Metal-Free N-Doped Carbons for Solvent-Less CO₂ Fixation Reactions: A Shrimp Shell Valorization Opportunity.

ABSTRACT: High anthropogenic CO₂ emissions are among the main causes of climate change. Herein, we investigate the use of CO₂ for the synthesis of organic cyclic carbonates on metal-free nitrogen-doped carbon catalysts obtained from chitosan, chitin, and shrimp shell wastes, both in batch and in continuous flow (CF). The catalysts were characterized by N₂ physisorption, CO₂-temperature-programmed desorption, X-ray photoelectron spectroscopy, scanning electron microscopy, and CNHS elemental analysis, and all reactivity tests were run in the absence of solvents. Under batch conditions, the catalyst obtained by calcination of chitin exhibited excellent performance in the conversion of epichlorohydrin (selected as a model epoxide), resulting in the correspondi

SUBMITTER: Polidoro D 

PROVIDER: S-EPMC9942530 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature