A single source precursor for low temperature processing of nanocrystalline MgAl2O4 spinel: synthesis and characterization of [MgAl2(μ3-O)(μ2-O(i)Pr)4(O(i)Pr)2]4.
A novel polynuclear single-source precursor was prepared and characterized by single-crystal X-ray diffraction and multinuclear NMR spectroscopy. Nano-crystalline MgAl(2)O(4) spinel was synthesized via sol-gel processing of [MgAl(2)(μ(3)-O)(μ(2)-O(i)Pr)(4)(O(i)Pr)(2)](4). XRD, TGA-DSC and HRTEM confirmed the formation of a spinel phase at 475 °C, a temperature lower than any known processing temperature for MgAl(2)O(4).
Department of Chemistry, Shahid Beheshti University, G.C., Tehran 1983963113, Iran.
Gholamhossein
G
Mohammadnezhad
Mostafa M
MM
Amini
Hamid Reza
HR
Khavasi