一步法构建自支撑纳米多孔CuS/Cu电极及其无酶葡萄糖传感  

Self-supporting nano-porous CuS/Cu electrode construct by one-step method and its non-enzyme glucose sensing

作　　者：裴苑娇 覃利琴 陈渊 王瑞娟 陈樱纬 杨家添 PEI Yuan-jiao;QIN Li-qin;CHEN Yuan;WANG Rui-juan;CHEN Ying-wei;YANG Jia-tian(Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology,College of Chemistry and Food Science,Yulin Normal University,Yulin 537000,China)

机构地区：[1]广西农产资源化学与生物技术重点实验室,玉林师范学院化学与食品科学学院,广西玉林537000

出　　处：《化学研究与应用》2025年第2期366-372,共7页Chemical Research and Application

基　　金：玉林师范学院高层次人才科研启动基金(G2019ZK22)资助。

摘　　要：一步法构建自支撑电极,可以减少多步修饰过程中造成的误差,提高传感器的重复性和可控性。本文采用阴极沉积法在光滑铜电极表面一步制备纳米多孔CuS/Cu自支撑电极并用于葡萄糖的无酶传感,时间仅需100 s;详细考查了沉积时间和电解液浓度对葡萄糖电催化氧化性能的影响。结果表明,所构建的自支撑纳米多孔CuS/Cu电极对葡萄糖有良好的催化氧化性能,具有宽的线性范围(0.002~10.11 mmol/L),高的灵敏度(灵敏度为2439.7μA·mmol·L^(-1)·cm-^(2)),低的检测限0.06μmol/L(S/N=3),且该传感器具有良好的抗干扰能力和长期的贮存稳定性(18周),对葡萄糖注射液含量的检测效果良好。One-step method to construct self-supporting electrodes can reduce errors caused by multi-step modification processes and improve the repeatability and controllability of sensors.In this study,a self-supporting nano-porous CuS/Cu electrode was one-step fabricated from smooth Cu electrode by cathodic deposition method and uses it for enzyme-free sensing of glucose.The fabrication time is just 100 s.The effects of deposition time and electrolyte concentration on the electrocatalytic oxidation performance of glucose were investigated in detail.The self-supporting nano-porous CuS/Cu electrode showed brilliant catalytic oxidation performance of glucose,with a wide linear range(0.002~10.11 mmol/L)and favorable sensitivity(sensitivity of 2439.7μA·mmol·L~(-1)·cm~(-^(2))),low detection limit of 0.06μmol/L(S/N=3),and this sensor has good anti-interference ability and long-term storage stability(18 weeks),with good detection effect on the content of glucose injection.

关 键 词：阴极沉积 纳米多孔 自支撑电极 葡萄糖 

分 类 号：O614.1[理学—无机化学]