ZnO formation through decomposition of zinc bis(ethyl acetoacetate) by steaming treatment
- 13 Downloads
Zinc bis(ethyl acetoacetate) (Zn(etac)2) was steamed with water vapor at various temperatures (40–70 °C). A portion of the ethyl acetoacetato group was dissociated upon steaming Zn(etac)2 at 40 °C. However, zinc oxide (ZnO) was not formed. On steaming at 50 °C, the ethyl acetoacetato group was completely removed. The Zn(etac)2 steamed at 50 °C was attributed to the wurtzite ZnO, but impurity was contaminated. Zn(etac)2 steamed at 60–70 °C was converted into pure wurtzite ZnO powder. The Zn(etac)2 could be decomposed by water vapor; interestingly, wurtzite ZnO powder was formed from Zn(etac)2 by steaming treatment at low temperature. Moreover, a Zn(etac)2 solution was coated on a glass substrate followed by steaming at 70 °C; a thin film showed a transparency and a flat surface.
Zn(etac)2 was prepared by the reaction of diethylzinc with ethyl acetoacetate.
Zn(etac)2 was decomposed in hot water vapor.
Zn(etac)2 was converted into wurtzite ZnO powder in water vapor at 60–70 °C.
KeywordsZinc β-ketoester complex Low-temperature growth of ZnO FTIR spectra Wurtzite ZnO powder
Prof. Koji Arimitsu and Mr. Kouta Ooki (Tokyo University of Science) are acknowledged for their assistance with the thickness measurement. Dr. Kazuhiro Sayama (AIST) is greatly acknowledged for providing the AFM instrumentation.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 9.Nose Y, Yoshimura T, Ashida A, Uehara T, Fujimura N (2012) Low temperature growth of ZnO thin films by non-equilibrium atmospheric pressure N2/O2 plasma and the growth morphology of the films. Zairyo 61:756–759Google Scholar
- 12.Ohtaki N, Yoshino K (2003) Method for producing zinc acetylacetonate monohydrate. Japan Patent JP 2003-342222AGoogle Scholar
- 13.Hayami R, Tsukada S, Abe Y, Gunji T (2016) Synthesis and properties of b-diketonato metal complexes as catalysts for the synthesis of polyurethane. Mater Technol 34:11–17Google Scholar
- 16.Lide DR (2004) CRC handbook of chemistry and physics, 85th edn. CRC Press, Boca Raton, USAGoogle Scholar
- 22.Winiarski J, Tylus W, Winiarska K, Szczygieł I, Szczygieł B (2018) XPS and FT-IR characterization of selected synthetic corrosion products of zinc expected in neutral environment containing chloride ions. J Spectrosc 2018 2079278:14Google Scholar