SEE/
Articles/
2504000193
  • Open Access
  • Review
Advanced Carbon Electrocatalysts for Selective Oxygen Reduction into Hydrogen Peroxide: Understandings of Active Sites
  • Jiaxin Su 1, 2,   
  • Bingbing Xiao 1, 2,   
  • Jun Wang 1, 2, *,   
  • Xiaofeng Zhu 1, 2, *

Received: 17 Jan 2024 | Revised: 25 Jan 2024 | Accepted: 19 Feb 2024 | Published: 05 Mar 2024

Abstract

Electrochemical conversion of oxygen-to-hydrogen peroxide (H2O2) through oxygen reduction (ORR) is becoming a green and effective solution to replacing conventional anthraquinone industry. Advanced carbon is currently one of the most promising catalysts for H2O2 electrosynthesis by a selective two-electron ORR (2e-ORR), owing to its chemical and catalytic merits. To realize better performance of 2e-ORR over advanced carbons, extensive efforts is devoted to constructing highly efficient carbon-based active sites, which requests in-depth understanding of their underlying catalytic roles. Here, an informative and critical review of recent investigations on active sites on advanced carbons for 2e-ORR is provided. Together with our recent findings, the review first highlights the promoting progress on heteroatom-doped carbons, and their direct/indirect contributions for 2e-ORR has been emphasized. Simultaneously, defect engineering of carbon scaffold is briefly demonstrated as a practical strategy for achieving outstanding H2O2 production. Meanwhile, the review also offers analysis on striking influence of surface modification for carbon active site. Finally, challenges and perspectives of the advanced carbon catalysts for 2e-ORR are outlined. Such reviewed fundamentals of active sites in this emerging field would shed light to future impactful progress in ORR and broader research of energy and catalysis.

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DOI
10.53941/see.2024.100004
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Volume 1, Issue 1
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Su, J.; Xiao, B.; Wang, J.; Zhu, X. Advanced Carbon Electrocatalysts for Selective Oxygen Reduction into Hydrogen Peroxide: Understandings of Active Sites. Science for Energy and Environment 2024, 1 (1), 4. https://doi.org/10.53941/see.2024.100004.
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