{"title":"Metal-free catalysts for hydrogen peroxide production with electrocatalysis and photocatalysis","authors":"Qing Hu, Maocong Hu, Zhenhua Yao","doi":"10.1016/j.ces.2025.121621","DOIUrl":null,"url":null,"abstract":"<div><div>Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) is a widely used oxidant while energy consumption and environmental concerns are challengeable issues faced during its traditional production. The production of H<sub>2</sub>O<sub>2</sub> by electrocatalysis or photocatalysis is considered as economical and environmentally friendly approach while metal-free electrocatalysts and photocatalysts were intensively investigated in recent years. In this paper, we reviewed the progress of the applications of metal-free catalysts in electrocatalysis and photocatalysis for H<sub>2</sub>O<sub>2</sub> production, mainly focusing on catalyst design and preparation, characterization techniques employed, and reaction mechanism proposed. The shortcomings and limitations of metal-free catalysts were further discussed while the possible solutions were provided. The review would help the community to develop efficient, stable, and economical metal-free catalysts for the electrocatalytic and photocatalytic production of H<sub>2</sub>O<sub>2</sub>.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"311 ","pages":"Article 121621"},"PeriodicalIF":4.1000,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0009250925004440","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Hydrogen peroxide (H2O2) is a widely used oxidant while energy consumption and environmental concerns are challengeable issues faced during its traditional production. The production of H2O2 by electrocatalysis or photocatalysis is considered as economical and environmentally friendly approach while metal-free electrocatalysts and photocatalysts were intensively investigated in recent years. In this paper, we reviewed the progress of the applications of metal-free catalysts in electrocatalysis and photocatalysis for H2O2 production, mainly focusing on catalyst design and preparation, characterization techniques employed, and reaction mechanism proposed. The shortcomings and limitations of metal-free catalysts were further discussed while the possible solutions were provided. The review would help the community to develop efficient, stable, and economical metal-free catalysts for the electrocatalytic and photocatalytic production of H2O2.
期刊介绍:
Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline.
Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.