The selective oxidation of: N -butanol to butyraldehyde by oxygen using stable Pt-based nanoparticulate catalysts: An efficient route for upgrading aqueous biobutanol

Inaki Gandarias*, Ewa Nowicka, Blake J. May, Shaimaa Alghareed, Robert D. Armstrong, Peter J. Miedziak, Stuart H. Taylor

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)
13 Downloads (Pure)

Abstract

Supported Pt nanoparticles are shown to be active and selective towards butyraldehyde in the base-free oxidation of n-butanol by O2 in an aqueous phase. The formation of butyric acid as a by-product promoted the leaching of Pt and consequently the activity of the catalysts decreased upon reuse. Characterisation showed that the degree to which Pt leached from the catalysts was related to both the metal-support interaction and metal particle size. A catalyst active and stable (<1% metal leaching) in the aqueous reaction medium was obtained when Pt nanoparticles were supported on activated carbon and prepared by a chemical vapour impregnation method. The presence of n-butanol in the aqueous medium is required to inhibit the over oxidation of butyraldehyde to butyric acid. Consequently, high selectivities towards butyraldehyde can only be obtained at intermediate n-butanol conversion.

Original languageEnglish
Pages (from-to)4201-4209
Number of pages9
JournalCatalysis Science and Technology
Volume6
Issue number12
DOIs
Publication statusPublished - 19 Jan 2016
Externally publishedYes

Fingerprint

Dive into the research topics of 'The selective oxidation of: N -butanol to butyraldehyde by oxygen using stable Pt-based nanoparticulate catalysts: An efficient route for upgrading aqueous biobutanol'. Together they form a unique fingerprint.

Cite this