{"title":"过氧化氢电催化生产的进展与挑战","authors":"Changjie He, Zhaoyan Luo, Lei Zhang, Qianling Zhang, Chuanxin He, Xiangzhong Ren","doi":"10.1016/j.apcata.2024.119803","DOIUrl":null,"url":null,"abstract":"<div><p>The preparation of Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) by electrochemical two-electron oxygen reduction reaction (2e<sup>-</sup> ORR) and water oxidation reaction (2e<sup>-</sup> WOR) is a highly desirable method that can be green, clean and safe. However, the sluggish reaction kinetics and poor 2e<sup>-</sup> ORR and WOR selectivity severely limits scale-up applications. To resolve these challenges, research on cost-effective catalysts have been intensively explored, which have made great progress. Herein, we first introduced the fundamental chemistry and catalytic mechanism of ORR and WOR, including the possible reaction pathways, the binding modes of oxygen and water on the catalytic sites, and the energy-barrier diagrams of each stage of the reaction obtained by theoretical calculations. Then, the current progress of catalyst research for electrocatalytic synthesis of H<sub>2</sub>O<sub>2</sub> is discussed. Among them, single-atom catalysts as well as molecular catalysts are the hot spots of current research. Single-atom catalysts can reduce the amount of precious or non-precious metals used, and maintain catalytic activity while reducing costs; meanwhile, molecular catalysts have the advantages of single reaction performance, high selectivity, and clear mechanism, which are easy to design and grasp. Finally, on the basis of previous studies, the remaining challenges and development prospects of the current research on electrocatalytic production of H<sub>2</sub>O<sub>2</sub> are discussed, and suggestions are provided for the development of this field in the future.</p></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Progress and challenges for electrocatalytic production of hydrogen peroxide\",\"authors\":\"Changjie He, Zhaoyan Luo, Lei Zhang, Qianling Zhang, Chuanxin He, Xiangzhong Ren\",\"doi\":\"10.1016/j.apcata.2024.119803\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The preparation of Hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) by electrochemical two-electron oxygen reduction reaction (2e<sup>-</sup> ORR) and water oxidation reaction (2e<sup>-</sup> WOR) is a highly desirable method that can be green, clean and safe. However, the sluggish reaction kinetics and poor 2e<sup>-</sup> ORR and WOR selectivity severely limits scale-up applications. To resolve these challenges, research on cost-effective catalysts have been intensively explored, which have made great progress. Herein, we first introduced the fundamental chemistry and catalytic mechanism of ORR and WOR, including the possible reaction pathways, the binding modes of oxygen and water on the catalytic sites, and the energy-barrier diagrams of each stage of the reaction obtained by theoretical calculations. Then, the current progress of catalyst research for electrocatalytic synthesis of H<sub>2</sub>O<sub>2</sub> is discussed. Among them, single-atom catalysts as well as molecular catalysts are the hot spots of current research. Single-atom catalysts can reduce the amount of precious or non-precious metals used, and maintain catalytic activity while reducing costs; meanwhile, molecular catalysts have the advantages of single reaction performance, high selectivity, and clear mechanism, which are easy to design and grasp. Finally, on the basis of previous studies, the remaining challenges and development prospects of the current research on electrocatalytic production of H<sub>2</sub>O<sub>2</sub> are discussed, and suggestions are provided for the development of this field in the future.</p></div>\",\"PeriodicalId\":243,\"journal\":{\"name\":\"Applied Catalysis A: General\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-05-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis A: General\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926860X24002473\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis A: General","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926860X24002473","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Progress and challenges for electrocatalytic production of hydrogen peroxide
The preparation of Hydrogen peroxide (H2O2) by electrochemical two-electron oxygen reduction reaction (2e- ORR) and water oxidation reaction (2e- WOR) is a highly desirable method that can be green, clean and safe. However, the sluggish reaction kinetics and poor 2e- ORR and WOR selectivity severely limits scale-up applications. To resolve these challenges, research on cost-effective catalysts have been intensively explored, which have made great progress. Herein, we first introduced the fundamental chemistry and catalytic mechanism of ORR and WOR, including the possible reaction pathways, the binding modes of oxygen and water on the catalytic sites, and the energy-barrier diagrams of each stage of the reaction obtained by theoretical calculations. Then, the current progress of catalyst research for electrocatalytic synthesis of H2O2 is discussed. Among them, single-atom catalysts as well as molecular catalysts are the hot spots of current research. Single-atom catalysts can reduce the amount of precious or non-precious metals used, and maintain catalytic activity while reducing costs; meanwhile, molecular catalysts have the advantages of single reaction performance, high selectivity, and clear mechanism, which are easy to design and grasp. Finally, on the basis of previous studies, the remaining challenges and development prospects of the current research on electrocatalytic production of H2O2 are discussed, and suggestions are provided for the development of this field in the future.
期刊介绍:
Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications.
Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.