High-performance electrocatalysts based core-shell SWCNHs@ZIF-67 heterostructure for ultrasensitive H2O2 sensing

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-14 DOI:10.1016/j.ijoes.2024.100689

Yile Hu, Jingge Shi, Zifan Wang, Xiaopeng Wang, Yujia Lai, Yanke Chen, Zhiqiang Wei, Hui Yang

{"title":"High-performance electrocatalysts based core-shell SWCNHs@ZIF-67 heterostructure for ultrasensitive H2O2 sensing","authors":"Yile Hu, Jingge Shi, Zifan Wang, Xiaopeng Wang, Yujia Lai, Yanke Chen, Zhiqiang Wei, Hui Yang","doi":"10.1016/j.ijoes.2024.100689","DOIUrl":null,"url":null,"abstract":"<div>ZIF-67 is a Co-based zeolitic imidazolate framework material with both redox metal active sites and organic functional groups. Single walled carbon nanohorns (SWCNHs) is a novel horn-shaped carbon nanomaterial with abundant carbon active sites and high conductivity. SWCNHs@ZIF-67 heterostructure composites were prepared by environmental-friendly method with ZIF-67 as core and SWCNHs as shell, then were ﬁxed on the surface of glassy carbon electrode (GCE) to obtain the electrochemical sensing platform for detecting H2O2. The as-proposed sensor (SWCNHs@ZIF-67/GCE) demonstrates excellent electrocatalytic performance for the reduction of H2O2 with two linearity scopes (0.50–150 µM, 150–400 µM) and a low detection limit of 0.15 μM, which is attributed to the synergistic electrocatalytic effect between ZIF-67 and SWCNHs. The as-fabricated sensor was satisfactorily used for H2O2 analysis in plasma samples, revealing an immense potential application in vitro assay of H2O2.</div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S145239812400230X/pdfft?md5=9bb2471d81ef9d6b7ed66915db63bec3&pid=1-s2.0-S145239812400230X-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S145239812400230X","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

ZIF-67 is a Co-based zeolitic imidazolate framework material with both redox metal active sites and organic functional groups. Single walled carbon nanohorns (SWCNHs) is a novel horn-shaped carbon nanomaterial with abundant carbon active sites and high conductivity. SWCNHs@ZIF-67 heterostructure composites were prepared by environmental-friendly method with ZIF-67 as core and SWCNHs as shell, then were ﬁxed on the surface of glassy carbon electrode (GCE) to obtain the electrochemical sensing platform for detecting H₂O₂. The as-proposed sensor (SWCNHs@ZIF-67/GCE) demonstrates excellent electrocatalytic performance for the reduction of H₂O₂ with two linearity scopes (0.50–150 µM, 150–400 µM) and a low detection limit of 0.15 μM, which is attributed to the synergistic electrocatalytic effect between ZIF-67 and SWCNHs. The as-fabricated sensor was satisfactorily used for H₂O₂ analysis in plasma samples, revealing an immense potential application in vitro assay of H₂O₂.

查看原文本刊更多论文

基于核壳 SWCNHs@ZIF-67 异质结构的高性能电催化剂用于超灵敏 H2O2 传感

ZIF-67 是一种具有氧化还原金属活性位点和有机功能基团的钴基沸石咪唑酸盐框架材料。单壁纳米碳角（SWCNHs）是一种新型角状碳纳米材料，具有丰富的碳活性位点和高导电性。采用环保方法制备了以 ZIF-67 为核，SWCNHs 为壳的 SWCNHs@ZIF-67 异质结构复合材料，并将其固定在玻璃碳电极（GCE）表面，从而获得了检测 H2O2 的电化学传感平台。拟制的传感器（SWCNHs@ZIF-67/GCE）在还原 H2O2 方面表现出优异的电催化性能，具有两种线性范围（0.50-150 µM、150-400 µM）和 0.15 μM 的低检测限，这归功于 ZIF-67 和 SWCNHs 之间的协同电催化作用。制备的传感器被成功用于血浆样品中的 H2O2 分析，揭示了 H2O2 体外检测的巨大应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.