Yueyu Tong, Liqun Wang, Feng Hou, Shi Xue Dou, Ji Liang
{"title":"Electrocatalytic Oxygen Reduction to Produce Hydrogen Peroxide: Rational Design from Single-Atom Catalysts to Devices.","authors":"Yueyu Tong, Liqun Wang, Feng Hou, Shi Xue Dou, Ji Liang","doi":"10.1007/s41918-022-00163-5","DOIUrl":null,"url":null,"abstract":"<p><p>Electrocatalytic production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) via the 2e<sup>-</sup> transfer route of the oxygen reduction reaction (ORR) offers a promising alternative to the energy-intensive anthraquinone process, which dominates current industrial-scale production of H<sub>2</sub>O<sub>2</sub>. The availability of cost-effective electrocatalysts exhibiting high activity, selectivity, and stability is imperative for the practical deployment of this process. Single-atom catalysts (SACs) featuring the characteristics of both homogeneous and heterogeneous catalysts are particularly well suited for H<sub>2</sub>O<sub>2</sub> synthesis and thus, have been intensively investigated in the last few years. Herein, we present an in-depth review of the current trends for designing SACs for H<sub>2</sub>O<sub>2</sub> production via the 2e<sup>-</sup> ORR route. We start from the electronic and geometric structures of SACs. Then, strategies for regulating these isolated metal sites and their coordination environments are presented in detail, since these fundamentally determine electrocatalytic performance. Subsequently, correlations between electronic structures and electrocatalytic performance of the materials are discussed. Furthermore, the factors that potentially impact the performance of SACs in H<sub>2</sub>O<sub>2</sub> production are summarized. Finally, the challenges and opportunities for rational design of more targeted H<sub>2</sub>O<sub>2</sub>-producing SACs are highlighted. We hope this review will present the latest developments in this area and shed light on the design of advanced materials for electrochemical energy conversion.</p><p><strong>Graphical abstract: </strong></p>","PeriodicalId":11680,"journal":{"name":"Electrochemical Energy Reviews","volume":"5 3","pages":"7"},"PeriodicalIF":28.4000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9437407/pdf/","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochemical Energy Reviews","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s41918-022-00163-5","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/9/2 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 12
Abstract
Electrocatalytic production of hydrogen peroxide (H2O2) via the 2e- transfer route of the oxygen reduction reaction (ORR) offers a promising alternative to the energy-intensive anthraquinone process, which dominates current industrial-scale production of H2O2. The availability of cost-effective electrocatalysts exhibiting high activity, selectivity, and stability is imperative for the practical deployment of this process. Single-atom catalysts (SACs) featuring the characteristics of both homogeneous and heterogeneous catalysts are particularly well suited for H2O2 synthesis and thus, have been intensively investigated in the last few years. Herein, we present an in-depth review of the current trends for designing SACs for H2O2 production via the 2e- ORR route. We start from the electronic and geometric structures of SACs. Then, strategies for regulating these isolated metal sites and their coordination environments are presented in detail, since these fundamentally determine electrocatalytic performance. Subsequently, correlations between electronic structures and electrocatalytic performance of the materials are discussed. Furthermore, the factors that potentially impact the performance of SACs in H2O2 production are summarized. Finally, the challenges and opportunities for rational design of more targeted H2O2-producing SACs are highlighted. We hope this review will present the latest developments in this area and shed light on the design of advanced materials for electrochemical energy conversion.
期刊介绍：
Shanghai University and the International Academy of Electrochemical Energy Science (IAOEES) collaborate to oversee Electrochemical Energy Reviews (EER). As the premier review journal of IAOEES, EER solely publishes top-tier scientific review articles that delve into the cutting-edge field of Advanced Materials for Electrochemical Energy Science and Technology.
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