The influence of process parameters on the chemical and structural properties of solution combustion prepared vanadium pentoxide

• Published in: Materials letters 2020-02, Vol.261, p.127095, Article 127095
• Main Authors: Yilmaz, Esma, Sonmez, M. Seref
• Format: Article
• Language: English
• Subjects: Chemical properties; Combustion; Combustion synthesis; Design of experiments; Flame temperature; Fuels; Materials science; Mix-fuel; Morphology; Organic chemistry; Powder technology, ceramic; Process parameters; Reaction kinetics; V2O5; Vanadium pentoxide
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2019.127095

•V2O5 powder was prepared by SCS using different type of fuels and mix fuel.•Effect of fuel-oxidizer ratio on the structure of V2O5 particles was investigated.•The finest V2O5 particles was synthesised by using mix fuel having Tad of 978 K with the release of 20.5 mol gas products.•Average particle size of V2O5 powders were measured as 158 nm. The present study shows the effects of the process parameters on the combustion synthesised’ powder properties using a systematic design of experiments. It describes the fabrication of high purity V2O5 powders with the manipulation of fuel types and fuel-to-oxidizer ratios. Additionally, for the first time the mixture of fuels was used to demonstrate clearly the role of the fuel on the powder properties. Flame temperature of the reaction was calculated for each parameter to understand how the reaction kinetics affect the powder properties especially primary particle size and morphology. Correlation between the physical and chemical properties of the powders and the precursor’s condition was successfully built.