Solution-Combustion Synthesis of 4CuO/Al2O3 Composite from Starting Solutions Containing Copper Acetate as Ballast

Autor:	Ksenia V. Nefedova, Sh. M. Khaliullin, L. V. Ermakova, Elena A. Sherstobitova, V. D. Zhuravlev
Rok vydání:	2021
Předmět:	Materials science Nanocomposite Aqueous solution Annealing (metallurgy) Process Chemistry and Technology Composite number Spinel chemistry.chemical_element engineering.material Copper Amorphous solid chemistry Yield (chemistry) engineering General Materials Science Nuclear chemistry
Zdroj:	International Journal of Self-Propagating High-Temperature Synthesis. 30:132-138
ISSN:	1934-788X 1061-3862
DOI:	10.3103/s1061386221030110
Popis:	The effect of copper acetate addition to an aqueous solution of aluminum nitrate and glycine on the solution-combustion synthesis (SCS) of 4CuO/Al2O3 nanocomposites was investigated by XRD, SEM, and DTA methods. The presence of copper acetate in starting solution favored the complete conversion of NO2 to N2 at off-stoichiometric glycine contents (φ < 1). The replacement of copper nitrate with copper acetate was found to give a 2-fold decrease in combustion temperature, which markedly raised the yield of target fine powder. Synthesized composites represented a mixture of amorphous γ-Al2O3 and crystalline CuO, Cu2O, and Cu. Upon annealing at 800–850°C, the formation of CuAl2O4 spinel was observed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f10ccf98503445c8d6f16d20837dd54d https://doi.org/10.3103/s1061386221030110 Zobrazit plný text záznamu Full text from SpringerLink