Abstract
Thermocatalytic degradation of lignin monomer coniferyl aldehyde by aluminum–boron oxide catalysts
Highlights
Previous research [1] has revealed that alumina– boria catalysts could be employed in catalyzing reactions, like methanol dehydration
We propose a catalytic material composed of synthetic aluminum–boron oxide, synthesized by a sol–gel route
Two catalysts were synthesized from a mixture of aluminum oxide and boron oxide by a sol–gel method at both pH 3 and 4
Summary
Previous research [1] has revealed that alumina– boria catalysts could be employed in catalyzing reactions, like methanol dehydration. Xiu et al [2] employed a bimodal mesoporous boria–alumina composite for the dehydration of methyl alcohol to obtain methoxymethane, with a yield of 85%. Total conversion of cyclohexanone oxime was achieved, even with a small quantity of acid sites. Alumina belongs to a group of catalysts characterized by moderate acidity. Other than hydroxyl groups (none of them behaving as Bronsted acids), the remaining centers are associated with Lewis acidity. Modification of alumina with boron oxide generates Bronsted acid centers on the catalyst surface. Because boron has greater electronegativity than aluminum, borinic acid has a tougher acid force than aluminum hydroxide, contributing to organic bond cracking [4]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
