BaCo0.7Fe0.22Y0.08O3-δ as 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-δ as 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

COLLEGE OF CHEMICAL ENGINEERING

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

73 Scopus citations

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 BaCo_0.7Fe_0.22Y_0.08O_3-δ (BCFY) with extremely low polarization resistances (e.g., 0.10 ω cm² at 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
State	Published - 10 Feb 2017

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title = "BaCo0.7Fe0.22Y0.08O3-δ as 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 cm2 at 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.",

author = "Wei He and Xuelian Wu and Guangming Yang and Huangang Shi and Feifei Dong and Meng Ni",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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doi = "10.1021/acsenergylett.6b00617",

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T1 - BaCo0.7Fe0.22Y0.08O3-δ as 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

Y1 - 2017/2/10

N2 - 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 cm2 at 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.

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 cm2 at 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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U2 - 10.1021/acsenergylett.6b00617

DO - 10.1021/acsenergylett.6b00617

M3 - 文献综述

AN - SCOPUS:85034079793

SN - 2380-8195

VL - 2

SP - 301

EP - 305

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 2

ER -

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

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