SrNb0.1Co0.7Fe0.2O3-δ perovskite as a next-generation electrocatalyst for oxygen evolution in alkaline solution

Yinlong Zhu; Wei Zhou; Zhi Gang Chen; Yubo Chen; Chao Su; Moses O. Tadé; Zongping Shao

doi:10.1002/anie.201408998

SrNb_0.1Co_0.7Fe_0.2O_3-δ perovskite as a next-generation electrocatalyst for oxygen evolution in alkaline solution

Yinlong Zhu, Wei Zhou, Zhi Gang Chen, Yubo Chen, Chao Su, Moses O. Tadé, Zongping Shao

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

427 Citations (Scopus)

Abstract

The perovskite SrNb_0.1Co_0.7Fe_0.2O_3-δ (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits a higher intrinsic OER activity, a smaller Tafel slope and better stability than the state-of-the-art precious-metal IrO₂ catalyst and the well-known BSCF perovskite. The mass activity and stability are further improved by ball milling. Several factors including the optimized e_g orbital filling, good ionic and charge transfer abilities, as well as high OH^- adsorption and O₂ desorption capabilities possibly contribute to the excellent OER activity.

Original language	English
Pages (from-to)	3897-3901
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	54
Issue number	13
DOIs	https://doi.org/10.1002/anie.201408998
Publication status	Published - 23 Mar 2015
Externally published	Yes

Keywords

energy storage and conversion
intrinsic activity
oxygen evolution reaction
perovskites

Access to Document

10.1002/anie.201408998

Cite this

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title = "SrNb0.1Co0.7Fe0.2O3-δ perovskite as a next-generation electrocatalyst for oxygen evolution in alkaline solution",

abstract = "The perovskite SrNb0.1Co0.7Fe0.2O3-δ (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits a higher intrinsic OER activity, a smaller Tafel slope and better stability than the state-of-the-art precious-metal IrO2 catalyst and the well-known BSCF perovskite. The mass activity and stability are further improved by ball milling. Several factors including the optimized eg orbital filling, good ionic and charge transfer abilities, as well as high OH- adsorption and O2 desorption capabilities possibly contribute to the excellent OER activity.",

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T1 - SrNb0.1Co0.7Fe0.2O3-δ perovskite as a next-generation electrocatalyst for oxygen evolution in alkaline solution

AU - Zhu, Yinlong

AU - Zhou, Wei

AU - Chen, Zhi Gang

AU - Chen, Yubo

AU - Su, Chao

AU - Tadé, Moses O.

AU - Shao, Zongping

PY - 2015/3/23

Y1 - 2015/3/23

N2 - The perovskite SrNb0.1Co0.7Fe0.2O3-δ (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits a higher intrinsic OER activity, a smaller Tafel slope and better stability than the state-of-the-art precious-metal IrO2 catalyst and the well-known BSCF perovskite. The mass activity and stability are further improved by ball milling. Several factors including the optimized eg orbital filling, good ionic and charge transfer abilities, as well as high OH- adsorption and O2 desorption capabilities possibly contribute to the excellent OER activity.

AB - The perovskite SrNb0.1Co0.7Fe0.2O3-δ (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits a higher intrinsic OER activity, a smaller Tafel slope and better stability than the state-of-the-art precious-metal IrO2 catalyst and the well-known BSCF perovskite. The mass activity and stability are further improved by ball milling. Several factors including the optimized eg orbital filling, good ionic and charge transfer abilities, as well as high OH- adsorption and O2 desorption capabilities possibly contribute to the excellent OER activity.

KW - energy storage and conversion

KW - intrinsic activity

KW - oxygen evolution reaction

KW - perovskites

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