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Study of crystallite size and strain as a function of morphological evolution in zinc oxide powder obtained from hydroxycarbonate precursor

Published online by Cambridge University Press:  05 March 2012

Fernando Aparecido Sigoli ,
Carlos de Oliveira Paiva-Santos ,
Miguel Jafelicci Jr.  and
Marian Rosaly Davolos
Fernando Aparecido Sigoli
Affiliation:
Instituto de Química, Universidade Estadual Paulista-UNESP, P.O. Box 355, 14801-970, Araraquara, SP, Brazil
Carlos de Oliveira Paiva-Santos
Affiliation:
Instituto de Química, Universidade Estadual Paulista-UNESP, P.O. Box 355, 14801-970, Araraquara, SP, Brazil
Miguel Jafelicci Jr.
Affiliation:
Instituto de Química, Universidade Estadual Paulista-UNESP, P.O. Box 355, 14801-970, Araraquara, SP, Brazil
Marian Rosaly Davolos*
Affiliation:
Instituto de Química, Universidade Estadual Paulista-UNESP, P.O. Box 355, 14801-970, Araraquara, SP, Brazil
*
a)Electronic mail: [email protected]
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Abstract

In this work, zinc oxide samples were obtained from hydroxycarbonate by thermal decomposition at 300 °C. Zinc hydroxycarbonate samples were produced by homogeneous precipitation over different periods of time. The method used to obtain zinc oxide produces different morphologies as a function of the precursor precipitation time. Among the obtained particle shapes were porous spherical aggregates, spherulitic needle aggregates, and single acicular particles. This work investigated spherulitic needle-aggregate formation and the correlation among morphology, domain size, and microstrain. Transmission electron microscopy data revealed that the acicular particles that form the spherulitic needle aggregates consist of nanometer crystallites. Apparent crystallite size and microstrain in the directions perpendicular to (h00), (h0l), (hk0), and (00l) planes were invariable as a function of precursor precipitation time. From the results, it was possible to conclude that the precursor precipitation period directly influenced the morphology of the zinc oxide but did not influence average crystallite size and microstrain for ZnO samples. Therefore, using this route, it was possible to prepare zinc oxide with different morphologies without microstructural alterations.

Keywords

zinc oxidecrystallite sizestrainmorphology
Type
Technical Articles
Information
Powder Diffraction , Volume 16 , Issue 3 , September 2001 , pp. 153 - 159
Copyright
Copyright © Cambridge University Press 2001

