TY - JOUR
T1 - Synthesis of silver nanoparticles in the presence of polyethylene glycol and their electrochemical behavior at a graphite electrode by cyclic voltammetry
AU - Perevezentseva, Darya O.
AU - Vaitulevich, Elena A.
AU - Bimatov, Vladimir V.
N1 - Publisher Copyright:
© 2018 Oriental Scientific Publishing Company. All rights reserved.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - The shape, size, optical properties and electrochemical activity of the silver nanoparticles (AgNPs) were studied, as well as their dependence on the amount of the reducing agent, the method of initiation of the formation of nanoparticles and the introduction order of reagents in the reaction mixture. It was determined that in the sols obtained without polyethylene glycol (PEG) AgNPs are predominant with the average size of 40 nm. With PEG the triangular AgNps predominate with the average size of 20 nm due to the silver ions reduction on the surface of the nuclei. It was determined that AgNPs are most active when obtained with PEG and the molar ratio [Ag]:[C6H5O73-] = 1:5. On the anodic branch of the cyclic AgNPs curve the splitting of anodic maximum into two due to AgNPs oxidation was observed.AgNPs obtained in the presence of PEG by light have the most electrochemical activity.The processes of AgNPs oxidation become easier when PEG is present which is caused by the formation of the most stable silver oxides.
AB - The shape, size, optical properties and electrochemical activity of the silver nanoparticles (AgNPs) were studied, as well as their dependence on the amount of the reducing agent, the method of initiation of the formation of nanoparticles and the introduction order of reagents in the reaction mixture. It was determined that in the sols obtained without polyethylene glycol (PEG) AgNPs are predominant with the average size of 40 nm. With PEG the triangular AgNps predominate with the average size of 20 nm due to the silver ions reduction on the surface of the nuclei. It was determined that AgNPs are most active when obtained with PEG and the molar ratio [Ag]:[C6H5O73-] = 1:5. On the anodic branch of the cyclic AgNPs curve the splitting of anodic maximum into two due to AgNPs oxidation was observed.AgNPs obtained in the presence of PEG by light have the most electrochemical activity.The processes of AgNPs oxidation become easier when PEG is present which is caused by the formation of the most stable silver oxides.
KW - Electrochemical behavior
KW - Polyethylene glycol
KW - Silver nanoparticles
KW - Sol Gel synthesis
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U2 - 10.13005/ojc/340267
DO - 10.13005/ojc/340267
M3 - Article
AN - SCOPUS:85047238401
VL - 34
SP - 1130
EP - 1135
JO - Oriental Journal of Chemistry
JF - Oriental Journal of Chemistry
SN - 0970-020X
IS - 2
ER -