Correlation between Structural and Catalytic Properties of Copper Supported on Porous Alumina for the Ethanol Dehydrogenation Reaction

• DOI: 10.1002/cctc.201500112
• Publication Date: 2015-05-27T15:59:56Z
• Authors: Wellington H. Cas...; Leandro Martins; Aline R. Passos; Sandra H. Pulcinelli; Amélie Rochet; Valérie Briois; Celso V. Santilli
• Keywords: Incipient wetness impregnation

Abstract Structural and surface features of highly dispersed copper catalysts supported on hierarchical porous alumina were evaluated for the ethanol dehydrogenation reaction. The prepared by incipient wetness impregnation obtained a dual template sol–gel procedure. characterizations provided evidence that was in form monomeric octahedral Cu 2+ species adsorbed into an incomplete layer. A two‐step reduction observed temperature range 50–250 °C under H 2 /He flow. onset percentage + formed upon activation dependent loading. At lower loadings, amount increased, leading to slower less complete reduction. Based apparent energy turnover frequency, it could be concluded containing mixture /Cu 0 results more efficient catalyst than