Proton Conductivity and Relaxation Processes in Fumed Alumina/Silica – Water System

Authors

  • L. S. Andriyko Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • V. I. Zarko Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • E. V. Goncharuk Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
  • V. M. Gun'ko Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine

Abstract

The aim of the paper is investigation of relaxation processes and proton conductivity observed in water structures formed in 1–10 wt. % aqueous suspensions of fumed silica or alumina/silica. The latter contains 1–8 wt. % of alumina. The experiments have been performed using thermally stimulated depolarization current method. It has been shown that oxides promote the formation of 3D network with nanoparticles–water clusters causing the redistribution of sizes of water clusters observed in TSDC spectra. New relaxed structures are formed by nanosilica and these structures are unavailable in the bulk water.

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(1)
Andriyko, L. S.; Zarko, V. I.; Goncharuk, E. V.; Gun’ko, V. M. Proton Conductivity and Relaxation Processes in Fumed Alumina Silica – Water System. Him. Fiz. Tehnol. Poverhni 2012, 3, 283-290.

Issue

Vol. 3 No. 3 (2012): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni

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Articles

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