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Direct Thermal Decomposition of Metal Nitrates in Octadecylamine to Metal Oxide Nanocrystals
Author(s) -
Wang DingSheng,
Xie Ting,
Peng Qing,
Zhang ShaoYan,
Chen Jun,
Li YaDong
Publication year - 2008
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200701668
Subject(s) - materials science , calcination , nanocrystal , nanorod , thermal decomposition , oxide , metal , chemical engineering , crystallization , mesoporous material , inorganic chemistry , nanoparticle , non blocking i/o , metal ions in aqueous solution , catalysis , nanotechnology , chemistry , metallurgy , organic chemistry , engineering
We have developed a method for the synthesis of metal oxide nanocrystals with controllable shape and size, which is based on the direct thermal decomposition of metal nitrates in octadecylamine. Mn 3 O 4 nanoparticles and nanorods with different lengths were synthesized by using manganese nitrate as the decomposition material. Other metal oxide nanocrystals such as NiO, ZnO, CeO 2 , CoO, and Co 3 O 4 were also prepared by this method. These nanocrystals were then assembled into 3D colloidal spheres by a surfactant‐assisted self‐assembly process. Subsequently, calcination was carried out to remove the surfactants to obtain mesoporous metal oxides, which show large pores, good crystallization, thermally stable pore mesostructures, and potential applications in various fields, especially in catalysis and lithium‐ion batteries.
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