• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Preparation of reduced graphene oxide/Cu nanoparticle composites through electrophoretic deposition: application for nonenzymatic glucose sensing
【24h】

Preparation of reduced graphene oxide/Cu nanoparticle composites through electrophoretic deposition: application for nonenzymatic glucose sensing

机译：通过电泳沉积制备石墨烯氧化物/ Cu纳米颗粒复合材料的制备：用于非酶葡萄糖感测的应用

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

The paper reports on the simultaneous reduction/deposition of reduced graphene oxide/copper nanoparticles (rGO/Cu NPs) on a glass/Ti/Au electrode using an electrophoretic deposition (EPD) technique from a colloidal suspension of graphene oxide (GO) and copper sulphate (CuSO4) in ethanol. The method allows controlling the nanoparticle density by adjusting the deposition time. Structural characterization and chemical composition analysis of the modified electrode showed the simultaneous reduction of GO with the concomitant deposition of metallic CuNPs with a Cu(OH)(2) shell. The electrocatalytic activity of the modified electrode was evaluated for non-enzymatic glucose sensing in alkaline medium. While the Au electrode modified only with rGO did not show obvious electrocatalytic activity, the electrode coated with rGO/CuNPs exhibited excellent electrocatalytic behavior towards glucose oxidation with a high sensitivity of 447.65 mu A mM(-1) cm(-2). The response current of the sensor is linear to glucose concentrations up to 1.2 mM with a detection limit of 3.4 mu M. Furthermore, the interference from various oxidizable molecules such as dopamine, uric acid, ascorbic acid and carbohydrate molecules such as fructose, lactose and galactose was negligible, indicating a good selectivity of detection. The application of this glucose sensor in real samples has also been demonstrated successfully.
机译：本文使用来自石墨烯悬浮液（GO）和铜的胶体悬浮液的电泳沉积（EPD）技术在玻璃/ Ti / Au电极上同时减少/沉积在玻璃/ Ti / Au电极上的同时还原/沉积。硫酸盐（CusO4）在乙醇中。该方法允许通过调整沉积时间来控制纳米颗粒密度。改性电极的结构表征和化学成分分析显示，通过Cu（OH）（2）壳的伴随金属CUNP的同时还原。评价改性电极的电催化活性在碱性介质中的非酶促葡萄糖感测。虽然仅使用RGO改性的Au电极未显示出明显的电催化活性，但涂有RGO / CUNP的电极表现出优异的电催化行为，以高灵敏度为447.65μmm（-1）cm（-2）。传感器的响应电流是线性的，葡萄糖浓度高达1.2mm，检测限为3.4μm。此外，来自各种可氧化分子的干扰，如多巴胺，尿酸，抗坏血酸和碳水化合物分子，如果糖，乳糖和碳水化合物分子半乳糖可忽略不计，表明检测的良好选择性。该葡萄糖传感器在真实样品中的应用也已成功证明。

著录项

  • 来源
    《RSC Advances》 |2015年第21期|共9页
  • 作者

    Wang Qian; Wang Qi; Li Musen; Szunerits Sabine; Boukherroub Rabah;

  • 作者单位

    Univ Lille 1 Inst Rech Interdisciplinaire USR CNRS 3078 F-59658 Villeneuve Dascq France;

    Shandong Univ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Peoples R China;

    Shandong Univ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Peoples R China;

    Univ Lille 1 Inst Rech Interdisciplinaire USR CNRS 3078 F-59658 Villeneuve Dascq France;

    Univ Lille 1 Inst Rech Interdisciplinaire USR CNRS 3078 F-59658 Villeneuve Dascq France;

  • 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