Aluminosilicate nanoparticles decorated by copper hexacyanoferrate as a good electrocatalyst for non-enzymatic hydrogen peroxide sensing

被引:0
作者
Norouzi, Banafsheh [1 ]
Tilami, Salma Ehsani [2 ]
Ahghari, Mohammad Reza [2 ]
机构
[1] Islamic Azad Univ, Dept Chem, Qaemshahr Branch, Qaemshahr, Iran
[2] Farhangian Univ, Dept Basic Sci, Tehran, Iran
关键词
Aluminosilicate nanoparticles; CuHCF; electrocatalyst; hydrogen peroxide; GLASSY-CARBON ELECTRODE; SPECTROFLUOROMETRIC DETERMINATION; ELECTROCHEMICAL SENSORS; COMPOSITE; CU+; REDUCTION; CATALYSTS; PLATINUM; PROPERTY; GLUCOSE;
D O I
10.1080/24701556.2021.2024231
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
In this work, porous amorphous aluminosilicates nanoparticles (PAS NPs) have been synthesized by the sol-gel method. The crystals particle sizes of PAS NPs were about 90 nm by SEM. Carbon paste modified PAS NPs/Cu (CPE/PAS NPs/Cu) was placed into a potassium hexacyanoferrate solution by continuous cycling of the potential for deposition of copper hexacyanoferrate (CuHCF) at the surface of CPE/PAS NPs/Cu. The cyclic voltammograms of CPE/PAS NPs/CuHCF show two pairs (Fe(CN)(6)(3-)/Fe(CN)(6)(4-) and Cu2+/Cu+) of redox couples due to the system. The total surface coverage of immobilized CuHCF was calculated at about 1.65 x 10(-7) mol cm(-2). Finally, this modified electrode responded to the different concentrations of hydrogen peroxide. The linear range and limit of detection (LOD) were 0.8-1.8 x 10(2) mu mol L-1 and 0.65 mu mol L-1, respectively. The fabrication of this electrode is easy and it is simple and low-cost. The stability, reproducibility, and repeatability of this modified electrode are acceptable.
引用
收藏
页码:110 / 119
页数:10
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