Zn supported on composite materials as catalysts for fine chemical applications

IF 3.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Molecular Catalysis Pub Date : 2025-03-13 DOI:10.1016/j.mcat.2025.115012

Luis Fernando Valencia , Isabel Agudelo , Juan Badano , Mónica Quiroga , Carolina Betti , Cecilia Lederhos , Aída Luz Villa

{"title":"Zn supported on composite materials as catalysts for fine chemical applications","authors":"Luis Fernando Valencia , Isabel Agudelo , Juan Badano , Mónica Quiroga , Carolina Betti , Cecilia Lederhos , Aída Luz Villa","doi":"10.1016/j.mcat.2025.115012","DOIUrl":null,"url":null,"abstract":"<div><div>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 CaCO<sub>3</sub> 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 NH<sub>3</sub>-TPD, CO<sub>2</sub>-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 CO<sub>2</sub>-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.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"578 ","pages":"Article 115012"},"PeriodicalIF":3.9000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular Catalysis","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2468823125001981","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

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.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Molecular Catalysis Chemical Engineering-Process Chemistry and Technology

CiteScore

6.90

自引率

10.90%

发文量

700

审稿时长

40 days

期刊介绍： Molecular Catalysis publishes full papers that are original, rigorous, and scholarly contributions examining the molecular and atomic aspects of catalytic activation and reaction mechanisms. The fields covered are: Heterogeneous catalysis including immobilized molecular catalysts Homogeneous catalysis including organocatalysis, organometallic catalysis and biocatalysis Photo- and electrochemistry Theoretical aspects of catalysis analyzed by computational methods