Abstract
The production of high value-added oxygenated chemicals from methanol and its derivatives is one of the important ways of coal conversion and clean and efficient utilization. Herein, a series of environmentally-friendly Cs-modified NASICON materials were applied to catalyze the aldol condensation of acetic acid (HAc) and formaldehyde (FA) to acrylic acid (AA) and methyl acrylate (MA). Encouragingly, the selectivity of target products (AA + MA) was highly up to 92.2%, corresponding to the space–time-yield more than 48.0 μmol·gcat-1·min-1 over the 2Cs/NSC catalyst, achieving the synchronization of good selectivity and productivity for the target products. Characterization results demonstrated that the acid-base modulation by Cs was responsible for catalyst supremacy. The weak basic sites on catalyst surface were efficient in adsorbing and activating HAc. Plenty of acidic sites especially the medium-strong and strong acidic sites were more favorable for the AA formation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.