Engineering Nonprecious Metal Oxides Electrocatalysts for Two-Electron Water Oxidation to H_2O_2

Xin Hu; Zixu Sun; Guoliang MeiXin ZhaoBao Yu XiaBo You

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Engineering Nonprecious Metal Oxides Electrocatalysts for Two-Electron Water Oxidation to H_2O_2

机译：Engineering Nonprecious Metal Oxides Electrocatalysts for Two-Electron Water Oxidation to H_2O_2

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Hydrogen peroxide (H_2O_2) is a valuable chemical oxidant which has beenextensively applied in water treatment, textile/paper bleaching, medicaldisinfection, and other industrial fields. Electrocatalytic two-electron wateroxidation reaction (2e-WOR) with renewable energy inputs is an attractiveroute to produce H2O2, which avoids the energy-intensive anthraquinoneprocess in industry. However, leveraging these advances requires thedevelopment of efficient and selective electrocatalysts to accelerate thesluggish kinetics. In particular, nanostructured engineering of nonpreciousmetal oxides offers a promising route for 2e-WOR. In this review, the recentprogress on nanostructure engineering of various nonprecious metal oxideselectrocatalysts for 2e-WOR is reviewed, along with remarks on the challengesand perspectives. The fundamental understanding of 2e-WOR bydensity functional theory calculations and operando characterizations isfirst given, followed by a discussion of diverse H2O2 quantification methodsincluding ultraviolet–visible spectrophotometry, titration, and colorimetricstrips, with special emphasis on their accuracy, detection limit and stability.Afterward, various strategies toward high-performance nonprecious metaloxides electrocatalysts including doping, defect, facet, and interface engineeringare overviewed. Future challenges and opportunities for 2e-WOR toH2O2 are proposed finally.

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来源
《Advanced energy materials》 |2022年第32期|2201466.1-2201466.21|共21页
作者
Xin Hu; Zixu Sun; Guoliang MeiXin ZhaoBao Yu XiaBo You;
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作者单位

Key Lab for Special Functional Materials of Ministry of EducationNational and Local Joint Engineering Research Centerfor High Efficiency Display and Lighting TechnologySchool of Materials Science and EngineeringHenan UniversityKaifeng, Henan 475004, China;

Key Laboratory of Material Chemistry for EnergyConversion and StorageMinistry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan, Hubei 4;

School of ScienceWuhan University of TechnologyWuhan, Hubei 430070, China;

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正文语种英语
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hydrogen peroxide; metal oxides; nanostructure engineering; wateroxidation;

Engineering Nonprecious Metal Oxides Electrocatalysts for Two-Electron Water Oxidation to H_2O_2

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