Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction
This work describes the synthesis of LaFeO 3 perovskite modified by Sr and Cr using a polymerization chemical route, for application on steam methane reforming reaction. Results derived from X-ray diffraction (Fig. #1-a), X-ray photoelectron spectroscopy (Fig. #1-b), and transmission electron micro...
| Main Authors: | , |
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| Format: | Documento de Conferencia |
| Language: | spa |
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2021
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| Online Access: | http://repositorio.uptc.edu.co/handle/001/6864 |
| _version_ | 1801705882040401920 |
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| author | Gómez Cuaspud, Jairo Alberto Pérez Bustos, Hellem Geralding |
| author_facet | Gómez Cuaspud, Jairo Alberto Pérez Bustos, Hellem Geralding |
| author_sort | Gómez Cuaspud, Jairo Alberto |
| collection | DSpace |
| description | This work describes the synthesis of LaFeO 3 perovskite modified by Sr and Cr using a polymerization chemical route, for application on steam methane reforming reaction. Results derived from X-ray diffraction (Fig. #1-a), X-ray photoelectron spectroscopy (Fig. #1-b), and transmission electron microscopy (Fig. #1-c), confirmed the presence of a prevalent orthorhombic structure related with a nanostructured solid (15-33 nm). The methane conversion was 97±2 % and the selectivity of H2 was 96.5% at 700 °C and the stability test was performed during 240 hours, using the catalyst under similar reaction conditions. After 100 h with time on stream the catalyst led to a deactivation which is attributed to the growth of crystallite sizes. These results support the use of La 0.8 Sr 0.2 Fe 0.8 Cr 0.2 O 3 oxide as active catalyst, because it prevents carbon deposition and stabilizes resisting posterior sintering due to the reversible reduction-oxidation process during the steam methane reforming reaction. |
| format | Documento de Conferencia |
| id | repositorio.uptc.edu.co-001-6864 |
| institution | Repositorio Institucional UPTC |
| language | spa |
| publishDate | 2021 |
| record_format | dspace |
| spelling | repositorio.uptc.edu.co-001-68642022-08-01T21:06:08Z Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction Gómez Cuaspud, Jairo Alberto Pérez Bustos, Hellem Geralding This work describes the synthesis of LaFeO 3 perovskite modified by Sr and Cr using a polymerization chemical route, for application on steam methane reforming reaction. Results derived from X-ray diffraction (Fig. #1-a), X-ray photoelectron spectroscopy (Fig. #1-b), and transmission electron microscopy (Fig. #1-c), confirmed the presence of a prevalent orthorhombic structure related with a nanostructured solid (15-33 nm). The methane conversion was 97±2 % and the selectivity of H2 was 96.5% at 700 °C and the stability test was performed during 240 hours, using the catalyst under similar reaction conditions. After 100 h with time on stream the catalyst led to a deactivation which is attributed to the growth of crystallite sizes. These results support the use of La 0.8 Sr 0.2 Fe 0.8 Cr 0.2 O 3 oxide as active catalyst, because it prevents carbon deposition and stabilizes resisting posterior sintering due to the reversible reduction-oxidation process during the steam methane reforming reaction. 2021-12-21T18:21:46Z 2021-12-21T18:21:46Z 2017-12-15 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/001/6864 1992 instname:Universidad Pedagogica y Tecnologica de Colombia reponame:Repositorio de la Universidad Pedagogica y Tecnologica de Colombia repourl:https://repositorio.uptc.edu.co/ spa XI Encuentro Facultad de Ciencias-UPTC - III Encuentro Nacional La ciencia para el desarrollo sostenible del país - 2016 https://rdigitales.uptc.edu.co/memorias/index.php/facl_cienc2016/enc_fac_cien2016/paper/download/1992/1997 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/facl_cienc2016/enc_fac_cien2016/paper/view/1992 |
| spellingShingle | Gómez Cuaspud, Jairo Alberto Pérez Bustos, Hellem Geralding Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction |
| title | Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction |
| title_full | Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction |
| title_fullStr | Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction |
| title_full_unstemmed | Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction |
| title_short | Combustión synthesis of LaFeO3 Perovskite modifid BY Sr AND Cr for use in stem methane reforming reaction |
| title_sort | combustion synthesis of lafeo3 perovskite modifid by sr and cr for use in stem methane reforming reaction |
| url | http://repositorio.uptc.edu.co/handle/001/6864 |
| work_keys_str_mv | AT gomezcuaspudjairoalberto combustionsynthesisoflafeo3perovskitemodifidbysrandcrforuseinstemmethanereformingreaction AT perezbustoshellemgeralding combustionsynthesisoflafeo3perovskitemodifidbysrandcrforuseinstemmethanereformingreaction |
