Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 10, Issue 50, Pages 16527-16537Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.2c03355
Keywords
alcohols; oxidative cleavage; lignin; heterogeneous iron; molecular oxygen
Categories
Funding
- State Key Laboratory of Catalysis in DICP
- Doctoral Scientific Research Project of Liaoning Normal University
- [N-20-11]
- [2021BSL006]
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A heterogeneous iron-based catalyst has been developed for the conversion of alcohols to esters, and it also shows effectiveness in the degradation of organosolv lignin. The catalyst exhibits good recyclability and can be easily reused multiple times without significant loss of catalytic activity.
A heterogeneous iron-based catalyst for the aerobic oxidative cleavage of C-C bonds in alcohols to access esters was developed. Various alcohols including inactive long-chain alkyl aryl alcohols as well as beta-O-4 lignin model compounds can be smoothly converted to the corresponding esters with molecular oxygen as the oxidant. Moreover, the present catalyst system can successfully degrade organosolv lignin. Base additives are not required except for inactive long-chain alkyl aryl alcohols. The catalyst exhibits good recyclability and can be easily recycled and reused up to seven times without a significant loss of catalytic activity. Characterization and control experiments confirmed that iron nanoparticles are mainly responsible for this reaction. Preliminary mechanism studies indicate that a sequential oxidation process exists in the reaction pathway.
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