{"title":"High Efficiency and Total Decomposition of Water by Pt−CoFe@CC Catalyst Loaded with a Small Amount of Pt","authors":"Yanqin Bi, Zenghua Zhao, Jianhua Qian, Liangliang Chen, Chunyang Duan","doi":"10.1002/cnma.202400366","DOIUrl":null,"url":null,"abstract":"The development of bifunctional electrocatalysts coupled with HER and OER activities in the same electrolyte to achieve overall water decomposition is more attractive and challenging for practical applications. Here, we prepared a CoFe-LDH catalyst via a hydrothermal method, and grew highly dispersed Pt−CoFe@CC bifunctional catalyst on a carbon cloth via the ethylene glycol thermal reduction method. The low content of Pt was limited to CoFe-LDH to balance the catalytic performance and cost, to achieve effective water decomposition. Surprisingly, the overall decomposition of water can be achieved with a voltage of only 1.6 V and good stability for up to 20 hours. This work provides a design idea and method for combining HER and OER bifunctional electrocatalysts.","PeriodicalId":54339,"journal":{"name":"ChemNanoMat","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ChemNanoMat","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/cnma.202400366","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The development of bifunctional electrocatalysts coupled with HER and OER activities in the same electrolyte to achieve overall water decomposition is more attractive and challenging for practical applications. Here, we prepared a CoFe-LDH catalyst via a hydrothermal method, and grew highly dispersed Pt−CoFe@CC bifunctional catalyst on a carbon cloth via the ethylene glycol thermal reduction method. The low content of Pt was limited to CoFe-LDH to balance the catalytic performance and cost, to achieve effective water decomposition. Surprisingly, the overall decomposition of water can be achieved with a voltage of only 1.6 V and good stability for up to 20 hours. This work provides a design idea and method for combining HER and OER bifunctional electrocatalysts.
在同一电解质中开发具有 HER 和 OER 活性的双功能电催化剂以实现水的整体分解对实际应用而言更具吸引力和挑战性。在此，我们通过水热法制备了 CoFe-LDH 催化剂，并通过乙二醇热还原法在碳布上生长了高度分散的 Pt-CoFe@CC 双功能催化剂。为了平衡催化性能和成本，CoFe-LDH 中的铂含量被限制在较低水平，以实现有效的水分解。令人惊讶的是，只需 1.6 V 的电压就能实现水的整体分解，且稳定性良好，可持续长达 20 小时。这项工作为 HER 和 OER 双功能电催化剂的结合提供了一种设计思路和方法。
ChemNanoMatEnergy-Energy Engineering and Power Technology
CiteScore
6.10
自引率
2.60%
发文量
236
期刊介绍：
ChemNanoMat is a new journal published in close cooperation with the teams of Angewandte Chemie and Advanced Materials, and is the new sister journal to Chemistry—An Asian Journal.
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