A novel Cu-based catalyst supported in chitosan nanoparticles for the hydrogenation of carbon dioxide to methanol: From the optimization of the catalyst performance to the reaction mechanism

Autor:	Seyed Alireza Vali, Ahmad Abo Markeb, Javier Moral-Vico, Xavier Font, Antoni Sánchez
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	CO2 hydrogenation Thermal catalysis Cu/ZnO/Al2O3 Chitosan Methanol Catalytic reactor Chemistry QD1-999
Zdroj:	Catalysis Communications, Vol 182, Iss , Pp 106747- (2023)
Druh dokumentu:	article
ISSN:	1873-3905
DOI:	10.1016/j.catcom.2023.106747
Popis:	Chitosan nanoparticles were used as a support for the Cu-based catalyst to convert carbon dioxide to methanol under mild conditions. A statistically significant model for space-time yield (STY) and selectivity as a function of synthesis-related parameters was achieved, predicting optimal values of pH, Cu and chitosan concentrations to be 9.3, 0.088 M and 0.01 M, respectively. A STY of 92.44 mgmethanol gcatalyst−1 h−1 and a selectivity higher than 90% were obtained. A constant reaction yield was obtained for 140 min and the STY only decreased by 18%. Catalyst's reusability was demonstrated for three cycles with a 20% of STY loss.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/8c5cfaeb8867452a877357867bba6d6a Zobrazit plný text záznamu Full Text from ScienceDirect View record in DOAJ