One-Dimensional La0.2Sr0.8Cu0.4Co0.6O3−δ Nanostructures for Efficient Oxygen Evolution Reaction

Dongshuang Wu; Yidan Chen; Yuelei Bai; Chuncheng Zhu; Mingyi Zhang

doi:10.3390/nano14010064

One-Dimensional La_0.2Sr_0.8Cu_0.4Co_0.6O_3−δ Nanostructures for Efficient Oxygen Evolution Reaction

Dongshuang Wu
, Yidan Chen
, Yuelei Bai
, Chuncheng Zhu^*
, Mingyi Zhang^*

^*Corresponding author for this work

School of Astronautics

Harbin Normal University

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

4 Scopus citations

Abstract

Producing oxygen and hydrogen via the electrolysis of water has the advantages of a simple operation, high efficiency, and environmental friendliness, making it the most promising hydrogen production method. In this study, La_0.2Sr_0.8Cu_0.4Co_0.6O_3−δ (LSCC) nanofibers were prepared by electrospinning to utilize non-noble perovskite oxides instead of noble metal catalysts for the oxygen evolution reaction, and the performance and electrochemical properties of LSCC nanofibers synthesized at different firing temperatures were evaluated. In an alkaline environment (pH = 14, 6 M KOH), the nanofibers calcined at 650 °C showed an overpotential of 209 mV at a current density of 10 mA cm⁻² as well as good long-term stability. Therefore, the prepared LSCC-650 NF catalyst shows excellent potential for electrocatalytic oxygen evolution.

Original language	English
Article number	64
Journal	Nanomaterials
Volume	14
Issue number	1
DOIs	https://doi.org/10.3390/nano14010064
State	Published - Jan 2024

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

OER
electrospinning
nanofiber
perovskite

Access to Document

10.3390/nano14010064

Cite this

@article{dab73df4653340488cfb2795f564c072,

title = "One-Dimensional La0.2Sr0.8Cu0.4Co0.6O3−δ Nanostructures for Efficient Oxygen Evolution Reaction",

abstract = "Producing oxygen and hydrogen via the electrolysis of water has the advantages of a simple operation, high efficiency, and environmental friendliness, making it the most promising hydrogen production method. In this study, La0.2Sr0.8Cu0.4Co0.6O3−δ (LSCC) nanofibers were prepared by electrospinning to utilize non-noble perovskite oxides instead of noble metal catalysts for the oxygen evolution reaction, and the performance and electrochemical properties of LSCC nanofibers synthesized at different firing temperatures were evaluated. In an alkaline environment (pH = 14, 6 M KOH), the nanofibers calcined at 650 °C showed an overpotential of 209 mV at a current density of 10 mA cm−2 as well as good long-term stability. Therefore, the prepared LSCC-650 NF catalyst shows excellent potential for electrocatalytic oxygen evolution.",

keywords = "OER, electrospinning, nanofiber, perovskite",

author = "Dongshuang Wu and Yidan Chen and Yuelei Bai and Chuncheng Zhu and Mingyi Zhang",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2024",

month = jan,

doi = "10.3390/nano14010064",

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volume = "14",

journal = "Nanomaterials",

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T1 - One-Dimensional La0.2Sr0.8Cu0.4Co0.6O3−δ Nanostructures for Efficient Oxygen Evolution Reaction

AU - Wu, Dongshuang

AU - Chen, Yidan

AU - Bai, Yuelei

AU - Zhu, Chuncheng

AU - Zhang, Mingyi

PY - 2024/1

Y1 - 2024/1

N2 - Producing oxygen and hydrogen via the electrolysis of water has the advantages of a simple operation, high efficiency, and environmental friendliness, making it the most promising hydrogen production method. In this study, La0.2Sr0.8Cu0.4Co0.6O3−δ (LSCC) nanofibers were prepared by electrospinning to utilize non-noble perovskite oxides instead of noble metal catalysts for the oxygen evolution reaction, and the performance and electrochemical properties of LSCC nanofibers synthesized at different firing temperatures were evaluated. In an alkaline environment (pH = 14, 6 M KOH), the nanofibers calcined at 650 °C showed an overpotential of 209 mV at a current density of 10 mA cm−2 as well as good long-term stability. Therefore, the prepared LSCC-650 NF catalyst shows excellent potential for electrocatalytic oxygen evolution.

AB - Producing oxygen and hydrogen via the electrolysis of water has the advantages of a simple operation, high efficiency, and environmental friendliness, making it the most promising hydrogen production method. In this study, La0.2Sr0.8Cu0.4Co0.6O3−δ (LSCC) nanofibers were prepared by electrospinning to utilize non-noble perovskite oxides instead of noble metal catalysts for the oxygen evolution reaction, and the performance and electrochemical properties of LSCC nanofibers synthesized at different firing temperatures were evaluated. In an alkaline environment (pH = 14, 6 M KOH), the nanofibers calcined at 650 °C showed an overpotential of 209 mV at a current density of 10 mA cm−2 as well as good long-term stability. Therefore, the prepared LSCC-650 NF catalyst shows excellent potential for electrocatalytic oxygen evolution.

KW - OER

KW - electrospinning

KW - nanofiber

KW - perovskite

UR - https://www.scopus.com/pages/publications/85181894988

U2 - 10.3390/nano14010064

DO - 10.3390/nano14010064

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