PbO2 materials for electrochemical environmental engineering: A review on synthesis and applications

Lead dioxide (PbO2) materials have been widely employed in various fields such as batteries, electrochemical engineering, and more recently environmental engineering as anode materials, due to their unique physicochemical properties. Key performances of PbO2 electrodes, such as energy efficiency and...

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Bibliographic Details
Published in:The Science of the total environment 2023-01, Vol.855, p.158880-158880, Article 158880
Main Authors: Wang, Xi, Wang, Luyang, Wu, Dandan, Yuan, Du, Ge, Hang, Wu, Xu
Format: Article
Language:English
Subjects:
Doping
Electrocatalysts
Environment applications
Lead dioxide
Morphology
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Summary:Lead dioxide (PbO2) materials have been widely employed in various fields such as batteries, electrochemical engineering, and more recently environmental engineering as anode materials, due to their unique physicochemical properties. Key performances of PbO2 electrodes, such as energy efficiency and space-time yield, are influenced by morphological as well as compositional factors. Micro-nano structure regulation and decoration of metal/non-metal on PbO2 is an outstanding technique to revamp its electrocatalytic activities and enhance environmental engineering efficiency. The aim of this review is to comprehensively summarize the recent research progress in the morphology control, the structure constructions, and the element doping of PbO2 materials, further with many environmental application cases evaluated. Concerning electrochemical environmental engineering, the lead dioxide employed in chemical oxygen demand detection, ozone generators, and wastewater treatment has been comprehensively reviewed. In addition, the future research perspectives, challenges and the opportunities on PbO2 materials for environmental applications are proposed. [Display omitted] •Review elucidates recent insights on PbO2 in environmental applications•The phase composition, structures and related properties of PbO2 are detailed.•The doping of metals, metal oxides and non-metals on PbO2 are discussed.•The environmental applications and their electrocatalytic mechanism are summarized.•Several future perspectives and challenges on the significance of PbO2 are provided.
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2022.158880