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Zirconium(IV) oxide is used as an additive in the production of piezoelectric crystals, in high-frequency induction coils and in ceramic glazes. It finds application as a solid electrolyte in electrochromic devices and precursor to the electroceramic lead zirconate titanate (PZT), as an insulator in transistors, as a thermal barrier coating in jet and diesel engines and as a diamond simulant in jewelry. It is used in oxygen sensors, fuel cell membranes and in orthopaedic implants of hip joints. It is coated on the silica gel surface and found to be used in the extraction of chromium from aqueous solutions at a pH of about 3.
Saha, I.; Ghosh, A.; Nandi, D.; Gupta, K.; Chatterjee, D.; Ghosh, U. C. beta-Cyclodextrin modified hydrous zirconium oxide: Synthesis, characterization and defluoridation performance from aqueous solution. Chem. Eng. J. 2015, 263, 220-230.
Rutkowska, I. A.; Sek, J. P.; Mehdi, B. L.; Kulesza, P. J.; Cox, J. A. Assembly of crosslinked oxo-cyanoruthenate and zirconium oxide bilayers: Application in electrocatalytic films based on organically modified silica with templated pores. Electrochim. Acta 2014, 122, 197-203.