Zn supported on composite materials as catalysts for fine chemical applications

In this work, zinc supported composite catalysts were evaluated in the isomerization of β-pinene epoxide, limonene oxidation, and one pot synthesis of campholenic aldehyde from α-pinene. The composites materials were synthesized using CaCO3 and a mixture of aluminium and magnesium sources as the inorganic phases and the bisphenol A glycerolate dimethacrylate / triethylene glycol dimethacrylate polymerized mixture as the polymeric organic phases. The materials were characterized by NH3-TPD, CO2-TPD, XRD, Py-FTIR, XPS, ICP, TEM and SEM-EDX. Mainly Lewis acid sites were identified by Py-FTIR analysis of BTAlMg and Zn-BTAlMg. The basicity of BTCa and Zn-BTCa materials was identified by CO2-TPD. Over Zn-BTCa, α-pinene conversion of 73 % and campholenic aldehyde selectivity of 90 % were obtained. The oxidation of limonene over Zn-BTCa yielded a conversion of 36 % with a selectivity of 92 % and 8 % towards 1,2-limonene epoxide and 8,9-limonene epoxide, respectively. The isomerization of β-pinene epoxide over Zn-BTAlMg with dimethyl carbonate, gave 89 % β-pinene epoxide conversion and 100 % selectivity to myrtanal. The synthesized catalysts did not show leaching under tested catalytic reactions. After four reuses, the product selectivity did not significantly changed and the conversion decreased 7 % and 11 % in the oxidation of α-pinene and isomerization of β-pinene epoxide, respectively.

• Autores: Valencia Cardona, Luis Fernando; Agudelo, Isabel; Badano, Juan Manuel; Quiroga, Mónica; Betti, Carolina; Lederhos, Cecilia; Villa Holguín, Aída Luz
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2025
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/45752
• Acceso en línea: https://hdl.handle.net/10495/45752
• Palabra clave: Composite materials; Material compuesto; Terpenes; Terpeno; Campholenic aldehyde; Myrtanal; http://aims.fao.org/aos/agrovoc/c_523aa818; http://aims.fao.org/aos/agrovoc/c_637aa49e; ODS 12: Producción y consumo responsables. Garantizar modalidades de consumo y producción sostenibles
• Rights: openAccess
• License: http://creativecommons.org/licenses/by/4.0/