Sensing reaching the stars: mild condition ZnO defect development for vitamin detection

IF 2.6 4区化学 Q3 ELECTROCHEMISTRY

Journal of Solid State Electrochemistry Pub Date : 2024-07-22 DOI:10.1007/s10008-024-06020-3

Anton Abramyan, Mikhail Golovin, Valeriya Zakharchenkova, Andrey Lalov, Dalibor Stanković, Oleg Bol’shakov

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Abstract

Here, we present the preparation and electrochemical evaluation of a vitamin B2-riboflavin (RF) sensor based on hierarchically structured zinc oxide (ZnO) of the wurtzite type. The highly crystalline ZnO obtained under hydrothermal conditions from a zinc peroxocomplex has the appearance of “micro-stars,” with an average size of 10 μm. Development of unusual morphology was accompanied by significant lattice defect introduction. Zinc oxide as an electroactive additive for carbon paste electrode was studied with electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and differential pulse voltammetry (DPV), which revealed excellent charge mobility and low resistivity. Electrochemical properties of the semiconductor allowed for development of riboflavin (RF) electrochemical sensor with an improved linearity range and a low limit of detection. The repeatability and stability of the sensor were at a satisfactory level for real-time measurements.

Graphical abstract

Conventional hydrothermal treatment of zinc peroxocomplex provided star-shaped zinc oxide microparticles with metal-deficient lattice. Increased defect concentration facilitated charge mobility, which helped in developing of sensor for relevant vitamin.

Abstract Image

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感知星空：用于维生素检测的温和条件氧化锌缺陷开发

在此，我们介绍了一种基于层状结构沃特兹型氧化锌（ZnO）的维生素 B2-核黄素（RF）传感器的制备和电化学评估。在水热条件下从锌过氧化物复合物中获得的高结晶氧化锌具有 "微星 "外观，平均尺寸为 10 μm。异常形态的形成伴随着晶格缺陷的显著引入。利用电化学阻抗谱（EIS）、循环伏安法（CV）和微分脉冲伏安法（DPV）研究了氧化锌作为碳浆电极电活性添加剂的情况，结果表明其具有出色的电荷迁移率和低电阻率。半导体的电化学特性使得核黄素（RF）电化学传感器的线性范围更宽，检测限更低。该传感器的重复性和稳定性达到了令人满意的实时测量水平。缺陷浓度的增加促进了电荷的迁移，有助于开发相关维生素的传感器。

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来源期刊

Journal of Solid State Electrochemistry 工程技术-电化学

CiteScore

4.80

自引率

4.00%

发文量

227

审稿时长

4.1 months

期刊介绍： The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.

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