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Facile fabrication of porous ZnO by a template free method
Author(s) -
Shi Weiliang,
Si Limin,
Yue Linhai,
Wang Lina,
Jin Dalai
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201100150
Subject(s) - scanning electron microscope , porosity , annealing (glass) , materials science , chemical engineering , wurtzite crystal structure , fabrication , hydrothermal circulation , nanotechnology , zeolite , chemistry , zinc , composite material , metallurgy , organic chemistry , catalysis , medicine , alternative medicine , pathology , engineering
In this paper, a template free method has been employed to fabricate porous ZnO. Brick shaped precursor was first synthesized by a mild hydrothermal process. Accompanied with the decomposition of the precursor during the subsequent annealing treatment, porous ZnO with the inherited morphology of the precursor was obtained. The as‐prepared products were characterized by X‐ray diffraction (XRD) and scanning electron microscopy (SEM). It exhibited that the porous hierarchical frame consists of nano‐sheets with wurtzite‐type. The size of the pores as well as the size of the particles varied with the annealing temperature. Mechanism speculation showed that the crystal‐aggregation in the growth process of the precursor is the key to the establishment of pore structure. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)