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References

Auffre´dic, J. P., Boultif, A., Langford, J. I., and Loue¨r, D. (1995). “Early stages of crystallite growth of ZnO obtained from an oxalate precursor,” J. Am. Ceram. Soc. JACTAW 78, 323–328. jac, JACTAW CrossRefGoogle Scholar
Blasse, G., and Grabmaier, B. C. (1994). Luminescent Materials (Springer, Berlin), pp. 60–64.Google Scholar
Bolis, V., Fubini, B., Giamello, E., and Reller, A. (1989). “Effect of form on the surface reactivity of differently prepared zinc-oxides,” J. Chem. Soc., Faraday Trans. 1 JCFTAR 85, 855. jfy, JCFTAR CrossRefGoogle Scholar
Castellano, M. A., and Matije´vic, E. (1989). “Uniform colloidal zinc compounds of various morphologies,” Chem. Mater. CMATEX 1, 78–82. cma, CMATEX Google Scholar
Collins, I. R., and Taylor, E. S. (1992). “Nonaqueous thermal-decomposition route to colloidal inorganic oxides,” J. Mater. Chem. JMACEP 2, 1277–1281. jtc, JMACEP CrossRefGoogle Scholar
Georgobiani, A. N., Butkhuzi, T. V., Zadauly, E., Kekelidze, N. P., and Khulordava, T. G. (1993). “Optical-properties of zinc oxide dielectric layers,” Inorg. Mater. (Transl. of Neorg. Mater.) INOMAF 29, 1249–1252. inm, INOMAF Google Scholar
Ghose, S. (1964). “The crystal structure of hydrozincite, Zn5(OH)6 (CO3)2,” Acta Crystallogr. ACCRA9 17, 1051–1057. acc, ACCRA9 Google Scholar
Haruta, M., and Delmon, B. (1986). “Preparation of homodisperse solids,” J. Chim. Phys. Phys.-Chim. Biol. JCPBAN 83, 859–868. jbl, JCPBAN Google Scholar
Koudelka, L., and Hora´k, J. (1994). “Morphology of polycrystalline ZnO and its physical-properties,” J. Mater. Sci. JMTSAS 29, 1497–1500. jmt, JMTSAS Google Scholar
Langford, J. I. (1992). “The use of the Voigt function in determining microstructural properties from diffraction data by means of pattern decomposition,” in Accuracy in Powder Diffraction II, edited by Prince, E. and Stalik, J. K. (NIST Special Publication No. 846, Gaithersburg), pp. 110–126.Google Scholar
Langford, J. I., Boultif, A., Auffre´dic, J. P., and Loue¨r, D. (1993). “The use of pattern decomposition to study the combined X-ray diffraction effects of crystallite size and stacking faults in ex-oxalate zinc oxide,” J. Appl. Crystallogr. JACGAR 26, 22–33. acr, JACGAR CrossRefGoogle Scholar
Langford, J. I., Delhez, R., Keijser, Th. H., and Mittemeijer, E. J. (1988). “Profile analysis for microcrystalline properties by the Fourrier and other methods,” Aust. J. Phys. AUJPAS 41, 173–187. auj, AUJPAS Google Scholar
Loue¨r, D., Auffre´dic, J. P., Langford, J. I., Ciosmak, D., and Niepce, J. C. (1983). “A precise determination of the shape, size and distribution of crystallites in zinc oxide by X-ray line-broadening analysis,” J. Appl. Crystallogr. JACGAR 16, 183–191. acr, JACGAR Google Scholar
Matije´vic, E. (1985). “Production of monodispersed colloidal particles,” Annu. Rev. Mater. Sci. ARMSCX 15, 483–516. arm, ARMSCX Google Scholar
Matyi, R. J., Schwartz, L. H., and Butt, J. B. (1987). “Particle size, particle size distribution and related measurements of supported metal catalysts,” Catal. Rev. Sci. Eng. CRSEC9 29, 41–99. ctr, CRSEC9 CrossRefGoogle Scholar
Sigoli, F. A., Davolos, M. R., and Jafelicci, M. Jr. (1997). “Morphological evolution of zinc oxide originating from zinc hydroxide carbonate,” J. Alloys Compd. JALCEU 262–263, 292–295. jal, JALCEU Google Scholar
Sigoli, F. A., Davolos, M. R., and Jafelicci, M. Jr., (1999). “Morphological control and luminescence properties of zinc oxide,” Adv. Sci. Technol. (Faenza, Italy) ASETE5 27, 45–52. ase, ASETE5Google Scholar
Toraya, H. (1990). “Operating manuals for computer programs: PRO-FIT and WPPF.”Google Scholar
Vanheusden, K., Seager, C. H., Warren, W. L., Tallant, D. R., Caruso, J., Hampden-Smith, M. J., and Kodas, T. J. (1997). “Green photoluminescence efficiency and free-carrier density in ZnO phosphor powders prepared by spray pyrolysis,” J. Lumin. JLUMA8 75, 11–16. jlu, JLUMA8 CrossRefGoogle Scholar
Zampronio, C. G., Davolos, M. R., Stucchi, E. B., and Jaffelicci, M. Jr. (1995). “Spherical particles of pure and manganese doped zinc oxide and zinc hydroxicarbonate,” Mater. Res. Soc. Symp. Proc. MRSPDH 372, 69–74. mrs, MRSPDH CrossRefGoogle Scholar