Promotion of Reversible Fuel-Power Generation in Protonic Ceramic Electrochemical Cell via Water-Mediated Ex-Solution

Sejong Ahn; Dongyeon Kim; Incheol Jeong; Hee Chan Kang; In Sik Lim; Gaon Heo; Dae Kwang Lim; Jun Kyu Kim; Ki Min Roh; Bonjae Koo; Jun Hyuk Kim; Kang Taek Lee; Woo Chul Jung

doi:10.1021/acsenergylett.5c02146

Promotion of Reversible Fuel-Power Generation in Protonic Ceramic Electrochemical Cell via Water-Mediated Ex-Solution

Sejong Ahn
, Dongyeon Kim
, Incheol Jeong
, Hee Chan Kang
, In Sik Lim
, Gaon Heo
, Dae Kwang Lim
, Jun Kyu Kim
, Ki Min Roh
, Bonjae Koo
, Jun Hyuk Kim^*
, Kang Taek Lee^*
, Woo Chul Jung^*

^*Corresponding author for this work

Department of Chemistry

Seoul National University
Korea Advanced Institute of Science and Technology
Korea Institute of Geoscience and Mineral Resources
Sungkyunkwan University
Korea Electric Power
Samsung
Sungshin Women's University

Research output: Contribution to journal › Journal article › peer-review

2 Scopus citations

Abstract

It is indicated that water can be an active motif for nanoparticle ex-solution. Yet, only a handful of studies are available, if possible, limited to the elemental composition of Ba(Co,Fe,Zr,Y)O_3−δas a mother oxide. Here we prove the versatility of water-mediated ex-solution by expanding the perovskite palettes. Among these, our selected composition (i.e., Ag ex-solved Ba_0.95Ag_0.05Co_0.8Nb_0.1Ta_0.1O_3-δ, e-BACNT) is demonstrated as an oxygen electrode material for protonic ceramic electrochemical cells, promoting efficient reversible fuel-power generation. Thereby, a peak power density of ∼1.81 W cm^–2and water-splitting current density of ∼2.93 A cm^–2at 1.3 V and 650 °C are achieved within a single cell. Apart from its notable cell performances, this work unveils new opportunities for creating functional metal-oxide heterointerfaces.

Original language	English
Pages (from-to)	4948-4956
Number of pages	9
Journal	ACS Energy Letters
Volume	10
DOIs	https://doi.org/10.1021/acsenergylett.5c02146
State	Published - 2025.01.1

Access to Document

10.1021/acsenergylett.5c02146

Cite this

@article{2c39cbd8b7a84681a8909b11262e6426,

title = "Promotion of Reversible Fuel-Power Generation in Protonic Ceramic Electrochemical Cell via Water-Mediated Ex-Solution",

abstract = "It is indicated that water can be an active motif for nanoparticle ex-solution. Yet, only a handful of studies are available, if possible, limited to the elemental composition of Ba(Co,Fe,Zr,Y)O3−δas a mother oxide. Here we prove the versatility of water-mediated ex-solution by expanding the perovskite palettes. Among these, our selected composition (i.e., Ag ex-solved Ba0.95Ag0.05Co0.8Nb0.1Ta0.1O3-δ, e-BACNT) is demonstrated as an oxygen electrode material for protonic ceramic electrochemical cells, promoting efficient reversible fuel-power generation. Thereby, a peak power density of ∼1.81 W cm–2and water-splitting current density of ∼2.93 A cm–2at 1.3 V and 650 °C are achieved within a single cell. Apart from its notable cell performances, this work unveils new opportunities for creating functional metal-oxide heterointerfaces.",

author = "Sejong Ahn and Dongyeon Kim and Incheol Jeong and Kang, \{Hee Chan\} and Lim, \{In Sik\} and Gaon Heo and Lim, \{Dae Kwang\} and Kim, \{Jun Kyu\} and Roh, \{Ki Min\} and Bonjae Koo and Kim, \{Jun Hyuk\} and Lee, \{Kang Taek\} and Jung, \{Woo Chul\}",

note = "Publisher Copyright: {\textcopyright} 2025 American Chemical Society",

year = "2025",

month = jan,

day = "1",

doi = "10.1021/acsenergylett.5c02146",

language = "English",

volume = "10",

pages = "4948--4956",

journal = "ACS Energy Letters",

issn = "2380-8195",

}

TY - JOUR

T1 - Promotion of Reversible Fuel-Power Generation in Protonic Ceramic Electrochemical Cell via Water-Mediated Ex-Solution

AU - Ahn, Sejong

AU - Kim, Dongyeon

AU - Jeong, Incheol

AU - Kang, Hee Chan

AU - Lim, In Sik

AU - Heo, Gaon

AU - Lim, Dae Kwang

AU - Kim, Jun Kyu

AU - Roh, Ki Min

AU - Koo, Bonjae

AU - Kim, Jun Hyuk

AU - Lee, Kang Taek

AU - Jung, Woo Chul

PY - 2025/1/1

Y1 - 2025/1/1

N2 - It is indicated that water can be an active motif for nanoparticle ex-solution. Yet, only a handful of studies are available, if possible, limited to the elemental composition of Ba(Co,Fe,Zr,Y)O3−δas a mother oxide. Here we prove the versatility of water-mediated ex-solution by expanding the perovskite palettes. Among these, our selected composition (i.e., Ag ex-solved Ba0.95Ag0.05Co0.8Nb0.1Ta0.1O3-δ, e-BACNT) is demonstrated as an oxygen electrode material for protonic ceramic electrochemical cells, promoting efficient reversible fuel-power generation. Thereby, a peak power density of ∼1.81 W cm–2and water-splitting current density of ∼2.93 A cm–2at 1.3 V and 650 °C are achieved within a single cell. Apart from its notable cell performances, this work unveils new opportunities for creating functional metal-oxide heterointerfaces.

AB - It is indicated that water can be an active motif for nanoparticle ex-solution. Yet, only a handful of studies are available, if possible, limited to the elemental composition of Ba(Co,Fe,Zr,Y)O3−δas a mother oxide. Here we prove the versatility of water-mediated ex-solution by expanding the perovskite palettes. Among these, our selected composition (i.e., Ag ex-solved Ba0.95Ag0.05Co0.8Nb0.1Ta0.1O3-δ, e-BACNT) is demonstrated as an oxygen electrode material for protonic ceramic electrochemical cells, promoting efficient reversible fuel-power generation. Thereby, a peak power density of ∼1.81 W cm–2and water-splitting current density of ∼2.93 A cm–2at 1.3 V and 650 °C are achieved within a single cell. Apart from its notable cell performances, this work unveils new opportunities for creating functional metal-oxide heterointerfaces.

UR - https://www.scopus.com/pages/publications/105016094547

U2 - 10.1021/acsenergylett.5c02146

DO - 10.1021/acsenergylett.5c02146

M3 - Journal article

AN - SCOPUS:105016094547

SN - 2380-8195

VL - 10

SP - 4948

EP - 4956

JO - ACS Energy Letters

JF - ACS Energy Letters

ER -

Promotion of Reversible Fuel-Power Generation in Protonic Ceramic Electrochemical Cell via Water-Mediated Ex-Solution

Abstract

Access to Document

Other files and links

Fingerprint

Cite this