Influence of copper on nickel-based catalysts in the conversion of glycerol
The effect of Cu on Ni in the catalytic transformation of glycerol is strongly governed bythe geometrical effect.In the case of the deep hydrogenolysis which produces CH4, the rupture of the C-Cbond by hydrogenolysis decreases by addition of small amounts of Cu and continues todecrease until CH4 be...
| Main Authors: | , , , , , , , |
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| Format: | Documento de Conferencia |
| Language: | spa |
| Published: |
2021
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| Online Access: | http://repositorio.uptc.edu.co/handle/001/6577 |
| _version_ | 1801705871915352064 |
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| author | Miranda, Bárbara C. Chimentão, Ricardo. J. Santos, Joao. B. O. Szanyi. Janos Braga, Adriano. H. Gispert Guirado, Francesc Llorca, Jordi Medina, Francesc |
| author_facet | Miranda, Bárbara C. Chimentão, Ricardo. J. Santos, Joao. B. O. Szanyi. Janos Braga, Adriano. H. Gispert Guirado, Francesc Llorca, Jordi Medina, Francesc |
| author_sort | Miranda, Bárbara C. |
| collection | DSpace |
| description | The effect of Cu on Ni in the catalytic transformation of glycerol is strongly governed bythe geometrical effect.In the case of the deep hydrogenolysis which produces CH4, the rupture of the C-Cbond by hydrogenolysis decreases by addition of small amounts of Cu and continues todecrease until CH4 be totally suppressed.As the Ni/Cu atomic ratio decreases the dehydration–dehydrogenation routes starts toprevail, and hydroxyacetone, pyruvaldehyde, lactic acid and pyruvaldehyde areformed.As revealed by XPS results, when the Ni/Cu atomic ratio decreases a progressiveenrichment of Cu in the catalyst surface occurs, decreasing the total number of exposedNi atoms and suppressing totally the deep hydrogenolysis. |
| format | Documento de Conferencia |
| id | repositorio.uptc.edu.co-001-6577 |
| institution | Repositorio Institucional UPTC |
| language | spa |
| publishDate | 2021 |
| record_format | dspace |
| spelling | repositorio.uptc.edu.co-001-65772023-04-19T15:48:28Z Influence of copper on nickel-based catalysts in the conversion of glycerol Miranda, Bárbara C. Chimentão, Ricardo. J. Santos, Joao. B. O. Szanyi. Janos Braga, Adriano. H. Gispert Guirado, Francesc Llorca, Jordi Medina, Francesc The effect of Cu on Ni in the catalytic transformation of glycerol is strongly governed bythe geometrical effect.In the case of the deep hydrogenolysis which produces CH4, the rupture of the C-Cbond by hydrogenolysis decreases by addition of small amounts of Cu and continues todecrease until CH4 be totally suppressed.As the Ni/Cu atomic ratio decreases the dehydration–dehydrogenation routes starts toprevail, and hydroxyacetone, pyruvaldehyde, lactic acid and pyruvaldehyde areformed.As revealed by XPS results, when the Ni/Cu atomic ratio decreases a progressiveenrichment of Cu in the catalyst surface occurs, decreasing the total number of exposedNi atoms and suppressing totally the deep hydrogenolysis. 2021-12-21T18:01:39Z 2021-12-21T18:01:39Z 2018-04-11 Documento de Conferencia http://purl.org/coar/resource_type/c_8544 info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion Text http://purl.org/coar/version/c_970fb48d4fbd8a85 http://repositorio.uptc.edu.co/handle/001/6577 2258 instname:Universidad Pedagogica y Tecnologica de Colombia reponame:Repositorio de la Universidad Pedagogica y Tecnologica de Colombia repourl:https://repositorio.uptc.edu.co/ spa Simposio Colombiano de Catálisis - 2017 https://rdigitales.uptc.edu.co/memorias/index.php/catalasis/catalasis/paper/download/2258/2318 https://creativecommons.org/licenses/by-nc-sa/4.0/ info:eu-repo/semantics/openAccess Atribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0) http://purl.org/coar/access_right/c_14cb application/pdf application/pdf https://rdigitales.uptc.edu.co/memorias/index.php/catalasis/catalasis/paper/view/2258 |
| spellingShingle | Miranda, Bárbara C. Chimentão, Ricardo. J. Santos, Joao. B. O. Szanyi. Janos Braga, Adriano. H. Gispert Guirado, Francesc Llorca, Jordi Medina, Francesc Influence of copper on nickel-based catalysts in the conversion of glycerol |
| title | Influence of copper on nickel-based catalysts in the conversion of glycerol |
| title_full | Influence of copper on nickel-based catalysts in the conversion of glycerol |
| title_fullStr | Influence of copper on nickel-based catalysts in the conversion of glycerol |
| title_full_unstemmed | Influence of copper on nickel-based catalysts in the conversion of glycerol |
| title_short | Influence of copper on nickel-based catalysts in the conversion of glycerol |
| title_sort | influence of copper on nickel based catalysts in the conversion of glycerol |
| url | http://repositorio.uptc.edu.co/handle/001/6577 |
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