期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 44, 期 2, 页码 216-222出版社
ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2008.04.008
关键词
beta-Ni(OH)2; NiO; nanosheet networks; solution process; thermogravimetric studies
Flower-shaped beta-Ni(OH)(2) structures composed of thin nanosheet networks have been synthesized via the simple aqueous solution route by using nickel chloride and ammonium hydroxide at 65 degrees C in 4 h. The general morphological observations revealed that the flowers are composed of thin nanosheets which were connected to each other in such a manner that they form network-like morphologies. Moreover, single-crystalline flower-shaped NiO structures composed of thin nanosheets were also obtained by thermal decomposition of flower-shaped beta-Ni(OH)(2) structures. The shape of nanosheet networks in beta-Ni(OH)(2) was sustained after thermal decomposition to NiO however, some broken nanosheets were also observed from the flower-shaped structures of NiO. The as-prepared products were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), high-resolution TEM (HRTEM), Fourier transform infrared spectroscopy (FTIR), and Thermogravimetric analysis (TGA). (C) 2008 Elsevier Ltd. All rights reserved.
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