Selective oxidation of: N -buthanol to butyraldehyde over MnCo2O4spinel oxides

Gheorghita Mitran, Shaojiang Chen, Dong Kyun Seo

Research output: Contribution to journalArticle

Abstract

Partial oxidation of n-butanol to butyraldehyde, propionaldehyde and acetaldehyde over MnCo2O4 spinel oxides has been investigated. Physicochemical characteristics of samples, prepared by co-precipitation with different amounts of precipitating agent, were studied by XRD, N2 adsorption-desorption isotherms, FT-IR, SEM and XPS. The ratio between the precipitating agent and the precursors has a considerable influence both on the structure, which is evidenced by XRD, due to switching from a crystalline structure to an amorphous one and on the surface (XPS) by an obvious change in the ratio Co3+/Co2+ and Mn4+/Mn3+ and in the content of oxygen vacancies. The reaction rate is not influenced by the oxygen pressure, emphasizing that n-butanol oxidation occurs through the Mars van Krevelen mechanism. The conversion of n-butanol and yield of butyraldehyde are directly proportional to the cobalt content on the surface, while the propionaldehyde yield is proportional to the Mn4+/Mn3+ ratio.

Original languageEnglish (US)
Pages (from-to)25125-25135
Number of pages11
JournalRSC Advances
Volume10
Issue number42
DOIs
StatePublished - Jul 2 2020

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Selective oxidation of: N -buthanol to butyraldehyde over MnCo<sub>2</sub>O<sub>4</sub>spinel oxides'. Together they form a unique fingerprint.

  • Cite this