Time-resolved XAS/MS/Raman monitoring of mutual copper self-reduction and ethanol dehydrogenation reactions

Author(s)

Cassinelli, Wellington H. ^[1] ; Martins, Leandro ^[1] ; Magnani, Marina ^[1] ; Pulcinelli, Sandra H. ^[1] ; Briois, Valerie ^[2] ; Santilli, Celso V. ^[1]

Affiliation

^[1] Univ Estadual Paulista UNESP, Inst Quim, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil

^[2] Synchrotron SOLEIL, LOrme Merisiers, BP48, F-91192 Gif Sur Yvette - France

• Document type: Journal article
• Source: RSC ADVANCES; v. 6, n. 25, p. 20453-20457, 2016.
• Web of Science Citations: 12

Abstract

Selective ethanol dehydrogenation using a Cu/Al2O3 catalyst was investigated by time-resolved XAS/MS/Raman techniques. On-line monitoring of the reaction products revealed that formation of H-2 and acetaldehyde occurs over intermediate Cu+ species self-reduced upon reaction and the selectivity to ethyl acetate results in coupling of acetyl and ethoxy species over mixed Cu degrees/Cu+ active sites. (AU)

• FAPESP's process: 07/53073-4 - Mesoporous ceramics and multifunctional organic-inorganic hybrids prepared by sol-gel process
• Grantee: Celso Valentim Santilli
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 10/01449-3 - Development of porous heterogeneous catalysts for the conversion of renewable feedstocks
• Grantee: Leandro Pierroni Martins
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 13/05346-2 - E-MRS 2013 Spring Meeting
• Grantee: Wellington Henrique Cassinelli
• Support Opportunities: Research Grants - Meeting - Abroad