Reconstruction of calcined MgAl- and NiMgAl-layered double hydroxides during glycerol dehydration and their recycling characteristics
Source abstract
Abstract
Abstract MgAl- and NiMgAl-layered double hydroxides (LDHs) were prepared by the co-precipitation method. On calcination MgAl and NiMgAl mixed oxides were formed. Crystalline MgO and NiO could be identified, while aluminium ions were well-dispersed on these oxides. The mixed oxides were effective in the transformation of glycerol to currently more valuable products like acetol (hydroxyacetone) and acrolein. Acetol was found to be the main product and some part was further dehydrated to acrolein. During the reaction, full reconstruction of the LDH structure occurred. The used catalysts could be reactivated by repeated calcination.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Supercapacitor Materials and Fabrication · Mesoporous Materials and Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
Show source-provided references
1. Applications of hydrotalcite-type anionic clays (layered double hydroxides) in catalysis
2. Synthesis of layered double hydroxides and their reactivities in 1-butene isomerisation after calcination10.1007/BF02067991 ↗
3. Conversion of glycerol to propanediol and acrolein by heterogeneous catalysis
4. Synthesis of methylpseudoionones by activated hydrotalcites as solid base catalysts10.1039/b205532p ↗
5. Low-pressure hydrogenolysis of glycerol to propylene glycol10.1016/j.apcata.2004.11.033 ↗
6. New route to layered double hydroxides intercalated by organic anions: precursors to polyoxometalate-pillared derivatives10.1021/ic00338a001 ↗
7. Structural aspects of layered double hydroxides
8. Idrotalcite e piroaurite
9. Pd nanoparticles in hydrotalcite: mild and highly selective catalysts for alkyne semihydrogenation10.1016/S0021-9517(03)00269-0 ↗
10. Physico-chemical properties of synthetic hydrotalcites in relation to com-position10.1346/CCMN.1980.0280107 ↗
11. Denitrification of natural water on supported Pd/Cu catalysts10.1016/S0926-3373(02)00203-5 ↗
12. Synthesis of disordered and Al-rich hydrotalcite-like compounds10.1346/CCMN.1986.0340502 ↗
13. Base-catalyzed condensation of citral and acetone at low temperature using modified hydrotalcite catalysts10.1016/S0920-5861(00)00346-1 ↗
14. X-ray determination of electron-density distribution in oxides, MgO, MnO, CoO and NiO, and atomic scattering factors of their constituent atoms10.2183/pjab.55.43 ↗
15. Biodiesel synthesis using calcined layered double hydroxide catalysts10.1016/j.apcatb.2008.01.010 ↗
16. Textural properties and catalytic activity of hydrotalcites10.1006/jcat.1995.1007 ↗
17. Preparation and catalytic properties of cationic and anionic clays10.1016/S0920-5861(98)00038-8 ↗
18. Catalytic applications of layered double hydroxides and derivatives10.1016/j.clay.2011.02.007 ↗