Open AccessHydrothermal synthesis and characterization of monodisperse α‐Fe 2 O 3 nanocubes
Author(s) -
Liu Jing,
Wang Jie,
Sun Jincheng,
Li Yaru,
Lu Feng
Publication year - 2014
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2014.0212
Subject(s) - hydrothermal circulation , dispersity , transmission electron microscopy , hydrothermal synthesis , scanning electron microscope , materials science , reagent , aqueous solution , characterization (materials science) , chemical engineering , alkali metal , crystallography , nanotechnology , inorganic chemistry , chemistry , organic chemistry , polymer chemistry , engineering , composite material
Monodisperse α‐Fe 2 O 3 nanocubes with a mean size of 85 nm have been prepared by heating an aqueous solution of iron (III) nitrate in the presence of a certain amount of alkali without any additional organic reagents or templates in a hydrothermal route. The structure and morphology of the products were characterised by X‐ray diffraction, transmission electron microscopy and eld‐emission scanning electron microscopy. The results have shown that the crystal morphology continually changes at higher temperatures and α‐FeOOH was generated as the intermediate during the hydrothermal dehydration reaction. In addition, the optimum temperature and reaction time of the hydrothermal synthesis of these α‐Fe 2 O 3 nanocubes were 200°C and 5 h, respectively.