Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts
The hydrogenation of CO2 was investigated on Ga-promoted Pd/SiO2 catalysts. A 500-fold turnover rate enhancement and an increase of the selectivity to methanol synthesis, up to 70%, were found under pseudo stationary state conditions (523 K and 3 MPa) using the promoted materials as compared to Pd/S...
| Authors: | ; ; ; |
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| Format: | Article |
| Status: | Published version |
| Publication date: | 2000 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/27677 |
| Online Access: | http://hdl.handle.net/11336/27677 |
| Access Level: | Open access |
| Keyword: | Methanol Synthesis Carbon Dioxide Palladium Silica https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| _version_ | 1878403906824830976 |
|---|---|
| author | Bonivardi, Adrian Lionel |
| author2 | Chiavassa, Dante Luis Querini, Carlos Alberto Baltanas, Miguel Angel |
| author2_role | author author author |
| author_browse | Baltanas, Miguel Angel Bonivardi, Adrian Lionel Chiavassa, Dante Luis Querini, Carlos Alberto |
| author_facet | Bonivardi, Adrian Lionel Chiavassa, Dante Luis Querini, Carlos Alberto Baltanas, Miguel Angel |
| author_role | author |
| collection | CONICET Digital (CONICET) |
| description | The hydrogenation of CO2 was investigated on Ga-promoted Pd/SiO2 catalysts. A 500-fold turnover rate enhancement and an increase of the selectivity to methanol synthesis, up to 70%, were found under pseudo stationary state conditions (523 K and 3 MPa) using the promoted materials as compared to Pd/SiO2. Based on apparent activation energy values and product distribution, a reaction pathway to CH3OH involving intermediates which are intrinsically associated to adsorbed CO2 is proposed. It is concluded that the Ga-Pd interaction, proved through DRS and TPR experiments, brings the catalytic performance of these Ga-Pd/silica materials close to that of the traditional Cu/ZnO-based catalyst for methanol synthesis. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | AR_d6830c7ce6436cef7fb35c6f143fcb4e |
| identifier_str_mv | Bonivardi, Adrian Lionel; Chiavassa, Dante Luis; Querini, Carlos Alberto; Baltanas, Miguel Angel; Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts; Elsevier Science; Studies In Surface Science And Catalysis; 130; 12-2000; 3747-3752 0167-2991 CONICET Digital CONICET |
| institution | Consejo Nacional de Investigaciones Científicas y Técnicas |
| instname_str | Consejo Nacional de Investigaciones Científicas y Técnicas |
| language | eng |
| network_acronym_str | AR |
| network_name_str | Argentina |
| oai_identifier_str | oai:ri.conicet.gov.ar:11336/27677 |
| publishDate | 2000 |
| publishDateSort | 2000 |
| publisher | Elsevier Science |
| publisherStr | Elsevier Science |
| reponame_str | CONICET Digital (CONICET) |
| spelling | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts Bonivardi, Adrian Lionel Chiavassa, Dante Luis Querini, Carlos Alberto Baltanas, Miguel Angel Methanol Synthesis Carbon Dioxide Palladium Silica https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 The hydrogenation of CO2 was investigated on Ga-promoted Pd/SiO2 catalysts. A 500-fold turnover rate enhancement and an increase of the selectivity to methanol synthesis, up to 70%, were found under pseudo stationary state conditions (523 K and 3 MPa) using the promoted materials as compared to Pd/SiO2. Based on apparent activation energy values and product distribution, a reaction pathway to CH3OH involving intermediates which are intrinsically associated to adsorbed CO2 is proposed. It is concluded that the Ga-Pd interaction, proved through DRS and TPR experiments, brings the catalytic performance of these Ga-Pd/silica materials close to that of the traditional Cu/ZnO-based catalyst for methanol synthesis. Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina Fil: Chiavassa, Dante Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina Fil: Querini, Carlos Alberto. Universidad Nacional del Litoral; Argentina Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina Elsevier Science http://hdl.handle.net/11336/27677 Bonivardi, Adrian Lionel; Chiavassa, Dante Luis; Querini, Carlos Alberto; Baltanas, Miguel Angel; Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts; Elsevier Science; Studies In Surface Science And Catalysis; 130; 12-2000; 3747-3752 0167-2991 CONICET Digital CONICET |
| spellingShingle | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts Bonivardi, Adrian Lionel Methanol Synthesis Carbon Dioxide Palladium Silica https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| status_str | publishedVersion |
| title | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts |
| title_full | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts |
| title_fullStr | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts |
| title_full_unstemmed | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts |
| title_short | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts |
| title_sort | Enhancement of the catalytic performance to methanol synthesis from CO2/H2 by gallium addition to palladium/silica catalysts |
| topic | Methanol Synthesis Carbon Dioxide Palladium Silica https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| topic_facet | Methanol Synthesis Carbon Dioxide Palladium Silica https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| url | http://hdl.handle.net/11336/27677 |