THE EFFECT OF SHAPE AND SIZE OF SILVER NANOPARTICLES ON ELECTROCHEMICAL ACTIVITY OF SENSOR TO HYDROGEN PEROXIDE

IF 0.5 Q4 EDUCATION & EDUCATIONAL RESEARCH

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI:10.31788/rjc.2023.1628286

D. Perevezentseva, E. Gorchakov, E. Vaytulevich, Vladimir Bimatov

引用次数: 0

Abstract

The work considers the influence of the morphological characteristics of the AgNPs (form, sizes of silver nanoparticles (AgNPs), the average size of the area) from the composition of the reducing agent and their influence on the optical characteristics and electrochemical activity of the sensor based on the AgNPs to H2O2. The intensity of the optical spectra of absorption AgNPs and the electrochemical activity of the sensors based on them correlate with the size and shape of the particles. It is shown that the greatest electrochemical activity of H2O2 is possessed by AgNPs-based sensors obtained by using sodium citrate. The reason for increasing the electrochemical activity of the sensor based on the AgNPs obtained in the presence of the soft restorer of sodium citrate is an increase in the area of their active surface 1.3–2.7–3.3 μm2 due to the non-spherical form of particles (triangular, prismatic, pyramidal form), compared with spherical particles obtained using borhydridicitrate and borohydride-based reducing agents.

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银纳米粒子的形状和大小对传感器对过氧化氢电化学活性的影响

该工作考虑了还原剂组成对AgNPs的形态特征(形态、银纳米粒子(AgNPs)的尺寸、平均面积大小)的影响，以及它们对基于AgNPs的传感器对H2O2的光学特性和电化学活性的影响。吸收AgNPs的光谱强度和基于它们的传感器的电化学活性与颗粒的大小和形状有关。结果表明，柠檬酸钠制备的agnps传感器对H2O2的电化学活性最高。柠檬酸钠软还原剂存在下得到的AgNPs的电化学活性提高的原因是，与硼氢化盐和硼氢化盐基还原剂得到的球形颗粒相比，其非球形颗粒(三角形、棱柱形、锥体形)的活性表面面积增加了1.3 ~ 2.7 ~ 3.3 μm2。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rasayan Journal of Chemistry Energy-Energy (all)

CiteScore

1.90

自引率

0.00%

发文量

196

期刊介绍： RASĀYAN Journal of Chemistry [RJC] signifies a confluence of diverse streams of chemistry to stir up the cerebral powers of its contributors and readers. By introducing the journal by this name, we humbly intent to provide an open platform to all researchers, academicians and readers to showcase their ideas and research findings among the people of their own fraternity and to share their vast repository of knowledge and information. The journal seeks to embody the spirit of enquiry and innovation to augment the richness of existing chemistry literature and theories. We also aim towards making this journal an unparalleled reservoir of information and in process aspire to inculcate and expand the research aptitude.