The low-temperature glycine-nitrate combustion method was employed to synthesize nanopowders based on nonstoichiometric magnesium-aluminum spinel MgAl2+δO4+1.5δ with the degree of nonstoichiometry δ = 0.76–9.48, whose average crystallite size decreases from 16 to 6 nm as spinel is enriched with alumina. Analysis of the nanopowders suggests that they have a complex structure composed of nonstoichiometric spinel crystallites and an amorphous alumina part. The powders synthesized hold promise as catalyst supports, sorbents, and functional materials with high surface areas.
Russian Journal of Applied Chemistry – Springer Journals
Published: Oct 24, 2013
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