BaCo0.7Fe0.22Y0.08O3-δas an Active Oxygen Reduction Electrocatalyst for Low-Temperature Solid Oxide Fuel Cells below 600 °c

Wei He; Xuelian Wu; Guangming Yang; Huangang Shi; Feifei Dong; Meng Ni

doi:10.1021/acsenergylett.6b00617

BaCo_0.7Fe_0.22Y_0.08O_3-δas an Active Oxygen Reduction Electrocatalyst for Low-Temperature Solid Oxide Fuel Cells below 600 °c

Wei He, Xuelian Wu, Guangming Yang, Huangang Shi, Feifei Dong, Meng Ni

Research output: Journal article publication › Review article › Academic research › peer-review

73 Citations (Scopus)

Abstract

Solid oxide fuel cells (SOFCs) offer great promise as sustainable energy conversion devices due to their high chemical-to-electrical conversion efficiency, flexible fuel sources, and low pollutions. In recent years, much effort has been devoted to developing intermediate temperature SOFCs. Central to the devices is the availability of a highly effective electrocatalyst for oxygen reduction reaction with reduced temperature operation, especially below 600 °C. Here we present a novel B-site Y-doped perovskite-type oxide BaCo0.7Fe0.22Y0.08O3-δ(BCFY) with extremely low polarization resistances (e.g., 0.10 ω cm2at 550 °C), which is ascribed to high cubic symmetry structure and fast oxygen kinetics. The superior electrocatalytic activity and stability enable BCFY to be a promising cathode candidate toward the application of reduced temperature SOFCs.

Original language	English
Pages (from-to)	301-305
Number of pages	5
Journal	ACS Energy Letters
Volume	2
Issue number	2
DOIs	https://doi.org/10.1021/acsenergylett.6b00617
Publication status	Published - 10 Feb 2017

ASJC Scopus subject areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

UN SDGs

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

More information

10.1021/acsenergylett.6b00617

http://hdl.handle.net/10397/95906

Cite this

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title = "BaCo0.7Fe0.22Y0.08O3-δas an Active Oxygen Reduction Electrocatalyst for Low-Temperature Solid Oxide Fuel Cells below 600 °c",

abstract = "Solid oxide fuel cells (SOFCs) offer great promise as sustainable energy conversion devices due to their high chemical-to-electrical conversion efficiency, flexible fuel sources, and low pollutions. In recent years, much effort has been devoted to developing intermediate temperature SOFCs. Central to the devices is the availability of a highly effective electrocatalyst for oxygen reduction reaction with reduced temperature operation, especially below 600 °C. Here we present a novel B-site Y-doped perovskite-type oxide BaCo0.7Fe0.22Y0.08O3-δ(BCFY) with extremely low polarization resistances (e.g., 0.10 ω cm2at 550 °C), which is ascribed to high cubic symmetry structure and fast oxygen kinetics. The superior electrocatalytic activity and stability enable BCFY to be a promising cathode candidate toward the application of reduced temperature SOFCs.",

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T1 - BaCo0.7Fe0.22Y0.08O3-δas an Active Oxygen Reduction Electrocatalyst for Low-Temperature Solid Oxide Fuel Cells below 600 °c

AU - He, Wei

AU - Wu, Xuelian

AU - Yang, Guangming

AU - Shi, Huangang

AU - Dong, Feifei

AU - Ni, Meng

PY - 2017/2/10

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AB - Solid oxide fuel cells (SOFCs) offer great promise as sustainable energy conversion devices due to their high chemical-to-electrical conversion efficiency, flexible fuel sources, and low pollutions. In recent years, much effort has been devoted to developing intermediate temperature SOFCs. Central to the devices is the availability of a highly effective electrocatalyst for oxygen reduction reaction with reduced temperature operation, especially below 600 °C. Here we present a novel B-site Y-doped perovskite-type oxide BaCo0.7Fe0.22Y0.08O3-δ(BCFY) with extremely low polarization resistances (e.g., 0.10 ω cm2at 550 °C), which is ascribed to high cubic symmetry structure and fast oxygen kinetics. The superior electrocatalytic activity and stability enable BCFY to be a promising cathode candidate toward the application of reduced temperature SOFCs.

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