CO2??Fixation on Aliphatic α, ω??Diamines to Form Cyclic Ureas, Catalyzed by Ceria Nanoparticles that were Obtained by Templating with Alginate

A Primo, E Aguado, H Garcia

Index: Primo, Ana; Aguado, Eric; Garcia, Hermenegildo ChemCatChem, 2013 , vol. 5, # 4 p. 1020 - 1023

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Citation Number: 5

Abstract

Abstract Ceria nanoparticles (average particle size: 8 nm) have been obtained by the calcination of alginate aerogel beads that were precipitated from aqueous solutions of (NH 4) 2 Ce (NO 3) 6. These nanoparticles were considerably more active as a catalyst for CO 2- insertion into aliphatic α, ω-diamines than the analogous commercial CeO 2 with larger particle size (40 nm). CeO 2 that was obtained by templating with the natural alginate ...