LaNi^sub 1-x^Mn^sub x^O^sub 3^ perovskite-type oxides as catalysts precursors for dry reforming of methane
A series of ternary perovskite-type oxides LaNi1-xMnxO3 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) were synthesized by the sol–gel resin method in propionic acid, producing solids solutions of perovskite-type structures with crystallite sizes between 15–20 nm. The LaNi1-xMnxO3 catalysts were thoroughly cha...
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| Veröffentlicht in: | Applied catalysis. A, General General, 2018-09, Vol.565, p.26 |
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| creator | Valderrama, Gustavo Kiennemann, Alain de Navarro, Caribay Urbina Goldwasser, Mireya R |
| description | A series of ternary perovskite-type oxides LaNi1-xMnxO3 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) were synthesized by the sol–gel resin method in propionic acid, producing solids solutions of perovskite-type structures with crystallite sizes between 15–20 nm. The LaNi1-xMnxO3 catalysts were thoroughly characterized and tested in the catalytic dry reforming of methane (DRM) reaction. It was observed that the presence of Mn in the perovskite-type oxide increases the Ni3+ to Ni0 reduction temperature giving rise to formation of Ni0 nanoparticles on the MnOx-La2O3 matrix. The LaNi1-xMnxO3 with x ≤0.8 showed higher activities and selectivity’s towards syngas during the CH4–CO2 reforming, due to in situ formation of highly dispersed Ni0-metallic nanoparticles on the La2O2CO3-MnO-Mn2O3 solid matrix responsible for the high activity and high resistance to carbon buildup on the catalyst surface. |
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The LaNi1-xMnxO3 catalysts were thoroughly characterized and tested in the catalytic dry reforming of methane (DRM) reaction. It was observed that the presence of Mn in the perovskite-type oxide increases the Ni3+ to Ni0 reduction temperature giving rise to formation of Ni0 nanoparticles on the MnOx-La2O3 matrix. The LaNi1-xMnxO3 with x ≤0.8 showed higher activities and selectivity’s towards syngas during the CH4–CO2 reforming, due to in situ formation of highly dispersed Ni0-metallic nanoparticles on the La2O2CO3-MnO-Mn2O3 solid matrix responsible for the high activity and high resistance to carbon buildup on the catalyst surface.</description><identifier>ISSN: 0926-860X</identifier><identifier>EISSN: 1873-3875</identifier><language>eng</language><publisher>Amsterdam: Elsevier Science SA</publisher><subject>Catalysis ; Catalysts ; Catalytic reforming ; Crystallites ; High resistance ; Lanthanum oxides ; Manganese oxides ; Metal oxides ; Methane ; Nanoparticles ; Perovskite ; Perovskites ; Propionic acid ; Reforming ; Sol-gel processes ; Synthesis gas</subject><ispartof>Applied catalysis. 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A, General</title><description>A series of ternary perovskite-type oxides LaNi1-xMnxO3 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) were synthesized by the sol–gel resin method in propionic acid, producing solids solutions of perovskite-type structures with crystallite sizes between 15–20 nm. The LaNi1-xMnxO3 catalysts were thoroughly characterized and tested in the catalytic dry reforming of methane (DRM) reaction. It was observed that the presence of Mn in the perovskite-type oxide increases the Ni3+ to Ni0 reduction temperature giving rise to formation of Ni0 nanoparticles on the MnOx-La2O3 matrix. The LaNi1-xMnxO3 with x ≤0.8 showed higher activities and selectivity’s towards syngas during the CH4–CO2 reforming, due to in situ formation of highly dispersed Ni0-metallic nanoparticles on the La2O2CO3-MnO-Mn2O3 solid matrix responsible for the high activity and high resistance to carbon buildup on the catalyst surface.