Chlorine-anion doping induced multi-factor optimization in perovskties for boosting intrinsic oxygen evolution

Yinlong Zhu; Qian Lin; Zhenbin Wang; Dongchen Qi; Yichun Yin; Yu Liu; Xiwang Zhang; Zongping Shao; Huanting Wang

doi:10.1016/j.jechem.2020.03.055

Chlorine-anion doping induced multi-factor optimization in perovskties for boosting intrinsic oxygen evolution

Yinlong Zhu^*, Qian Lin, Zhenbin Wang, Dongchen Qi, Yichun Yin, Yu Liu, Xiwang Zhang, Zongping Shao, Huanting Wang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

98 Citations (Scopus)

Abstract

The oxygen evolution reaction (OER) plays a crucial role in many electrochemical energy technologies, and creating multiple beneficial factors for OER catalysis is desirable for achieving high catalytic efficiency. Here, we highlight a new halogen-chlorine (Cl)-anion doping strategy to boost the OER activity of perovskite oxides. As a proof-of-concept, proper Cl doping at the oxygen site of LaFeO₃ (LFO) perovskite can induce multiple favorable characteristics for catalyzing the OER, including rich oxygen vacancies, increased electrical conductivity and enhanced Fe-O covalency. Benefiting from these factors, the LaFeO_2.9-δCl_0.1 (LFOCl) perovskite displays significant intrinsic activity enhancement by a factor of around three relative to its parent LFO. This work uncovers the effect of Cl-anion doping in perovskites on promoting OER performance and paves a new way to design highly efficient electrocatalysts. © 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press.

Original language	English
Pages (from-to)	115-120
Journal	Journal of Energy Chemistry
Volume	52
Online published	25 Apr 2020
DOIs	https://doi.org/10.1016/j.jechem.2020.03.055
Publication status	Published - Jan 2021
Externally published	Yes

Funding

This work was financially supported by the Australian Research Council (Discovery Early Career Researcher Award No. DE190100005). The authors acknowledge Monash X-Ray Platform (MXP). Dr. D. Qi. acknowledges the support of the Australian Research Council (Grant No. FT160100207) and the ontinued support from the Queensland University of Technology (QUT) through the centre for Materials Science. Part of this research was undertaken on the Soft X-ray Spectroscopy beamline at the Australian Synchrotron, part of ANSTO.

Research Keywords

Anion doping
Halogen chlorine
Multiple beneficial factors
Oxygen evolution reaction
Perovskite oxide

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abstract = "The oxygen evolution reaction (OER) plays a crucial role in many electrochemical energy technologies, and creating multiple beneficial factors for OER catalysis is desirable for achieving high catalytic efficiency. Here, we highlight a new halogen-chlorine (Cl)-anion doping strategy to boost the OER activity of perovskite oxides. As a proof-of-concept, proper Cl doping at the oxygen site of LaFeO3 (LFO) perovskite can induce multiple favorable characteristics for catalyzing the OER, including rich oxygen vacancies, increased electrical conductivity and enhanced Fe-O covalency. Benefiting from these factors, the LaFeO2.9-δCl0.1 (LFOCl) perovskite displays significant intrinsic activity enhancement by a factor of around three relative to its parent LFO. This work uncovers the effect of Cl-anion doping in perovskites on promoting OER performance and paves a new way to design highly efficient electrocatalysts. {\textcopyright} 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press.",

keywords = "Anion doping, Halogen chlorine, Multiple beneficial factors, Oxygen evolution reaction, Perovskite oxide",

author = "Yinlong Zhu and Qian Lin and Zhenbin Wang and Dongchen Qi and Yichun Yin and Yu Liu and Xiwang Zhang and Zongping Shao and Huanting Wang",

year = "2021",

month = jan,

doi = "10.1016/j.jechem.2020.03.055",

language = "English",

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TY - JOUR

T1 - Chlorine-anion doping induced multi-factor optimization in perovskties for boosting intrinsic oxygen evolution

AU - Zhu, Yinlong

AU - Lin, Qian

AU - Wang, Zhenbin

AU - Qi, Dongchen

AU - Yin, Yichun

AU - Liu, Yu

AU - Zhang, Xiwang

AU - Shao, Zongping

AU - Wang, Huanting

PY - 2021/1

Y1 - 2021/1

N2 - The oxygen evolution reaction (OER) plays a crucial role in many electrochemical energy technologies, and creating multiple beneficial factors for OER catalysis is desirable for achieving high catalytic efficiency. Here, we highlight a new halogen-chlorine (Cl)-anion doping strategy to boost the OER activity of perovskite oxides. As a proof-of-concept, proper Cl doping at the oxygen site of LaFeO3 (LFO) perovskite can induce multiple favorable characteristics for catalyzing the OER, including rich oxygen vacancies, increased electrical conductivity and enhanced Fe-O covalency. Benefiting from these factors, the LaFeO2.9-δCl0.1 (LFOCl) perovskite displays significant intrinsic activity enhancement by a factor of around three relative to its parent LFO. This work uncovers the effect of Cl-anion doping in perovskites on promoting OER performance and paves a new way to design highly efficient electrocatalysts. © 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press.

AB - The oxygen evolution reaction (OER) plays a crucial role in many electrochemical energy technologies, and creating multiple beneficial factors for OER catalysis is desirable for achieving high catalytic efficiency. Here, we highlight a new halogen-chlorine (Cl)-anion doping strategy to boost the OER activity of perovskite oxides. As a proof-of-concept, proper Cl doping at the oxygen site of LaFeO3 (LFO) perovskite can induce multiple favorable characteristics for catalyzing the OER, including rich oxygen vacancies, increased electrical conductivity and enhanced Fe-O covalency. Benefiting from these factors, the LaFeO2.9-δCl0.1 (LFOCl) perovskite displays significant intrinsic activity enhancement by a factor of around three relative to its parent LFO. This work uncovers the effect of Cl-anion doping in perovskites on promoting OER performance and paves a new way to design highly efficient electrocatalysts. © 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press.

KW - Anion doping

KW - Halogen chlorine

KW - Multiple beneficial factors

KW - Oxygen evolution reaction

KW - Perovskite oxide

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DO - 10.1016/j.jechem.2020.03.055

M3 - RGC 21 - Publication in refereed journal

SN - 2095-4956

VL - 52

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EP - 120

JO - Journal of Energy Chemistry

JF - Journal of Energy Chemistry

ER -

Chlorine-anion doping induced multi-factor optimization in perovskties for boosting intrinsic oxygen evolution

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Research Keywords

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