Metal organic framework（ZIF-67）-derived Co nanoparticles/Ndoped carbon nanotubes composites for electrochemical detecting of tert-butyl hydroquinone
来源期刊：Rare Metals2021年第2期
论文作者：Jing Tang Sheng-Biao Zheng Si-Xun Jiang Jie Li Teng Guo Jia-Hao Guo
文章页码：478 - 488
摘 要：In this work,the framework of Co nanoparticles and nitrogen-doped carbon nanotubes（Co/NCNTs） derived from metal-organic frameworks（MOFs） through solid pyrolysis was successfully synthesized in the atmosphere of H2 and Ar gases.The Co/NCNTs composites exhibited superior electrocatalytic performance for tert-butyl hydroquinone（TBHQ） oxidation due to the synergistic effect between chemical composition and the specific structure of Co nanoparticles and nitrogen-doped carbon nanotubes.It was found that the reaction underwent a quasi-reversible redox reaction with 37-fold higher anodic current for TBHQ at Co/NCNT-modified electrode when compared to bare glassy carbon electrode（GCE）.In optimal condition,Co/NCNTs/GCE exhibited a linear range of0.05-80.00 μmol·L-1 for detecting TBHQ,and the limit of detection（LOD） was estimated to be as low as10 nmol·L-1（signal/noise of S/N=3）.Moreover,the asobtained modified electrode was successfully used to assay the content of TBHQ in edible oil samples.
Jing Tang，Sheng-Biao Zheng，Si-Xun Jiang，Jie Li，Teng Guo，Jia-Hao Guo
College of Chemistry and Material Engineering,Anhui Science and Technology University
摘 要：In this work,the framework of Co nanoparticles and nitrogen-doped carbon nanotubes（Co/NCNTs） derived from metal-organic frameworks（MOFs） through solid pyrolysis was successfully synthesized in the atmosphere of H2 and Ar gases.The Co/NCNTs composites exhibited superior electrocatalytic performance for tert-butyl hydroquinone（TBHQ） oxidation due to the synergistic effect between chemical composition and the specific structure of Co nanoparticles and nitrogen-doped carbon nanotubes.It was found that the reaction underwent a quasi-reversible redox reaction with 37-fold higher anodic current for TBHQ at Co/NCNT-modified electrode when compared to bare glassy carbon electrode（GCE）.In optimal condition,Co/NCNTs/GCE exhibited a linear range of0.05-80.00 μmol·L-1 for detecting TBHQ,and the limit of detection（LOD） was estimated to be as low as10 nmol·L-1（signal/noise of S/N=3）.Moreover,the asobtained modified electrode was successfully used to assay the content of TBHQ in edible oil samples.
关键词：
