Title :
The synthesis of flower-like layered double hydroxides nanocrystals and their calcined products
Author_Institution :
Xiangfan Univ., Xiangfan, China
Abstract :
This paper describes a facile solvothermal method to synthesize self-assembled three-dimensional (3D) Ni2+-Fe3+ layered double hydroxides (LDHs) nanocrystals. Flower-like Ni2+-Fe3+ LDHs constructed of thin nanopetals were obtained using ethylene glycol (EG) as a chelating reagent and urea as a hydrolysis agent. The reaction mechanism and self-assembly process are discussed. After calcinating the as-prepared LDHs at 450 °C in nitrogen gas, porous NiO/NiFe2O4 nanosheets were obtained. This work resulted in the development of a simple, cheap, and effective route for the fabrication of large area Ni2+-Fe3+ LDHs as well as porous NiO/NiFe2O4 nanosheets.
Keywords :
calcination; iron compounds; nanofabrication; nanostructured materials; nickel compounds; porous materials; self-assembly; NiO-NiFe2O4; calcination; chelating reagent; ethylene glycol; flower-like layered double hydroxides nanocrystals; hydrolysis agent; porous nanosheets; self-assembled three-dimensional nanocrystals; solvothermal method; temperature 450 degC; thin nanopetals; urea; Ions; Materials; Thermal analysis; flower-like; nanocrystals; synthesis;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930900
