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Enhanced the Catalytic Performance of CeO.sub.2 by Tuning V.sup.5+ Doping Amount in Carbonylation of n-Butyl Amine with CO.sub.2
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Enhanced the Catalytic Performance of CeO.sub.2 by Tuning V.sup.5+ Doping Amount in Carbonylation of n-Butyl Amine with CO.sub.2
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Enhanced the Catalytic Performance of CeO.sub.2 by Tuning V.sup.5+ Doping Amount in Carbonylation of n-Butyl Amine with CO.sub.2
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Journal Article
Enhanced the Catalytic Performance of CeO.sub.2 by Tuning V.sup.5+ Doping Amount in Carbonylation of n-Butyl Amine with CO.sub.2
2024
Overview
CO.sub.2 regeneration and reutilization is considered to be a green and effective route with highly potential for development. CeO.sub.2 showed high catalytic activity for the production of N,N'-dibutylurea through n-butyl amine and CO.sub.2. Herein, V-doped CeO.sub.2 with different molar ratios of V/Ce (V.sub.x%-CeO.sub.2, x = 0, 0.4, 0.6, 0.8 and 1.0) were further successfully synthesized and firstly applied to the reaction of CO.sub.2 with n-butyl amine. The reaction results displayed the catalytic performance of CeO.sub.2 were prominently enhanced by doping V.sup.5+ and followed an order of V.sub.0.8%-CeO.sub.2 > V.sub.0.6%-CeO.sub.2 > V.sub.1.0%-CeO.sub.2 > V.sub.0.4%-CeO.sub.2 > CeO.sub.2. The reason for the changes in the catalytic activities of CeO.sub.2 with different doping amounts of V.sup.5+ could be closely related to the surface oxygen vacancy and surface weak acidity and weak basicity based on specific analysis of relevant characterization including XRD, BET, Raman, XPS, EPR and NH.sub.3/CO.sub.2-TPD.
Publisher
Springer
Subject
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