| Full text | |
| Author(s): |
Total Authors: 3
|
| Affiliation: | [1] Univ Sao Paulo, Escola Politecn, Dept Chem Engn, Av Prof Luciano Gualberto, Travessa 3, 380, BR-05508010 Sao Paulo - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | CATALYSIS LETTERS; v. 148, n. 11, p. 3413-3430, NOV 2018. |
| Web of Science Citations: | 1 |
| Abstract | |
Zinc oxide and graphene support as catalyst were synthesized and characterized using different techniques. Results showed that graphene presented thermal stability, and maintained its structure under heat treatment at temperatures of 500 degrees C. TPD He experiments showed decomposition of residual compounds, releasing oxygenated compounds after functionalization of the graphene oxide. The catalyst performance was evaluated for the reaction of CH4+CO2 and O-2 by surface reaction at programmed temperature. We observed the formation of CO, H-2 and H2O. However, TPSR and DRIFTS coupled to a mass spectrometer evidenced methane activation on ZnO/rGO-T, due to the evolution of H-2 and CO2 traces of water and hydrocarbons, such as ethane (C2H6). Less sensitive but present was the signal 60, which can be assigned to the formation of acetic acid (CH3COOH) at 300 degrees C. {[}GRAPHICS] . (AU) | |
| FAPESP's process: | 14/27317-7 - Study on nanostructured catalysts for carboxylation of methane with CO2 to produce high value-added products |
| Grantee: | Marcelo Dutra da Silva |
| Support Opportunities: | Scholarships in Brazil - Master |