Fabrication of Lanthanum Strontium Cobalt Ferrite-Gadolinium-Doped Ceria Composite Cathodes Using a Low-Price Inkjet Printer

Gwon Deok Han; Hyung Jong Choi; Kiho Bae; Hyeon Rak Choi; Dong Young Jang; Joon Hyung Shim

doi:10.1021/acsami.7b11462

Fabrication of Lanthanum Strontium Cobalt Ferrite-Gadolinium-Doped Ceria Composite Cathodes Using a Low-Price Inkjet Printer

Gwon Deok Han, Hyung Jong Choi, Kiho Bae, Hyeon Rak Choi, Dong Young Jang, Joon Hyung Shim

School of Mechanical Engineering

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

28 Citations (Scopus)

Abstract

In this work, we have successfully fabricated lanthanum strontium cobalt ferrite (LSCF)-gadolinium-doped ceria (GDC) composite cathodes by inkjet printing and demonstrated their functioning in solid oxide fuel cells (SOFCs). The cathodes are printed using a low-cost HP inkjet printer, and the LSCF and GDC source inks are synthesized with fluidic properties optimum for inkjet printing. The composition and microstructure of the LSCF and GDC layers are successfully controlled by controlling the color level in the printed images and the number of printing cycles, respectively. Anode-support type SOFCs with optimized LSCF-GDC composite cathodes synthesized by our inkjet printing method have achieved a power output of over 570 mW cm^-2 at 650 °C, which is comparable to the performance of a commercial SOFC stack. Electrochemical impedance analysis is carried out to establish a relationship between the cell performance and the compositional and structural characteristics of the printed LSCF-GDC composite cathodes.

Original language	English
Pages (from-to)	39347-39356
Number of pages	10
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	45
DOIs	https://doi.org/10.1021/acsami.7b11462
Publication status	Published - 2017 Nov 15

Bibliographical note

Funding Information:
This work was supported by the Korea Ministry of Environment (MOE) as a “Public Technology Program based on Environmental Policy” [grant number E416-00070-0604-0] and the Global Ph.D. Fellowship Program through the National Research Foundation of Korea, funded by the Ministry of Education (grant number NRF-2014H1A2A1020561). This work was also supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIP) (No. NRF-2016R1D1A1B03932377). The Brain Korea 21 Plus program (21A20131712520) is also acknowledged for its support. Permitting use of the Korea University logo in a scholarly paper is granted to university affiliated members including faculties and students.

Publisher Copyright:
© 2017 American Chemical Society.

Keywords

composite cathode
gadolinium-doped ceria
inkjet printing
lanthanum strontium cobalt ferrite
solid oxide fuel cells

ASJC Scopus subject areas

General Materials Science

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10.1021/acsami.7b11462

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title = "Fabrication of Lanthanum Strontium Cobalt Ferrite-Gadolinium-Doped Ceria Composite Cathodes Using a Low-Price Inkjet Printer",

abstract = "In this work, we have successfully fabricated lanthanum strontium cobalt ferrite (LSCF)-gadolinium-doped ceria (GDC) composite cathodes by inkjet printing and demonstrated their functioning in solid oxide fuel cells (SOFCs). The cathodes are printed using a low-cost HP inkjet printer, and the LSCF and GDC source inks are synthesized with fluidic properties optimum for inkjet printing. The composition and microstructure of the LSCF and GDC layers are successfully controlled by controlling the color level in the printed images and the number of printing cycles, respectively. Anode-support type SOFCs with optimized LSCF-GDC composite cathodes synthesized by our inkjet printing method have achieved a power output of over 570 mW cm-2 at 650 °C, which is comparable to the performance of a commercial SOFC stack. Electrochemical impedance analysis is carried out to establish a relationship between the cell performance and the compositional and structural characteristics of the printed LSCF-GDC composite cathodes.",

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author = "Han, {Gwon Deok} and Choi, {Hyung Jong} and Kiho Bae and Choi, {Hyeon Rak} and Jang, {Dong Young} and Shim, {Joon Hyung}",

note = "Funding Information: This work was supported by the Korea Ministry of Environment (MOE) as a “Public Technology Program based on Environmental Policy” [grant number E416-00070-0604-0] and the Global Ph.D. Fellowship Program through the National Research Foundation of Korea, funded by the Ministry of Education (grant number NRF-2014H1A2A1020561). This work was also supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIP) (No. NRF-2016R1D1A1B03932377). The Brain Korea 21 Plus program (21A20131712520) is also acknowledged for its support. Permitting use of the Korea University logo in a scholarly paper is granted to university affiliated members including faculties and students. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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N2 - In this work, we have successfully fabricated lanthanum strontium cobalt ferrite (LSCF)-gadolinium-doped ceria (GDC) composite cathodes by inkjet printing and demonstrated their functioning in solid oxide fuel cells (SOFCs). The cathodes are printed using a low-cost HP inkjet printer, and the LSCF and GDC source inks are synthesized with fluidic properties optimum for inkjet printing. The composition and microstructure of the LSCF and GDC layers are successfully controlled by controlling the color level in the printed images and the number of printing cycles, respectively. Anode-support type SOFCs with optimized LSCF-GDC composite cathodes synthesized by our inkjet printing method have achieved a power output of over 570 mW cm-2 at 650 °C, which is comparable to the performance of a commercial SOFC stack. Electrochemical impedance analysis is carried out to establish a relationship between the cell performance and the compositional and structural characteristics of the printed LSCF-GDC composite cathodes.

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Fabrication of Lanthanum Strontium Cobalt Ferrite-Gadolinium-Doped Ceria Composite Cathodes Using a Low-Price Inkjet Printer

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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