期刊
MATERIALS LETTERS
卷 62, 期 17-18, 页码 2787-2790出版社
ELSEVIER
DOI: 10.1016/j.matlet.2008.01.046
关键词
cupric oxide; microwave heating; ionic liquid; crystal structure; semiconductor
Cupric oxide (CuO) with leaf-like, chrysanthemum-like and rod shapes have been synthesized by microwave-assisted approach using an ionic liquid 1-n-butyl-3-methyl imidazolium tetrafluoroborate ([BMIM]BF4). By controlling the concentration of [BMIM]BF4 and reaction time, shape transformation of CuO nanostructures could be achieved in a short period of time., The crystal structure and morphology of products were characterized by XRD, TG, FESEWEDS, and TEM/SAED. A possible mechanism for the shape transformation of CuO nanostructures was proposed. In addition, UV-vis spectra were employed to estimate the band gap energies of the nanosized semiconductors. (C) 2008 Elsevier B.V. All rights reserved.
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