{"title":"Efficient electrochemical hydrogen peroxide production enabled by defect engineering of epoxy-rich carbon materials","authors":"Yijian Liu, Lang Gan","doi":"10.1007/s11581-024-05741-9","DOIUrl":null,"url":null,"abstract":"<div><p>Introducing oxygenated species into carbon-based catalysts is an efficient method to enhance the activity of electrochemical hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production. Here, we report a low-temperature plasma strategy for preparing carbon materials rich in epoxy groups. This catalyst exhibits effective electrocatalytic activity, achieving H<sub>2</sub>O<sub>2</sub> selectivity over 90% and a Faraday efficiency of 94.9% after 12 h of constant H<sub>2</sub>O<sub>2</sub> production. The exceptional electrochemical activity is attributed to the epoxy group species, which are formed through the reaction between carbon defects and oxygen. This work offers an effective approach for preparing carbon-based catalysts for H<sub>2</sub>O<sub>2</sub> production and provides insights into the impact of oxygenated species on the activity for H<sub>2</sub>O<sub>2</sub> generation.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ionics","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11581-024-05741-9","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Introducing oxygenated species into carbon-based catalysts is an efficient method to enhance the activity of electrochemical hydrogen peroxide (H2O2) production. Here, we report a low-temperature plasma strategy for preparing carbon materials rich in epoxy groups. This catalyst exhibits effective electrocatalytic activity, achieving H2O2 selectivity over 90% and a Faraday efficiency of 94.9% after 12 h of constant H2O2 production. The exceptional electrochemical activity is attributed to the epoxy group species, which are formed through the reaction between carbon defects and oxygen. This work offers an effective approach for preparing carbon-based catalysts for H2O2 production and provides insights into the impact of oxygenated species on the activity for H2O2 generation.
期刊介绍：
Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.
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