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Identifier 000425753
Title Ink development of Nickel Cobalt Oxides for printable supercapacitor electrodes
Alternative Title Ανάπτυξη αιωρημάτων Οξειδίου Νικελίου Κοβαλτίου για εκτυπώσιμα ηλεκτρόδια υπερπυκνωτών
Author Χαραλαμπάκης, Μιχάλης Κ.
Thesis advisor Ηλιόπουλος, Ελευθέριος
Reviewer Κυριακίδης, Γεώργιος
Χανιωτάκης, Νικόλαος
Abstract Nickel Cobalt Oxide (NCO) is a typical transition metal oxide material that has widely been investigated as an electrode material for supercapacitor applications. Due to its multiple oxidation states and high electronic conductivity for Faradaic redox reactions it is a suitable material for pseudocapacitive based electrodes. In literature it has been synthesized in a variety of different morphologies all exhibiting high specific capacitance and good electrochemical properties. In this thesis we present a variety of different synthetic routes with the goal to produce NCO nanoparticles that can be used as materials for the development of the first NCO dispersion with the same qualities as a printable ink. A protocol for synthesizing and characterizing nano-powder dispersions is being developed where the physicochemical and rheological properties can be modified according to the desired values. After achieving the suitable range designated by the inkjet printer manufacturer for successful inkjet printing, the as formulated NCO ink was used for the fabrication of NCO films on ITO glass substrates. By successfully optimizing all the printing parameters, excellent drop formation and printing quality, repeatability and stability was achieved. Finally, multilayered large size square thin films were deposited on the substrates to later be electrochemically characterized and used as supercapacitor electrodes.
Language English
Subject Inkjet
Issue date 2019-11-29
Collection   Faculty/Department--Faculty of Sciences and Engineering--Department of Physics--Post-graduate theses
  Type of Work--Post-graduate theses
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