Nonimmobilized and immobilized Mg–Al hydrotalcite-like materials on
silica lyogels were prepared and activated by calcination to be tested as
catalysts in the direct carboxylation reaction of methanol. The HTs
supportedon silica lyogels showedan important improvement andhigh
stability in the direct synthesis reaction of DMC from CO2 and MeOH.
Stoian, D.C. [et al.]. Boosted CO2 reaction with methanol to yield dimethyl carbonate over Mg–Al hydrotalcite-silica lyogels. "Chemical communications", 13 Maig 2013, núm. 49, p. 5489-5491.