</description><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic reforming</subject><subject>Crystallites</subject><subject>High resistance</subject><subject>Lanthanum oxides</subject><subject>Manganese oxides</subject><subject>Metal oxides</subject><subject>Methane</subject><subject>Nanoparticles</subject><subject>Perovskite</subject><subject>Perovskites</subject><subject>Propionic acid</subject><subject>Reforming</subject><subject>Sol-gel processes</subject><subject>Synthesis gas</subject><issn>0926-860X</issn><issn>1873-3875</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqNistuwjAQAK0KpAboP6zE2ZITExPOVaseeFw4cEpkyAaSQhx2HZT8PQjxAZxmpJkPEYTJXEudzOOBCNQiMjIxavcpRsyVUiqaLeJAVEu7LlNu9xDKLl3VT-3SzZM6hQbJ3fi_9Ch93yC4rsyRwTIcrLfnnj1DQ3hoiR0xFI4gpx4IH3Yp6yO4Ai7oT7bGiRgW9sz49eJYTH9_tt9_siF3bZF9VrmW6kfKojA0JtLKzPR71x05MUok</recordid><startdate>20180905</startdate><enddate>20180905</enddate><creator>Valderrama, Gustavo</creator><creator>Kiennemann, Alain</creator><creator>de Navarro, Caribay Urbina</creator><creator>Goldwasser, Mireya R</creator><general>Elsevier Science SA</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20180905</creationdate><title>LaNi^sub 1-x^Mn^sub x^O^sub 3^ perovskite-type oxides as catalysts precursors for dry reforming of methane</title><author>Valderrama, Gustavo ; Kiennemann, Alain ; de Navarro, Caribay Urbina ; Goldwasser, Mireya R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_21166230643</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Catalysis</topic><topic>Catalysts</topic><topic>Catalytic reforming</topic><topic>Crystallites</topic><topic>High resistance</topic><topic>Lanthanum oxides</topic><topic>Manganese oxides</topic><topic>Metal oxides</topic><topic>Methane</topic><topic>Nanoparticles</topic><topic>Perovskite</topic><topic>Perovskites</topic><topic>Propionic acid</topic><topic>Reforming</topic><topic>Sol-gel processes</topic><topic>Synthesis gas</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Valderrama, Gustavo</creatorcontrib><creatorcontrib>Kiennemann, Alain</creatorcontrib><creatorcontrib>de Navarro, Caribay Urbina</creatorcontrib><creatorcontrib>Goldwasser, Mireya R</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied catalysis. A, General</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Valderrama, Gustavo</au><au>Kiennemann, Alain</au><au>de Navarro, Caribay Urbina</au><au>Goldwasser, Mireya R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>LaNi^sub 1-x^Mn^sub x^O^sub 3^ perovskite-type oxides as catalysts precursors for dry reforming of methane</atitle><jtitle>Applied catalysis. A, General</jtitle><date>2018-09-05</date><risdate>2018</risdate><volume>565</volume><spage>26</spage><pages>26-</pages><issn>0926-860X</issn><eissn>1873-3875</eissn><abstract>A series of ternary perovskite-type oxides LaNi1-xMnxO3 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) were synthesized by the sol–gel resin method in propionic acid, producing solids solutions of perovskite-type structures with crystallite sizes between 15–20 nm. The LaNi1-xMnxO3 catalysts were thoroughly characterized and tested in the catalytic dry reforming of methane (DRM) reaction. It was observed that the presence of Mn in the perovskite-type oxide increases the Ni3+ to Ni0 reduction temperature giving rise to formation of Ni0 nanoparticles on the MnOx-La2O3 matrix. The LaNi1-xMnxO3 with x ≤0.8 showed higher activities and selectivity’s towards syngas during the CH4–CO2 reforming, due to in situ formation of highly dispersed Ni0-metallic nanoparticles on the La2O2CO3-MnO-Mn2O3 solid matrix responsible for the high activity and high resistance to carbon buildup on the catalyst surface.</abstract><cop>Amsterdam</cop><pub>Elsevier Science SA</pub></addata></record> |
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| ispartof | Applied catalysis. A, General, 2018-09, Vol.565, p.26 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Catalysis Catalysts Catalytic reforming Crystallites High resistance Lanthanum oxides Manganese oxides Metal oxides Methane Nanoparticles Perovskite Perovskites Propionic acid Reforming Sol-gel processes Synthesis gas |
| title | LaNi^sub 1-x^Mn^sub x^O^sub 3^ perovskite-type oxides as catalysts precursors for dry reforming of methane |
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