Electrochemical properties of Ca1-xLaxTiO3 anode materials for solid oxide fuel cells

Jae Woo Park; Ki Tae Lee

Electrochemical properties of Ca_1-xLa_xTiO₃ anode materials for solid oxide fuel cells

Jae Woo Park
, Ki Tae Lee^*

^*Corresponding author for this work

Electronic Materials Engineering

Jeonbuk National University

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

Abstract

In this study, Ca_1-xLa_xTiO₃ (CLT, x = 0, 0.05, 0.1, 0.15, and 0.2) was characterized as an anode material for solid oxide fuel cells. The single-phase Ca_1-xLa_xTiO₃ powder was synthesized in a solid-state reaction via calcination at 1100°C in both oxidizing and reducing atmospheres. The total conductivity of Ca_1-xLa_xTiO₃ synthesized in a reducing atmosphere was higher than that of Ca_1-xLa_xTiO₃ synthesized in an oxidizing atmosphere at the same composition due to an increase in the amount of Ti³⁺ ions related to charge carrier, based on X-ray photoelectron spectroscopy (XPS) analysis. The Ca_1-xLa_xTiO₃ showed better tolerance to carbon deposition than Ni-YSZ, and the catalytic activity of the Ca_1-xLa_xTiO₃ synthesized in an oxidizing atmosphere decreased with increasing La content. Of the Ca_1-xLa_xTiO₃ synthesized in a reducing atmosphere, Ca_0.85La_0.15TiO₃ showed the best electrochemical performance.

Original language	English
Pages (from-to)	336-340
Number of pages	5
Journal	Journal of Ceramic Processing Research
Volume	18
Issue number	4
State	Published - 2017

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anode material
Carbon deposition
Oxide anode
Solid oxide fuel cells

Quacquarelli Symonds(QS) Subject Topics

Materials Science

Cite this

@article{64ef96ac16654f409c446947fec003f7,

title = "Electrochemical properties of Ca1-xLaxTiO3 anode materials for solid oxide fuel cells",

abstract = "In this study, Ca1-xLaxTiO3 (CLT, x = 0, 0.05, 0.1, 0.15, and 0.2) was characterized as an anode material for solid oxide fuel cells. The single-phase Ca1-xLaxTiO3 powder was synthesized in a solid-state reaction via calcination at 1100°C in both oxidizing and reducing atmospheres. The total conductivity of Ca1-xLaxTiO3 synthesized in a reducing atmosphere was higher than that of Ca1-xLaxTiO3 synthesized in an oxidizing atmosphere at the same composition due to an increase in the amount of Ti3+ ions related to charge carrier, based on X-ray photoelectron spectroscopy (XPS) analysis. The Ca1-xLaxTiO3 showed better tolerance to carbon deposition than Ni-YSZ, and the catalytic activity of the Ca1-xLaxTiO3 synthesized in an oxidizing atmosphere decreased with increasing La content. Of the Ca1-xLaxTiO3 synthesized in a reducing atmosphere, Ca0.85La0.15TiO3 showed the best electrochemical performance.",

keywords = "Anode material, Carbon deposition, Oxide anode, Solid oxide fuel cells",

author = "Park, \{Jae Woo\} and Lee, \{Ki Tae\}",

year = "2017",

language = "English",

volume = "18",

pages = "336--340",

journal = "Journal of Ceramic Processing Research",

issn = "1229-9162",

number = "4",

}

TY - JOUR

T1 - Electrochemical properties of Ca1-xLaxTiO3 anode materials for solid oxide fuel cells

AU - Park, Jae Woo

AU - Lee, Ki Tae

PY - 2017

Y1 - 2017

N2 - In this study, Ca1-xLaxTiO3 (CLT, x = 0, 0.05, 0.1, 0.15, and 0.2) was characterized as an anode material for solid oxide fuel cells. The single-phase Ca1-xLaxTiO3 powder was synthesized in a solid-state reaction via calcination at 1100°C in both oxidizing and reducing atmospheres. The total conductivity of Ca1-xLaxTiO3 synthesized in a reducing atmosphere was higher than that of Ca1-xLaxTiO3 synthesized in an oxidizing atmosphere at the same composition due to an increase in the amount of Ti3+ ions related to charge carrier, based on X-ray photoelectron spectroscopy (XPS) analysis. The Ca1-xLaxTiO3 showed better tolerance to carbon deposition than Ni-YSZ, and the catalytic activity of the Ca1-xLaxTiO3 synthesized in an oxidizing atmosphere decreased with increasing La content. Of the Ca1-xLaxTiO3 synthesized in a reducing atmosphere, Ca0.85La0.15TiO3 showed the best electrochemical performance.

AB - In this study, Ca1-xLaxTiO3 (CLT, x = 0, 0.05, 0.1, 0.15, and 0.2) was characterized as an anode material for solid oxide fuel cells. The single-phase Ca1-xLaxTiO3 powder was synthesized in a solid-state reaction via calcination at 1100°C in both oxidizing and reducing atmospheres. The total conductivity of Ca1-xLaxTiO3 synthesized in a reducing atmosphere was higher than that of Ca1-xLaxTiO3 synthesized in an oxidizing atmosphere at the same composition due to an increase in the amount of Ti3+ ions related to charge carrier, based on X-ray photoelectron spectroscopy (XPS) analysis. The Ca1-xLaxTiO3 showed better tolerance to carbon deposition than Ni-YSZ, and the catalytic activity of the Ca1-xLaxTiO3 synthesized in an oxidizing atmosphere decreased with increasing La content. Of the Ca1-xLaxTiO3 synthesized in a reducing atmosphere, Ca0.85La0.15TiO3 showed the best electrochemical performance.

KW - Anode material

KW - Carbon deposition

KW - Oxide anode

KW - Solid oxide fuel cells

UR - https://www.scopus.com/pages/publications/85026430798

M3 - Journal article

AN - SCOPUS:85026430798

SN - 1229-9162

VL - 18

SP - 336

EP - 340

JO - Journal of Ceramic Processing Research

JF - Journal of Ceramic Processing Research

IS - 4

ER -