形貌可控钒酸铜纳米晶的水热合成及其电化学传感性能（英文）

发布时间：2018-02-16 12:11

本文关键词： 钒酸铜纳米晶水热合成电化学传感抗坏血酸　出处：《Transactions of Nonferrous Metals Society of China》2017年05期 　论文类型：期刊论文

【摘要】：形貌可控钒酸铜纳米晶在电化学传感应用上具有非常重要的意义。采用简便的水热合成方法,制备出一系列具有不同形貌的的钒酸铜纳米晶(纳米颗粒,纳米带和纳米花)。采用XRD、SEM和循环伏安法(CV)等测试技术,对各种钒酸铜纳米晶产物的物相组成、形貌和电化学性能进行表征。结果表明,Cu_3V_2O_7(OH)_2·2H_2O(CVOH)晶体的形貌可以通过改变铜盐、表面活性剂种类以及溶液p H值进行调控。采用CVOH纳米晶作为活性材料修饰玻碳电极(GCEs)发现,电极对抗坏血酸的响应性能增强。比较三种不同形貌的钒酸铜纳米晶,纳米带状对电极的增强效应最显著。钒酸铜纳米带修饰GCEs电化学感应抗坏血酸,其CV的峰值电流与其浓度呈正比。因此,CVOH纳米晶体可作为检测抗坏血酸的电化学活性材料。
[Abstract]:The morphology controllable copper vanadate nanocrystalline has very important significance in the electrochemical sensing application. A series of copper vanadate nanocrystals (nanoparticles) with different morphologies have been prepared by a simple hydrothermal synthesis method. The phase composition, morphology and electrochemical properties of various kinds of copper vanadate nanocrystalline products were characterized by means of XRDX SEM and cyclic voltammetry (CVV). The results showed that the morphology of Cu3V2O7OHV CVOHs could be changed by changing the copper salt. The CVOH nanocrystalline was used as the active material to modify the glassy carbon electrode. It was found that the electrode's response to ascorbic acid was enhanced. Three kinds of copper vanadate nanocrystals with different morphologies were compared. Copper vanadate nanoribbon modified GCEs electrochemical induction ascorbic acid, the peak current of CV is proportional to its concentration, so the nanocrystalline can be used as the electrochemical active material for ascorbic acid detection.
【作者单位】：郑州大学化工与能源学院;郑州大学材料科学与工程学院;
【基金】：Projects(51404213,51404214,51574205,51172211)supported by the National Natural Science Foundation of China Projects(14HASTIT011,154100510003)supported by the Program for University Science and Technology Innovation Talents of Henan Province,China Projects(2013M531682,2014T70682)supported by the China Postdoctoral Science Fund Project(1421324065)supported by the Development Fund for Outstanding Young Teachers of Zhengzhou University,China
【分类号】：O657.1;TB383.1

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