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Updated: Sep 23, 2025

Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution
Published on: March 20, 2019
Gravimetric analysis of the autocatalytic growth of copper microparticles in aqueous solution
Jinuk Byun1, Kwang Hawn Kim1, Byung Keun Kim1
1School of Chemical and Biological Engineering, Seoul National University Gwanak-ro 1, Gwanak-gu Seoul 08826 Republic of Korea jjkimm@snu.ac.kr.
Abstract:
The growth kinetics of copper microparticles was analysed by using the gravimetric method. The copper microparticles were synthesized in aqueous solution containing cupric ion and HCHO under various conditions (temperature, additive) and the total mass was monitored during the synthesis. The relation between the total mass and time was formularized using heterogeneous and pseudo-first order reaction kinetics of the autocatalytic surface growth of copper with a modification of the Finke-Watzky kinetic model. Fitting of theoretical curves to the experimental results with various temperatures provided the rate constants of the surface growth, and the reaction activation energy was found from the Arrhenius plot to be 105.4 kJ mol-1. The obtained value was validated by comparing it with one from copper film growth. Its change was observed with the addition of 2,2'-dipyridyl during synthesis.
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