ZnO mesocrystals from solvothermal synthesis
Abstract
Mesocrystals represent a new class of nanostructured materials, made of crystallographically aligned nanoparticles. Due to their unique structural features they have many physicochemical properties, different from nanoparticulate materials and single crystal materials, which can provide better performance in some applications. Zinc oxide mesocrystals have been synthesized by the solvothermal method at 200 °C during 4 hours from slightly basic (pH = 8) precursor (ethanolic zinc acetate solution in the presence of lithium hydroxide). XRD analysis showed that precursor solution consists of zinc acetate and zinc-hydroxy-acetate. Structural and microstructural properties were analyzed using X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy. ZnO mesocrystals are hexagonal prisms with diameters of 80 – 200 nm and lengths of 100 – 200 nm, but several larger prisms have a hole in the center. Based on characterization results we have discussed th...e growth mechanism of ZnO mesocrystals. Dipolar nature of ZnO and planar structure of zinc-hydroxy-acetate with free position of the acetate ions between positively charge planes play crucial role in the formation of the ZnO mesocrystals during the solvothermal reaction.
Keywords:
Zinc-oxide mesocrystals; Solvothermal synthesis; Growth mechanism; Zinc-hydroxy-acetateSource:
2nd Conference of the Serbian Ceramic Society, June 5-7, 2013, Belgrade, Serbia, 2CSCS-2013, 2013, 63-Publisher:
- Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia
Funding / projects:
- Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
Collections
Institution/Community
Institut za multidisciplinarna istraživanjaTY - CONF AU - Luković Golić, Danijela AU - Branković, Zorica AU - Daneu, Nina AU - Rečnik, Aleksander AU - Branković, Goran PY - 2013 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2486 AB - Mesocrystals represent a new class of nanostructured materials, made of crystallographically aligned nanoparticles. Due to their unique structural features they have many physicochemical properties, different from nanoparticulate materials and single crystal materials, which can provide better performance in some applications. Zinc oxide mesocrystals have been synthesized by the solvothermal method at 200 °C during 4 hours from slightly basic (pH = 8) precursor (ethanolic zinc acetate solution in the presence of lithium hydroxide). XRD analysis showed that precursor solution consists of zinc acetate and zinc-hydroxy-acetate. Structural and microstructural properties were analyzed using X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy. ZnO mesocrystals are hexagonal prisms with diameters of 80 – 200 nm and lengths of 100 – 200 nm, but several larger prisms have a hole in the center. Based on characterization results we have discussed the growth mechanism of ZnO mesocrystals. Dipolar nature of ZnO and planar structure of zinc-hydroxy-acetate with free position of the acetate ions between positively charge planes play crucial role in the formation of the ZnO mesocrystals during the solvothermal reaction. PB - Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia C3 - 2nd Conference of the Serbian Ceramic Society, June 5-7, 2013, Belgrade, Serbia, 2CSCS-2013 T1 - ZnO mesocrystals from solvothermal synthesis SP - 63 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2486 ER -
@conference{ author = "Luković Golić, Danijela and Branković, Zorica and Daneu, Nina and Rečnik, Aleksander and Branković, Goran", year = "2013", abstract = "Mesocrystals represent a new class of nanostructured materials, made of crystallographically aligned nanoparticles. Due to their unique structural features they have many physicochemical properties, different from nanoparticulate materials and single crystal materials, which can provide better performance in some applications. Zinc oxide mesocrystals have been synthesized by the solvothermal method at 200 °C during 4 hours from slightly basic (pH = 8) precursor (ethanolic zinc acetate solution in the presence of lithium hydroxide). XRD analysis showed that precursor solution consists of zinc acetate and zinc-hydroxy-acetate. Structural and microstructural properties were analyzed using X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy. ZnO mesocrystals are hexagonal prisms with diameters of 80 – 200 nm and lengths of 100 – 200 nm, but several larger prisms have a hole in the center. Based on characterization results we have discussed the growth mechanism of ZnO mesocrystals. Dipolar nature of ZnO and planar structure of zinc-hydroxy-acetate with free position of the acetate ions between positively charge planes play crucial role in the formation of the ZnO mesocrystals during the solvothermal reaction.", publisher = "Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia", journal = "2nd Conference of the Serbian Ceramic Society, June 5-7, 2013, Belgrade, Serbia, 2CSCS-2013", title = "ZnO mesocrystals from solvothermal synthesis", pages = "63", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2486" }
Luković Golić, D., Branković, Z., Daneu, N., Rečnik, A.,& Branković, G.. (2013). ZnO mesocrystals from solvothermal synthesis. in 2nd Conference of the Serbian Ceramic Society, June 5-7, 2013, Belgrade, Serbia, 2CSCS-2013 Institut za multidisciplinarna istraživanja, Kneza Višeslava 1, 11000 Belgrade, Serbia., 63. https://hdl.handle.net/21.15107/rcub_rimsi_2486
Luković Golić D, Branković Z, Daneu N, Rečnik A, Branković G. ZnO mesocrystals from solvothermal synthesis. in 2nd Conference of the Serbian Ceramic Society, June 5-7, 2013, Belgrade, Serbia, 2CSCS-2013. 2013;:63. https://hdl.handle.net/21.15107/rcub_rimsi_2486 .
Luković Golić, Danijela, Branković, Zorica, Daneu, Nina, Rečnik, Aleksander, Branković, Goran, "ZnO mesocrystals from solvothermal synthesis" in 2nd Conference of the Serbian Ceramic Society, June 5-7, 2013, Belgrade, Serbia, 2CSCS-2013 (2013):63, https://hdl.handle.net/21.15107/rcub_rimsi_2486 .