Abstract
Potassium polytitanates are new promising type of ferroelectric ceramic materials with high ionic conductivity, highly polarizable structure and extremely high permittivity. Its structure is formed by [TiO6] octahedral units to layers with mobile potassium and hydroxonium ions in-between. The treatment in solutions containing nickel ions allows forming heterostructured materials which consist of potassium polytitanate particles intercalated by Ni2+ ions and/or decorated by nickel oxides NiOx. This modification route is fully dependant on solution pH, i.e. in acidic solutions the intercalation process prevails, in alkaline solutions potassium polytitanate is mostly decorated by the oxides. Therefore, electronic structure and electrical properties can be regulated depending on modification conditions, pH and ions concentration. Here we report the data on electric properties of potassium titanate modified in nickel sulfate solutions at different pH.
Highlights
Potassium polytitanates are new promising type of ferroelectric ceramic materials with high ionic conductivity, highly polarizable structure and extremely high permittivity
The data highlights a soft chemistry method to regulate structure and electric properties of layered ceramic materials. These data show that modification of potassium polytitanate powders in aqueous solutions of nickel sulfate allows regulating the materials electric properties
The synthesized potassium polytitanate was carefully washed with distilled water three times (1 dm3 of H2O per 100 g of the product for each washing), filtrated (Whatman paper No 40) and dried at 60 1C in an oven to obtain the parent (X-ray) amorphous PPT powder characterized with the TiO2:K2O molar ratio 4:1
Summary
Potassium polytitanates are new promising type of ferroelectric ceramic materials with high ionic conductivity, highly polarizable structure and extremely high permittivity. Data on electrical properties of nickel modified potassium polytitanates compacted powders These data show that modification of potassium polytitanate powders in aqueous solutions of nickel sulfate allows regulating the materials electric properties (permittivity, ionic and electronic conductivity, dielectric losses).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
