• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Facile synthesis of a zeolitic imidazolate framework-8 with reduced graphene oxide hybrid material as an efficient electrocatalyst for nonenzymatic H2O2 sensing
【24h】

Facile synthesis of a zeolitic imidazolate framework-8 with reduced graphene oxide hybrid material as an efficient electrocatalyst for nonenzymatic H2O2 sensing

机译：沸石咪唑酯骨架-8的容易合成，用氧化石墨烯杂交材料作为非酶H2O2感测的有效电催化剂

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A zeolitic imidazolate framework-8 (ZIF-8)/reduced graphene oxide (rGO) nanocomposite was formed by using an efficient synthetic method. The morphology and structure of the ZIF-8/rGO nanocomposite were characterized by scanning electron spectroscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) mapping. The ZIF-8/rGO nanocomposites were immobilized on a carbon paste electrode (CPE) to construct a high-performance nonenzymatic electrochemical H2O2 sensor. A cyclic voltammetry (CV) study showed that the ZIF-8/rGO nanocomposites displayed better electrocatalytic activity toward H2O2 reduction compared to that of ZIF-8. An amperometric study indicated that the H2O2 sensor displayed high performance, which offered a low detection limit (0.05 M) (S/N = 3), a high sensitivity (4.01 A mM(-1) cm(-2)), and a wide linear range (from 1.0 to 625 M). An electrochemical reaction mechanism was proposed for H2O2 reduction on the ZIF-8/rGO/CPE. Importantly, the as-fabricated H2O2 sensor exhibited good reproducibility and excellent selectivity. Furthermore, the constructed high-performance sensor was utilized to monitor the H2O2 levels in real samples, and satisfactory results were obtained. These results demonstrated that the ZIF-8/rGO nanocomposite can be used as a good electrochemical sensor material in practical applications.
机译：通过使用有效的合成方法形成沸石Imidazolate框架-​​8（ZIF-8）/还原的氧化物（RGO）纳米复合材料。通过扫描电子光谱（SEM），X射线衍射（XRD）和热重分析（TGA）测绘，表征ZIF-8 / RGO纳米复合材料的形态和结构。将ZIF-8 / RGO纳米复合材料固定在碳糊电极（CPE）上以构建高性能非酶电化学H2O2传感器。循环伏安法（CV）的研究表明，与ZIF-8相比，ZIF-8 / RGO纳米复合材料与ZIF-8相比，对H 2 O 2的降低显示了更好的电催化活性。一个安培测定的研究表明，H2O2传感器显示出高性能，其提供低检测限（0.05米）（S / N = 3），高灵敏度（4.01amm（-1）cm（-2）），以及一个宽线性范围（1.0至625米）。提出了用于ZIF-8 / RGO / CPE的H 2 O 2的电化学反应机理。重要的是，AS制造的H2O2传感器表现出良好的再现性和优异的选择性。此外，使用构建的高性能传感器用于监测真实样品中的H2O2水平，并获得令人满意的结果。这些结果表明，ZIF-8 / RGO纳米复合材料可用于实际应用中的良好电化学传感器材料。

著录项

  • 来源
    《RSC Advances》 |2019年第27期|共7页
  • 作者

    Yang Suling; Xia Ning; Li Mengyu; Liu Panpan; Wang Yuxin; Qu Lingbo;

  • 作者单位

    Anyang Normal Univ Coll Chem &

    Chem Engn Anyang 455002 Peoples R China;

    Anyang Normal Univ Coll Chem &

    Chem Engn Anyang 455002 Peoples R China;

    Anyang Normal Univ Coll Chem &

    Chem Engn Anyang 455002 Peoples R China;

    Anyang Normal Univ Coll Chem &

    Chem Engn Anyang 455002 Peoples R China;

    Anyang Normal Univ Coll Chem &

    Chem Engn Anyang 455002 Peoples R China;

    Anyang Normal Univ Coll Chem &

    Chem Engn Anyang 455002 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号