Chemical Modification of Surfaces and the Kinetics of Oxidation of Aqueous Salts of Silver Nanoparticles


Hydrosols of silver nanoparticles chemically modified with cysteine and cysteamine are obtained. Their oxidation with solutions containing active oxygen and chlorine forms is studied. It is shown that the grafted layer of the modifier does not affect the oxidation of the metal core with sodium hypochlorite, but it does have a protective effect in the reaction with hydrogen peroxide. The orders of the reaction for the initial and chemically modified nanoparticles are 1 for sodium hypochlorite, and 0 for hydrogen peroxide. Chemically modified nanoparticles tend to form aggregates.

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Correspondence to A. Yu. Olenin.

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Translated by V. Kudrinskaya

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Olenin, A.Y., Korotkov, A.S., Yagov, V.V. et al. Chemical Modification of Surfaces and the Kinetics of Oxidation of Aqueous Salts of Silver Nanoparticles. Russ. J. Phys. Chem. 95, 177–182 (2021).

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  • silver nanoparticles
  • chemical surface modification
  • cysteine
  • cysteamine
  • oxidation kinetics
  • sodium hypochlorite
  • hydrogen peroxide