| 基于ZIF-67的Co3O4/C修饰电极制备及对多巴胺传感性能研究 |
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| 引用本文： | 庄晓利,韩超,张晨,张宇航,戴磊,孟伟,桑兆虎.基于ZIF-67的Co3O4/C修饰电极制备及对多巴胺传感性能研究[J].分析试验室,2021(3):265-269. |
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| 作者姓名： | 庄晓利 韩超 张晨 张宇航 戴磊 孟伟 桑兆虎 |
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| 作者单位： | 华北理工大学化学工程学院;唐山三友集团有限公司 |
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| 基金项目： | 国家自然科学基金(51772097);河北省高等学校科学技术研究项目(QN2019086);河北省博士后科研基金(B2020003031)项目资助。 |
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| 摘 要： | 以金属有机骨架材料ZIF-67为前驱体,经氩气气氛高温处理制备得到了Co2O4与碳复合材料(Co3O4/C)。通过X射线衍射仪(XRD)和扫描电子显微镜(SEM)对Co3O4/C的结构和形貌进行了表征。Co3O4/C保持了前驱体ZIF-67正十二面体形貌,并发生明显皱缩现象。采用循环伏安、恒电位等方法研究了Co3O4/C修饰玻碳电极(GCE)对多巴胺(DA)的传感性能。结果表明:在多巴胺浓度在5~500μmol/L范围内,Co3O4/C/GCE的氧化峰电流与浓度存在良好的线性关系,检测灵敏度高达283.09μA·L/(mmol·cm2)。此外,Co3O4/C/GCE还展示出良好的抗干扰能力、重现性和稳定性。
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| 关 键 词： | ZIF-6 Co3O4/C 多巴胺 电化学传感器 |
Preparation of CoO/C modified electrode based on ZIF-67 and its dopamine sensing performance |
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| ZHUANG Xiaoli,HAN Chao,ZHANG Chen,ZHANG Yuhang,DAI Lei,MENG Wei,SANG Zhaohu.Preparation of CoO/C modified electrode based on ZIF-67 and its dopamine sensing performance[J].Chinese Journal of Analysis Laboratory,2021(3):265-269. |
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| Authors: | ZHUANG Xiaoli HAN Chao ZHANG Chen ZHANG Yuhang DAI Lei MENG Wei SANG Zhaohu |
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| Institution: | (College of Chemical Engineering,North China University of Science and Technology,Tangshan 063210;Tangshan Sanyou Group Co.,Ltd,Tangshan 063000) |
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| Abstract: | The Co3O4/C composite was prepared under high temperature argon treatment by using ZIF-67 as the precursor.The structure and morphology of Co3O4/C were characterized by X-ray differentiation (XRD) and scanning electron microscope (SEM).Co3O4/C maintained the dodecahedral morphology of ZIF-67 precursor,however,it obviously shrinken.The sensing performance of the modified Co3O4/C/GCE electrode to dopamine(DA) was studied by cyclic voltammetry and potentiostatic method.The results showed that the oxidation peak current of Co3O4/C/GCE had a good linear relationship with the DA concentration in the range of 5-500μmol/L,and the detection sensitivity was as high as 283.09μA·L/(mmol·cm2).In addition,Co3O4/C/GCE also showed good anti-interference ability,reproducibility and stability. |
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| Keywords: | ZIF-67 Co3O4/C dopamine electrochemical sensor |
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