High-performance protonic ceramic fuel cells with electrode-electrolyte composite cathode functional layers

Sung Jea Yang; Wanhyuk Chang; Heon Jun Jeong; Dong Hwan Kim; Joon Hyung Shim

doi:10.1002/er.7591

High-performance protonic ceramic fuel cells with electrode-electrolyte composite cathode functional layers

Sung Jea Yang, Wanhyuk Chang, Heon Jun Jeong, Dong Hwan Kim, Joon Hyung Shim

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

17 Citations (Scopus)

Abstract

This study reports the enhanced performance of protonic ceramic fuel cells by adopting electrode-electrolyte cathode functional layers (CFLs). PrBa_0.5Sr_0.5Co_1.5Fe_0.5O_5+δ (PBSCF) and BaZr_xCe_0.8−xY_0.1Yb_0.1O_3−δ (BZCYYb) were used as cathode and electrolyte materials, respectively. Thin-film CFLs comprising PBSCF and BZCYYb composites were inserted between the electrode and the electrolyte. Power output in the cells with CFLs was enhanced by approximately 4% to 20% at a temperature range of 450°C to 550°C, compared to those without CFLs. Impedance analysis confirmed that the polarization electrode resistance significantly reduced with the adoption of CFLs. The extended interface between the cathode and electrolyte in the CFLs was considered to have contributed to the reduced electrode impedance. The distribution of relaxation times analyzed by fitting the impedance data revealed the charge transfer and proton incorporation steps along with the PBSCF/BZCYYb interface in CFLs as the main contribution to the electrode performance enhancement in cathodic polarization reactions.

Original language	English
Pages (from-to)	6553-6561
Number of pages	9
Journal	International Journal of Energy Research
Volume	46
Issue number	5
DOIs	https://doi.org/10.1002/er.7591
Publication status	Published - 2022 Apr

Bibliographical note

Publisher Copyright:
© 2021 John Wiley & Sons Ltd.

Keywords

BaZrCeYYbO
PrBaSrCoFeO
cathode functional layer
distribution of relaxation times
protonic ceramic fuel cell

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Fuel Technology
Energy Engineering and Power Technology

UN SDGs

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

Access to Document

10.1002/er.7591

Cite this

@article{399ba26f4cd04c1b8c1d70a450b30a11,

title = "High-performance protonic ceramic fuel cells with electrode-electrolyte composite cathode functional layers",

abstract = "This study reports the enhanced performance of protonic ceramic fuel cells by adopting electrode-electrolyte cathode functional layers (CFLs). PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF) and BaZrxCe0.8−xY0.1Yb0.1O3−δ (BZCYYb) were used as cathode and electrolyte materials, respectively. Thin-film CFLs comprising PBSCF and BZCYYb composites were inserted between the electrode and the electrolyte. Power output in the cells with CFLs was enhanced by approximately 4% to 20% at a temperature range of 450°C to 550°C, compared to those without CFLs. Impedance analysis confirmed that the polarization electrode resistance significantly reduced with the adoption of CFLs. The extended interface between the cathode and electrolyte in the CFLs was considered to have contributed to the reduced electrode impedance. The distribution of relaxation times analyzed by fitting the impedance data revealed the charge transfer and proton incorporation steps along with the PBSCF/BZCYYb interface in CFLs as the main contribution to the electrode performance enhancement in cathodic polarization reactions.",

keywords = "BaZrCeYYbO, PrBaSrCoFeO, cathode functional layer, distribution of relaxation times, protonic ceramic fuel cell",

author = "Yang, {Sung Jea} and Wanhyuk Chang and Jeong, {Heon Jun} and Kim, {Dong Hwan} and Shim, {Joon Hyung}",

note = "Publisher Copyright: {\textcopyright} 2021 John Wiley & Sons Ltd.",

year = "2022",

month = apr,

doi = "10.1002/er.7591",

language = "English",

volume = "46",

pages = "6553--6561",

journal = "International Journal of Energy Research",

issn = "0363-907X",

publisher = "Wiley-Hindawi",

number = "5",

}

TY - JOUR

T1 - High-performance protonic ceramic fuel cells with electrode-electrolyte composite cathode functional layers

AU - Yang, Sung Jea

AU - Chang, Wanhyuk

AU - Jeong, Heon Jun

AU - Kim, Dong Hwan

AU - Shim, Joon Hyung

PY - 2022/4

Y1 - 2022/4

N2 - This study reports the enhanced performance of protonic ceramic fuel cells by adopting electrode-electrolyte cathode functional layers (CFLs). PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF) and BaZrxCe0.8−xY0.1Yb0.1O3−δ (BZCYYb) were used as cathode and electrolyte materials, respectively. Thin-film CFLs comprising PBSCF and BZCYYb composites were inserted between the electrode and the electrolyte. Power output in the cells with CFLs was enhanced by approximately 4% to 20% at a temperature range of 450°C to 550°C, compared to those without CFLs. Impedance analysis confirmed that the polarization electrode resistance significantly reduced with the adoption of CFLs. The extended interface between the cathode and electrolyte in the CFLs was considered to have contributed to the reduced electrode impedance. The distribution of relaxation times analyzed by fitting the impedance data revealed the charge transfer and proton incorporation steps along with the PBSCF/BZCYYb interface in CFLs as the main contribution to the electrode performance enhancement in cathodic polarization reactions.

AB - This study reports the enhanced performance of protonic ceramic fuel cells by adopting electrode-electrolyte cathode functional layers (CFLs). PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF) and BaZrxCe0.8−xY0.1Yb0.1O3−δ (BZCYYb) were used as cathode and electrolyte materials, respectively. Thin-film CFLs comprising PBSCF and BZCYYb composites were inserted between the electrode and the electrolyte. Power output in the cells with CFLs was enhanced by approximately 4% to 20% at a temperature range of 450°C to 550°C, compared to those without CFLs. Impedance analysis confirmed that the polarization electrode resistance significantly reduced with the adoption of CFLs. The extended interface between the cathode and electrolyte in the CFLs was considered to have contributed to the reduced electrode impedance. The distribution of relaxation times analyzed by fitting the impedance data revealed the charge transfer and proton incorporation steps along with the PBSCF/BZCYYb interface in CFLs as the main contribution to the electrode performance enhancement in cathodic polarization reactions.

KW - BaZrCeYYbO

KW - PrBaSrCoFeO

KW - cathode functional layer

KW - distribution of relaxation times

KW - protonic ceramic fuel cell

UR - http://www.scopus.com/inward/record.url?scp=85121699563&partnerID=8YFLogxK

U2 - 10.1002/er.7591

DO - 10.1002/er.7591

M3 - Article

AN - SCOPUS:85121699563

SN - 0363-907X

VL - 46

SP - 6553

EP - 6561

JO - International Journal of Energy Research

JF - International Journal of Energy Research

IS - 5

ER -

High-performance protonic ceramic fuel cells with electrode-electrolyte composite cathode functional layers

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this