Published September 13, 2021 | Version v1
Working paper Open

Conduction Currents on ZnO oil based Nanofluids under microsecond voltage pulses: a two-steps electric current measuring technique

  • 1. BioGRID Grupo de Investigación y Desarrollo en Ciencias, Tecnología e Innovación, SoPhiC Sociedad de Doctores e Investigadores de Colombia, Bogotá, Colombia.
  • 2. School of Chemical Science and Engineering, Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
  • 3. Independiente


A two-step electric current measuring technique used by the authors in previous works is here detailed for the first time. This technique allows measuring the electric conduction currents that are overridden by orders of magnitude larger displacement currents. By performing two sets of measurements, the technique allows to cancel out the displacement currents, retrieving only the conduction currents from the measurements. In this work, the technique is applied in the study of the electrical conduction of mineral oil-based nanofluids prepared with surface modified ZnO nanoparticles. The results show that the ZnO nanoparticles introduce charge generation mechanisms within the mineral oil that increases the measured conduction currents, in agreement with the literature. 


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