Nano-granulization of gadolinia-doped ceria electrolyte surface by aerosol-assisted chemical vapor deposition for low-temperature solid oxide fuel cells

Jun Woo Kim; Dong Young Jang; Manjin Kim; Hyung Jong Choi; Joon Hyung Shim

doi:10.1016/j.jpowsour.2015.09.098

Nano-granulization of gadolinia-doped ceria electrolyte surface by aerosol-assisted chemical vapor deposition for low-temperature solid oxide fuel cells

Jun Woo Kim, Dong Young Jang, Manjin Kim, Hyung Jong Choi, Joon Hyung Shim

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

24 Citations (Scopus)

Abstract

We have fabricated nano-scale gadolinia-doped ceria (GDC) at the electrode-electrolyte boundary by aerosol-assisted chemical vapor deposition (AACVD) for high-performance solid oxide fuel cells (SOFCs) working at low temperatures below 500 °C. In AACVD, temperature is the key factor affecting the grain size. We have confirmed that by nano-granulizing the electrolyte surface using optimized AACVD, the power output of the SOFC is 50% higher than that of the bare GDC SOFC. From the impedance analysis, significant enhancement of the cathodic oxygen reduction reaction is identified from the AACVD-GDC nano-grain surface treatment.

Original language	English
Pages (from-to)	72-77
Number of pages	6
Journal	Journal of Power Sources
Volume	301
DOIs	https://doi.org/10.1016/j.jpowsour.2015.09.098
Publication status	Published - 2016 Jan 1

Bibliographical note

Funding Information:
This research was supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grant No. NRF-2014K1A3A1A47067412 ). The Brain Korea 21 Plus program ( 21A20131712520 ) is also acknowledged for their support..

Publisher Copyright:
© 2015 Published by Elsevier B.V.

Keywords

Aerosol-assisted chemical vapor deposition
Ceramic thin films
Gadolinia-doped ceria
Grain boundaries
Solid oxide fuel cells
Surface modification

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.jpowsour.2015.09.098

Cite this

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title = "Nano-granulization of gadolinia-doped ceria electrolyte surface by aerosol-assisted chemical vapor deposition for low-temperature solid oxide fuel cells",

abstract = "We have fabricated nano-scale gadolinia-doped ceria (GDC) at the electrode-electrolyte boundary by aerosol-assisted chemical vapor deposition (AACVD) for high-performance solid oxide fuel cells (SOFCs) working at low temperatures below 500 °C. In AACVD, temperature is the key factor affecting the grain size. We have confirmed that by nano-granulizing the electrolyte surface using optimized AACVD, the power output of the SOFC is 50% higher than that of the bare GDC SOFC. From the impedance analysis, significant enhancement of the cathodic oxygen reduction reaction is identified from the AACVD-GDC nano-grain surface treatment.",

keywords = "Aerosol-assisted chemical vapor deposition, Ceramic thin films, Gadolinia-doped ceria, Grain boundaries, Solid oxide fuel cells, Surface modification",

author = "Kim, {Jun Woo} and Jang, {Dong Young} and Manjin Kim and Choi, {Hyung Jong} and Shim, {Joon Hyung}",

note = "Funding Information: This research was supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grant No. NRF-2014K1A3A1A47067412 ). The Brain Korea 21 Plus program ( 21A20131712520 ) is also acknowledged for their support.. Publisher Copyright: {\textcopyright} 2015 Published by Elsevier B.V.",

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doi = "10.1016/j.jpowsour.2015.09.098",

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AU - Kim, Jun Woo

AU - Jang, Dong Young

AU - Kim, Manjin

AU - Choi, Hyung Jong

AU - Shim, Joon Hyung

N1 - Funding Information: This research was supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grant No. NRF-2014K1A3A1A47067412 ). The Brain Korea 21 Plus program ( 21A20131712520 ) is also acknowledged for their support.. Publisher Copyright: © 2015 Published by Elsevier B.V.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - We have fabricated nano-scale gadolinia-doped ceria (GDC) at the electrode-electrolyte boundary by aerosol-assisted chemical vapor deposition (AACVD) for high-performance solid oxide fuel cells (SOFCs) working at low temperatures below 500 °C. In AACVD, temperature is the key factor affecting the grain size. We have confirmed that by nano-granulizing the electrolyte surface using optimized AACVD, the power output of the SOFC is 50% higher than that of the bare GDC SOFC. From the impedance analysis, significant enhancement of the cathodic oxygen reduction reaction is identified from the AACVD-GDC nano-grain surface treatment.

AB - We have fabricated nano-scale gadolinia-doped ceria (GDC) at the electrode-electrolyte boundary by aerosol-assisted chemical vapor deposition (AACVD) for high-performance solid oxide fuel cells (SOFCs) working at low temperatures below 500 °C. In AACVD, temperature is the key factor affecting the grain size. We have confirmed that by nano-granulizing the electrolyte surface using optimized AACVD, the power output of the SOFC is 50% higher than that of the bare GDC SOFC. From the impedance analysis, significant enhancement of the cathodic oxygen reduction reaction is identified from the AACVD-GDC nano-grain surface treatment.

KW - Aerosol-assisted chemical vapor deposition

KW - Ceramic thin films

KW - Gadolinia-doped ceria

KW - Grain boundaries

KW - Solid oxide fuel cells

KW - Surface modification

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DO - 10.1016/j.jpowsour.2015.09.098

M3 - Article

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SN - 0378-7753

VL - 301

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JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Nano-granulization of gadolinia-doped ceria electrolyte surface by aerosol-assisted chemical vapor deposition for low-temperature solid oxide fuel cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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