Abstract
A solid superacid catalyst with an acid strength of Ho ⩽ −16.04 was synthesized from tin hydroxide, which was obtained from the solution of pH 10, by exposing to 3 M H 2SO 4 followed by calcination in air at 823 K; the catalyst, SO 2- 4/SnO 2, was active for the skeletal isomerization of butane to isobutane at room temperature. The specific surface area of SO 2- 4/SnO 2 was much larger than that of SnO 2 without the sulfate treatment; by X-ray diffraction (XRD) analysis the degree of crystallization of the former material was much lower than that of the latter. Infrared (IR) spectra showed the catalyst to possess a bidentate sulfate ion coordinated to the metal. The present superacid showed the catalytic action of oxidation at elevated temperatures of >450 K; acetaldehyde and acetone were obtained as products from the hydration of ethene, and high selectivity of >95% for the formation of cyclohexanone from cyclohexanol was observed in the presence of water.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
