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The synthesis of a lanthanum metal–organic framework and its sensitivity electrochemical detection of H2O2

Yancai Li, Yanmei Zhong, and Jixian Huang

College of Chemistry and Environment, Minnan Normal University, Zhangzhou, People’s Republic of China

 

E-mail: liyancai@mnnu.edu.cn

Abstract: A lanthanum metal–organic framework, [La(BTC)(H2O)(DMF)] (H3BTC = 1, 3, 5-benzenetricarboxylic acid), was synthesized under mild hydrothermal conditions. The synthesized [La(BTC)(H2O)(DMF)] was characterized by scanning electron microscopy in combination with energy dispersive X-ray spectroscopy (SEM/EDS), transmission electron microscopy (TEM), X-ray diffraction (XRD), and fourier transform infrared spectroscopy (FT-IR). Its electrochemical properties and electrocatalytic activity towards H2O2 reduction in acidic media were studied by cyclic voltammetry (CV) and amperometric current–time response. The [La(BTC)(H2O)(DMF)] modified electrode shows good electrochemical behavior and performs well electrocatalytic activity towards hydrogen peroxide (H2O2) reduction at ca. −0.7 V. The modified electrode displays a linear range from 5 μM to 2.67 mM and a limit of detection of 0.73 μM to H2O2. The [La(BTC)(H2O)(DMF)] modified electrode also possesses good selectivity and stability. Thus, [La(BTC)(H2O)(DMF)] will be a promising material for non-enzymatic H2O2 sensor.

Keywords: [La(BTC)(H2O)(DMF)]; Electrocatalytsis; Hydrogen peroxide; Non-enzymatic sensor

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-016-0011-9

 

Chemical Papers 71 (5) 913–920 (2017)

Wednesday, June 23, 2021

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