| Full text | |
| Author(s): |
Metzker, Gustavo
[1]
;
Vargas, Jorge Andres Mora
[1]
;
de Lima, Livia Padilha
[1]
;
Perrone, Olavo Micali
[1]
;
Siqueira, Marcos Rechi
[1]
;
Varanda, Laudemir Carlos
[2]
;
Boscolo, Mauricio
[1]
Total Authors: 7
|
| Affiliation: | [1] Sao Paulo State Univ UNESP, Chem & Environm Sci Dept IBILCE, Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Sao Paulo, Sao Carlos Inst Chem IQSC, Sao Carlos, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | APPLIED CATALYSIS A-GENERAL; v. 623, AUG 5 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Described is the transformation of ethanol into 1-butanol, acetaldehyde and other products by the Guerbet reaction (GR) over mixed metal oxides (MMOs) as catalysts. The MMOs, in which Mg2+ was partially (20 mol%) substituted by Fe2+, Co2+, Ni2+, Cu2+, and Zn2+, were obtained from hydrotalcite precursors and the reactions conducted in a fixed bed flow reactor. EPR was used to observe oxygen vacancies after the catalytic reactions, which may be related to the ethanol reactivity due to the basicity enhancement of the catalyst. Carbon deposition, mostly filamentous, was observed in all catalysts and a trend between the metal-carbon bond energy and the percentage of deposited carbon was established. This correlation and the catalyst product distribution can be useful to tailor new catalysts. Using four parameters, ethanol conversion, 1-butanol and side-product selectivities and percentage of carbon deposition, Zn20MMO proved to be the best choice for GR. (AU) | |
| FAPESP's process: | 92/03515-3 - Synthesis, characterization and thermal reactivity and photochemistry of ruthenium complexes: implications in catalysis, chemotherapy and photodynamic therapy |
| Grantee: | Douglas Wagner Franco |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/02471-4 - Valorization of sugar cane fusel oil by catalytic partial dehydrogenation |
| Grantee: | Mauricio Boscolo |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 19/11058-6 - Gas sensors based on carbon composites from the catalytic decomposition reaction of methane |
| Grantee: | Olavo Micali Perrone |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 17/09520-8 - Sucrose pyridinic esters: synthesis, characterization and antimicrobial activity: evaluation of the synthesis parameters by acoustic cavitation |
| Grantee: | Jorge Andrés Mora Vargas |
| Support Opportunities: | Scholarships in Brazil - Master |