干旱区生态环境知识资源中心(Arid): Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater

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DOI	10.1007/s10562-024-04753-4
	Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater
	Cao, Jianzhao; Riaz, Salman; Qi, Zhaoxiang; Zhao, Ke; Qi, Ying; Wei, Peng; Xie, Yahong
通讯作者	Xie, YH
来源期刊	CATALYSIS LETTERS
ISSN	1011-372X
EISSN	1572-879X
出版年	2024
英文摘要	Developing highly efficient catalysts for oxygen evolution reactions (OER) in complex water environments is crucial for promoting the photovoltaic electrolysis of water splitting for hydrogen production in arid areas. However, traditional catalysts often exhibit limitations in terms of reaction kinetics and electrode corrosion resistance. In this work, we successfully prepared a self-supporting perovskite complex oxide La0.7Sr0.3CoO3-delta/NF (LSC/NF) catalyst by means of simple hydrothermal synthesis combined with programmed annealing, and successfully applied to OER reaction in oilfield wastewater. In alkaline oilfield wastewater, at a current density of 10 mA cm-2, LSC/NF requires only 411 mV of overpotential, which is lower than that of LSC (493 mV) and traditional catalyst RuO2 (451 mV), suggesting a high OER catalytic activity. The good electrocatalytic activity can be attributed to its superhydrophilicity, increased electrochemical active surface area, faster reaction kinetics and higher oxygen vacancy concentration. This research offers valuable new insights for the development of OER electrocatalysts with high catalytic activity in complex water systems in arid areas.Graphical AbstractA self-supporting perovskite oxide catalyst La0.7Sr0.3CoO3-delta/NF was synthesized by a simple process combining hydrothermal and annealing. The growth of perovskite oxide nanosheets directly on the conductive nickel foam matrix gives the catalyst a strong hydrophilicity and significantly expands its electrochemical active surface area, thus enhancing the OER activity of LSC/NF in oilfield wastewater.
英文关键词	Perovskite oxides Superhydrophilicity Oil wastewater Nanoarray Oxygen evolution reaction
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001251049400001
WOS关键词	HYDROGEN EVOLUTION ; RECONSTRUCTION ; CATALYST ; DESIGN
WOS类目	Chemistry, Physical
WOS研究方向	Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403114
推荐引用方式 GB/T 7714	Cao, Jianzhao,Riaz, Salman,Qi, Zhaoxiang,et al. Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater[J],2024.
APA	Cao, Jianzhao.,Riaz, Salman.,Qi, Zhaoxiang.,Zhao, Ke.,Qi, Ying.,...&Xie, Yahong.(2024).Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater.CATALYSIS LETTERS.
MLA	Cao, Jianzhao,et al."Superhydrophilic Self-supported Perovskite Oxides for Oxygen Evolution Reactions in Oilfield Wastewater".CATALYSIS LETTERS (2024).