高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (7): 1374-1380.doi: 10.7503/cjcu20180853

• 分析化学 • 上一篇    下一篇

介孔Co3O4多面体的制备及电化学性能

周海1,2, 陈豪1, 郭娅1, 康敏1,2()   

  1. 1. 遵义师范学院化学化工学院遵义 563006
    2. 遵义师范学院院士工作站, 遵义 563006
  • 收稿日期:2018-12-20 出版日期:2019-07-10 发布日期:2019-07-12
  • 作者简介:康 敏, 男, 博士, 副教授, 主要从事功能纳米材料的合成及性能研究. E-mail: 20056570@163.com
  • 基金资助:
    贵州省科学技术基金(批准号: [2015]2145, [2017]1208)和贵州省教育厅自然科学技术基金(批准号: [2015]394, [2016]093)资助.

Synthesis of Meso-porous Co3O4 Polyhedra and Their Electrochemical Properties

ZHOU Hai1,2, CHEN Hao1, GUO Ya1, KANG Min1,2,*()   

  1. 1. Department of Chemistry and Chemical Engineering, Zunyi Normal College Zunyi 563006, China
    2. Academician Workstation of Zunyi Normal College, Zunyi 563006, China
  • Received:2018-12-20 Online:2019-07-10 Published:2019-07-12
  • Contact: KANG Min E-mail:20056570@163.com
  • Supported by:
    † Supported by the Technology Foundation of the Science and Technology Department of Guizhou Province, China(Nos. [2015]2145, [2017]1208) and the Natural Science Research Project of Education Department of Guizhou Province, China(Nos. [2015]394, [2016]093).

摘要:

通过水热处理Co(NO3)2与(NH4)2S2O8合成了CoOOH多面体, 再经高温煅烧得到具有介孔结构的Co3O4多面体; 利用扫描电子显微镜(SEM)、 透射电子显微镜(TEM)、 X射线衍射(XRD)和N2吸附-脱附实验等手段对其结构和组成进行了表征; 研究了反应时间、 反应温度及(NH4)2S2O8浓度等因素对CoOOH多面体形貌的影响, 分析了CoOOH多面体的形成机理. 性能测试结果表明, 该介孔Co3O4多面体具有良好的葡萄糖电化学检测活性, 检测线性范围为0.05~1.8 mmol/L, 响应灵敏度为148 μA·cm-2·mmol·L-1, 检出限为1 μmol/L.

关键词: 水热合成, CoOOH多面体, 介孔Co3O4多面体, 过硫酸铵, 葡萄糖检测

Abstract:

CoOOH polyhedra was synthesized via hydrothermal treatment of Co(NO3)2 and (NH4)2S2O8, which was then transformed into meso-porous Co3O4 polyhedra via thermal annealing. The structure and composition of materials were characterized by means of scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffraction(XRD) and N2 adsorption-desorption. The influence of reaction time, reaction temperature and (NH4)2S2O8 concentration on the morphology of CoOOH polyhedra were investigated and the possible formation mechanism of CoOOH polyhedra was also analyzed. With respect to non-enzyme glucose sensing, the present Co3O4 polyhedra exhibited a linear detection range from 0.05 mmol/L to 1.8 mmol/L, a sensitivity of 148 μA·cm-2·mmol·L-1 and a detection limit of 1 μmol/L.

Key words: Hydrothermal synthesis, CoOOH polyhedra, Meso-porous Co3O4 polyhedra, Ammonium persulfate, Glucose sensing

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