期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 356, 期 25-27, 页码 1337-1343出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2010.03.002
关键词
A120 Aerogels; M345 Morphology; O180 Oxides; S290 Sol-gel method
资金
- American Chemical Society [46656-G5]
In this report we demonstrate the synthesis of monolithic mixed copper(II)-nickel(II) (Cu-Ni) oxide aerogels using the epoxide addition method. This single step synthetic method provides a straightforward route to synthesize highly porous CuO-NiO materials composed of nanometer sized particles. Control of the particle size and gel morphology is achieved by simple changes in the initial synthetic conditions. The as-synthesized Cu-Ni aerogels were identified as being highly amorphous with the crystalline species identified as a copper/nickel chloride hydroxide. Calcination of the aerogel materials at relatively low temperatures resulted in a complete phase transition of the material to give the CuO-NiO aerogel. The aerogels were characterized by high resolution scanning electron microscopy (HR-SEM), transmission electron microscopy (TEM), powder X-ray diffraction (XRD) and nitrogen adsorption/desorption techniques (BET). The as-synthesized Cu-Ni aerogels are highly porous and exhibited high surface areas (similar to 400 m(2)/g). (C) 2010 Elsevier B.V. All rights reserved.
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