Influence of Various Parameters on the SCS Ni/NiO Nanostructures and their Mechanism of Formation

  • O. Thoda Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, AgiaParaskeviAttikis, 15310, Greece; Faculty of Engineering, Environment and Computing, Coventry University, Priory Street, CV1 5FB, Coventry, UK
  • G. Xanthopoulou Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, AgiaParaskeviAttikis, 15310, Greece; Samara State Aerospace University, Moskovskoye Hwy, 34, Samara, 443086, Russia
  • G. Vekinis Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, AgiaParaskeviAttikis, 15310, Greece
  • A. Chroneos Faculty of Engineering, Environment and Computing, Coventry University, Priory Street, CV1 5FB, Coventry, UK

Abstract

Solution combustion synthesis (SCS) is an efficient approach to deliver materials with desirable properties directly in the nanoscale. Nevertheless, it is a very sensitive method and there are many parameters that influence the final materials’ properties and microstructure. In this work, four parameters that severely affect the combustion mechanism of formation for the final products, and as a result their final properties, are studied. These are the concentration of nitrates, the concentration of fuel in direct and slow heating and the time in furnace after the SCS is completed. It has been concluded that all these parameters affect the SCS process in a complicated way and an attempt has been made to explain the underlying mechanisms and processes that shape the final nanostructures. Finally, some of the as-synthesized Ni/NiO nanopowders were employed as catalysts and their activity was tested in the liquid-phase hydrogenation of maleic acid.

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Published
2019-10-22
How to Cite
[1]
O. Thoda, G. Xanthopoulou, G. Vekinis, and A. Chroneos, “Influence of Various Parameters on the SCS Ni/NiO Nanostructures and their Mechanism of Formation”, Eurasian Chem. Tech. J., vol. 21, no. 3, pp. 215-226, Oct. 2019.
Section
Articles