Sol-Gel Processing of Zr(C,N,O) and Al(C,N,O) Powders

,-Diaminoparaxylene was reacted with Zr(OPrⁿ)₄ at a molar ratio r = 2 or with Al(OBu^s)₃ with a molar ratio r = 1.5 or 2. Characterization of the obtained hybrid organic–inorganic gels by FTIR, XRD, TGA, and ¹³C CP-MAS NMR showed that a substitution reaction occurred between the OPrⁿ or OBu^s groups of the alkoxides and the HN—CH₂—C₆H₄—CH₂—NH groups of the diamine. Powders derived from hybrid gels pyrolysis were also analyzed.