Synthesis of CuO@NiO core-shell nanoparticles by homogeneous precipitation method
2012; Elsevier BV; Volume: 537; Linguagem: Inglês
10.1016/j.jallcom.2012.05.086
ISSN1873-4669
Autores Tópico(s)ZnO doping and properties
ResumoCore-shell CuO–NiO mixed metal oxide nanoparticles in which CuO is the core and NiO is the shell have been successfully synthesized using homogeneous precipitation method. This is a simple synthetic method which produces first a layered double hydroxide precursor with core-shell morphology which on calcination at 350 °C yields the mixed metal oxide nanoparticles with the retention of core-shell morphology. The CuO–NiO mixed metal oxide precursor and the core-shell nanoparticles were characterized by powder X-ray diffraction, FT-IR spectroscopy, thermal gravimetric analysis, elemental analysis, scanning electron microscopy, transmission electron microscopy, and diffuse reflectance spectroscopy. The chemical reactivity of the core-shell nanoparticles was tested using catalytic reduction of 4-nitrophenol with NaBH4. The possible growth mechanism of the particles with core-shell morphology has also been investigated.
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