Role of fuel and fuel-to-oxidizer ratio in combustion synthesis of nano-crystalline nickel oxide powders

Nanocrystalline nickel oxide (NiO) powders are synthesized using combustion technique, with nickel nitrate hexahydrate as the oxidizer, and glycine and urea as fuels. Effect of fuel-to-oxidizer (F/O) ratio on the powder characteristics such as the shape, particle size, agglomeration, crystallite siz...

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Bibliographic Details
Published in:Ceramics international 2015-12, Vol.41 (10), p.14949-14957
Main Authors: Hadke, Shreyash, Kalimila, Madhu Telugu, Rathkanthiwar, Shashwat, Gour, Shivani, Sonkusare, Reshma, Ballal, Atul
Format: Article
Language:English
Subjects:
A. Powders: chemical preparation
B. Electron microscopy
B. X-ray methods
D. Transition metal oxides
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Summary:Nanocrystalline nickel oxide (NiO) powders are synthesized using combustion technique, with nickel nitrate hexahydrate as the oxidizer, and glycine and urea as fuels. Effect of fuel-to-oxidizer (F/O) ratio on the powder characteristics such as the shape, particle size, agglomeration, crystallite size, composition, residual carbon content, and sinterability is studied. It is found that, powder characteristics are a strong function of the type of fuel, and the F/O ratio. Compared to powders synthesized using glycine as the fuel, powders synthesized using area had a more spherical shape, smaller and harder agglomerates, smaller crystallite size, less content of metallic Ni, higher residual carbon content, and higher sinterability.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2015.08.037