathode, Nano-structure, Solid oxide fuel cells, ITC-ISI-JOURNAL-ARTICLE",

author = "Kongfa Chen and Na Ai and Caroline Lievens and Jonathan Love and Jiang, \{San Ping\}",

year = "2012",

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doi = "10.1016/j.elecom.2012.07.025",

language = "English",

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T1 - Impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2 infiltrated (La,Sr)MnO 3 cathodes of solid oxide fuel cells

AU - Chen, Kongfa

AU - Ai, Na

AU - Lievens, Caroline

AU - Love, Jonathan

AU - Jiang, San Ping

PY - 2012/9/1

Y1 - 2012/9/1

N2 - The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2-infiltrated (La,Sr)MnO 3 (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm 2 at 800 °C, substantially higher than 0.17 Ω cm 2 of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode.

AB - The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2-infiltrated (La,Sr)MnO 3 (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm 2 at 800 °C, substantially higher than 0.17 Ω cm 2 of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode.

KW - Boron

KW - Glass sealant

KW - Infiltrated LSM-GDC cathode

KW - Nano-structure

KW - Solid oxide fuel cells

KW - ITC-ISI-JOURNAL-ARTICLE

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DO - 10.1016/j.elecom.2012.07.025

M3 - Article

AN - SCOPUS:84865604369

SN - 1388-2481

VL - 23

SP - 129

EP - 132

JO - Electrochemistry communications

JF - Electrochemistry communications

IS - 1

ER -

Impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2 infiltrated (La,Sr)MnO 3 cathodes of solid oxide fuel cells

Abstract

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Keywords

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