Demonstrating the potential of yttrium-doped barium zirconate electrolyte for high-performance fuel cells

Kiho Bae, Dong Young Jang, Hyung Jong Choi, Donghwan Kim, Jongsup Hong, Byung Kook Kim, Jong Ho Lee, Ji Won Son, Joon Hyung Shim

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

In reducing the high operating temperatures (≥800 °C) of solid-oxide fuel cells, use of protonic ceramics as an alternative electrolyte material is attractive due to their high conductivity and low activation energy in a low-temperature regime (≤600 °C). Among many protonic ceramics, yttrium-doped barium zirconate has attracted attention due to its excellent chemical stability, which is the main issue in protonic-ceramic fuel cells. However, poor sinterability of yttrium-doped barium zirconate discourages its fabrication as a thin-film electrolyte and integration on porous anode supports, both of which are essential to achieve high performance. Here we fabricate a protonic-ceramic fuel cell using a thin-film-deposited yttrium-doped barium zirconate electrolyte with no impeding grain boundaries owing to the columnar structure tightly integrated with nanogranular cathode and nanoporous anode supports, which to the best of our knowledge exhibits a record high-power output of up to an order of magnitude higher than those of other reported barium zirconate-based fuel cells.

Original languageEnglish
Article number14553
JournalNature Communications
Volume8
DOIs
Publication statusPublished - 2017 Feb 23

Fingerprint

Barium zirconate
Yttrium
Ceramics
Barium
yttrium
Electrolytes
fuel cells
barium
Protonic ceramic fuel cells (PCFC)
Fuel cells
electrolytes
ceramics
Electrodes
Anodes
anodes
Thin films
Temperature
Chemical stability
solid oxide fuel cells
thin films

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Demonstrating the potential of yttrium-doped barium zirconate electrolyte for high-performance fuel cells. / Bae, Kiho; Jang, Dong Young; Choi, Hyung Jong; Kim, Donghwan; Hong, Jongsup; Kim, Byung Kook; Lee, Jong Ho; Son, Ji Won; Shim, Joon Hyung.

In: Nature Communications, Vol. 8, 14553, 23.02.2017.

Research output: Contribution to journalArticle

Bae, Kiho ; Jang, Dong Young ; Choi, Hyung Jong ; Kim, Donghwan ; Hong, Jongsup ; Kim, Byung Kook ; Lee, Jong Ho ; Son, Ji Won ; Shim, Joon Hyung. / Demonstrating the potential of yttrium-doped barium zirconate electrolyte for high-performance fuel cells. In: Nature Communications. 2017 ; Vol. 8.
@article{6a6cedcca2f542b3bad3731070438f34,
title = "Demonstrating the potential of yttrium-doped barium zirconate electrolyte for high-performance fuel cells",
abstract = "In reducing the high operating temperatures (≥800 °C) of solid-oxide fuel cells, use of protonic ceramics as an alternative electrolyte material is attractive due to their high conductivity and low activation energy in a low-temperature regime (≤600 °C). Among many protonic ceramics, yttrium-doped barium zirconate has attracted attention due to its excellent chemical stability, which is the main issue in protonic-ceramic fuel cells. However, poor sinterability of yttrium-doped barium zirconate discourages its fabrication as a thin-film electrolyte and integration on porous anode supports, both of which are essential to achieve high performance. Here we fabricate a protonic-ceramic fuel cell using a thin-film-deposited yttrium-doped barium zirconate electrolyte with no impeding grain boundaries owing to the columnar structure tightly integrated with nanogranular cathode and nanoporous anode supports, which to the best of our knowledge exhibits a record high-power output of up to an order of magnitude higher than those of other reported barium zirconate-based fuel cells.",
author = "Kiho Bae and Jang, {Dong Young} and Choi, {Hyung Jong} and Donghwan Kim and Jongsup Hong and Kim, {Byung Kook} and Lee, {Jong Ho} and Son, {Ji Won} and Shim, {Joon Hyung}",
year = "2017",
month = "2",
day = "23",
doi = "10.1038/ncomms14553",
language = "English",
volume = "8",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Demonstrating the potential of yttrium-doped barium zirconate electrolyte for high-performance fuel cells

AU - Bae, Kiho

AU - Jang, Dong Young

AU - Choi, Hyung Jong

AU - Kim, Donghwan

AU - Hong, Jongsup

AU - Kim, Byung Kook

AU - Lee, Jong Ho

AU - Son, Ji Won

AU - Shim, Joon Hyung

PY - 2017/2/23

Y1 - 2017/2/23

N2 - In reducing the high operating temperatures (≥800 °C) of solid-oxide fuel cells, use of protonic ceramics as an alternative electrolyte material is attractive due to their high conductivity and low activation energy in a low-temperature regime (≤600 °C). Among many protonic ceramics, yttrium-doped barium zirconate has attracted attention due to its excellent chemical stability, which is the main issue in protonic-ceramic fuel cells. However, poor sinterability of yttrium-doped barium zirconate discourages its fabrication as a thin-film electrolyte and integration on porous anode supports, both of which are essential to achieve high performance. Here we fabricate a protonic-ceramic fuel cell using a thin-film-deposited yttrium-doped barium zirconate electrolyte with no impeding grain boundaries owing to the columnar structure tightly integrated with nanogranular cathode and nanoporous anode supports, which to the best of our knowledge exhibits a record high-power output of up to an order of magnitude higher than those of other reported barium zirconate-based fuel cells.

AB - In reducing the high operating temperatures (≥800 °C) of solid-oxide fuel cells, use of protonic ceramics as an alternative electrolyte material is attractive due to their high conductivity and low activation energy in a low-temperature regime (≤600 °C). Among many protonic ceramics, yttrium-doped barium zirconate has attracted attention due to its excellent chemical stability, which is the main issue in protonic-ceramic fuel cells. However, poor sinterability of yttrium-doped barium zirconate discourages its fabrication as a thin-film electrolyte and integration on porous anode supports, both of which are essential to achieve high performance. Here we fabricate a protonic-ceramic fuel cell using a thin-film-deposited yttrium-doped barium zirconate electrolyte with no impeding grain boundaries owing to the columnar structure tightly integrated with nanogranular cathode and nanoporous anode supports, which to the best of our knowledge exhibits a record high-power output of up to an order of magnitude higher than those of other reported barium zirconate-based fuel cells.

UR - http://www.scopus.com/inward/record.url?scp=85013779139&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85013779139&partnerID=8YFLogxK

U2 - 10.1038/ncomms14553

DO - 10.1038/ncomms14553

M3 - Article

C2 - 28230080

AN - SCOPUS:85013779139

VL - 8

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 14553

ER -