Journal Article

Effect of the synthesis method and calcination temperature on the formation of Ni–NiO nanocomposites

Soares, J. M., Bohn, F., Pinto, R. A., Franco, A., da Silva, R. B., da Costa, J. A. P., Correa, M. A.

2019

Overview

We investigate the structural, morphological, chemical, and magnetic properties of Ni–NiO nanocomposites synthesized through two distinct routes, sol–gel and coprecipitation, followed by calcination. By considering several techniques we show that the resulting nanocomposites, as well as their properties, are strongly dependent on both, synthesis method and calcination temperature. Hence, we explore the possibility of tailoring the physical properties of the nanocomposite by modifying production parameters. The results place the employed routes as a simple, low-cost candidate to the production of Ni–NiO nanocomposites, especially nickel oxide. Nanoparticles of Nio/Ni produced by sol-gel route. Highlights Sol-gel and co-precipitaion routes to produce Ni-NiO and NiO nanopowders. Structural, morphological and magnetic properties of Ni-NiO and NiO nanopowders. Tailoring nanocomposites' properties via synthesis and calcination temperature.

• Publisher: Springer US,Springer Nature B.V
• Subject: Ceramics / Chemistry and Materials Science / colloids / Composites / etc. / fibers / Glass / Inorganic Chemistry / Magnetic properties / Materials Science / Nanocomposites / Nanotechnology / Natural Materials / Nickel oxides / Optical and Electronic Materials / Organic chemistry / Original Paper: Nano-structured materials (particles / Parameter modification / Physical properties / Roasting / Sol-gel processes