Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Zelin, Juan | - |
| dc.creator | Meyer, Camilo Ignacio | - |
| dc.creator | Regenhardt, Silvina Andrea | - |
| dc.creator | Sebastian, V. | - |
| dc.creator | Garetto, Teresita Francisca | - |
| dc.creator | Marchi, Alberto Julio | - |
| dc.date | 2018-05-09T15:47:24Z | - |
| dc.date | 2018-05-09T15:47:24Z | - |
| dc.date | 2017-07 | - |
| dc.date | 2018-05-03T16:45:23Z | - |
| dc.date.accessioned | 2019-04-29T15:48:55Z | - |
| dc.date.available | 2019-04-29T15:48:55Z | - |
| dc.date.issued | 2017-07 | - |
| dc.identifier | Zelin, Juan; Meyer, Camilo Ignacio; Regenhardt, Silvina Andrea; Sebastian, V.; Garetto, Teresita Francisca; et al.; Selective liquid-phase hydrogenation of fructose to D-mannitol over copper-supported metallic nanoparticles; Elsevier Science Sa; Chemical Engineering Journal; 319; 7-2017; 48-56 | - |
| dc.identifier | 1385-8947 | - |
| dc.identifier | http://hdl.handle.net/11336/44589 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/302774 | - |
| dc.description | The selective liquid-phase hydrogenation of d-fructose was studied on Cu-based catalyst, using an ethanol-water (70:30) mixture as solvent. The catalysts were prepared by three different methods: incipient wetness impregnation (Cu/SiO2-I and Cu/Al2O3-I), precipitation–deposition (Cu/SiO2-PD) and co-precipitation (CuMgAl and CuZnAl). After the thermal treatment, the samples were characterized by X-ray diffraction (XRD) and temperature-programmed reduction (TPR). Only a tenorite-like polycrystalline phase, formed by large CuO crystallites, was identified in Cu/SiO2-I, while none crystalline phase was observed in the case of Cu/SiO2-PD. Instead, a unique spinel-like phase was detected with Cu/Al2O3-I, CuMgAl and CuZnAl. Combining XRD and TPR results, we concluded that Cu2+ is highly dispersed in the Cu/SiO2-PD, Cu/Al2O3-I, CuMgAl and CuZnAl calcined precursors. As a consequence, after reduction in H2 flow, the metal dispersion and hydrogen chemisorption capacity of these four samples were one order higher than for Cu/SiO2-I. The catalytic tests showed that Cu/SiO2-PD was not only the most active but also the most selective and stable catalyst of these series: a D-fructose conversion of around 100% was reached after 6 h reaction, with a selectivity to d-mannitol of around 78–80%. These results show that selective hydrogenation of fructose to d-mannitol is favoured over metal Cu nanoparticles dispersed on the surface of a neutral support as SiO2. Additional catalytic tests, varying fructose initial concentration (0.028–0.220 M) and hydrogen pressure (20–40 bar), were carried out with Cu/SiO2-PD. A zero reaction order respect to D-fructose and a second reaction order respect to H2 were estimated. In addition, it was found that d-mannitol selectivity is not dependent on reactant initial concentration and hydrogen pressure. | - |
| dc.description | Fil: Zelin, Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina | - |
| dc.description | Fil: Meyer, Camilo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina | - |
| dc.description | Fil: Regenhardt, Silvina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina | - |
| dc.description | Fil: Sebastian, V.. Universidad de Zaragoza; España. CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN); España | - |
| dc.description | Fil: Garetto, Teresita Francisca. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina | - |
| dc.description | Fil: Marchi, Alberto Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Elsevier Science Sa | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cej.2017.02.127 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.source.uri | http://hdl.handle.net/11336/48091 | - |
| dc.subject | CU-BASED CATALYST | - |
| dc.subject | D-FRUCTOSE | - |
| dc.subject | D-MANNITOL | - |
| dc.subject | LIQUID-PHASE HYDROGENATION | - |
| dc.subject | Otras Ingeniería Química | - |
| dc.subject | Ingeniería Química | - |
| dc.subject | INGENIERÍAS Y TECNOLOGÍAS | - |
| dc.subject | Otras Ingeniería Química | - |
| dc.subject | Ingeniería Química | - |
| dc.subject | INGENIERÍAS Y TECNOLOGÍAS | - |
| dc.title | Selective liquid-phase hydrogenation of fructose to D-mannitol over copper-supported metallic nanoparticles | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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