Lanthanum based high surface area perovskite-type oxide and application in CO and propane combustion
Fuente:
Redalyc
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidade Estadual Paulista Júlio de Mesquita Filho
2009
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1876481475870720000 |
|---|---|
| author | P. R. N. Silva |
| author_facet | P. R. N. Silva |
| contents | Lanthanum based high surface area perovskite-type oxide and application in CO and propane combustion P. R. N. Silva A. B. Soares Química propane oxidation Perovskites The perovskite-type oxides using transition metals present a promising potential as catalysts in total oxidation reaction. The present work investigates the effect of synthesis by oxidant co-precipitation on the catalytic activity of perovskite-type oxides LaBO3 (B= Co, Ni, Mn) in total oxidation of propane and CO. The perovskite-type oxides were characterized by means of X-ray diffraction, nitrogen adsorption (BET method), thermo gravimetric and differential thermal analysis (ATG-DTA) and X-ray photoelectron spectroscopy (XPS). Through a method involving the oxidant co-precipitation it's possible to obtain catalysts with different BET surface areas, of 33-44 m²/g, according the salts of metal used. The characterization results proved that catalysts have a perovskite phase as well as lanthanum oxide, except LaMnO3, that presents a cationic vacancies and generation for known oxygen excess. The results of catalytic test showed that all oxides have a specific catalytic activity for total oxidation of CO and propane even though the temperatures for total conversion change for each transition metal and substance to be oxidized. 2009 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42913582005 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.34 |
| format | Artículo científico |
| id | redalyc_42913582005 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Lanthanum based high surface area perovskite-type oxide and application in CO and propane combustion P. R. N. Silva Química propane oxidation Perovskites Lanthanum based high surface area perovskite-type oxide and application in CO and propane combustion P. R. N. Silva A. B. Soares Química propane oxidation Perovskites The perovskite-type oxides using transition metals present a promising potential as catalysts in total oxidation reaction. The present work investigates the effect of synthesis by oxidant co-precipitation on the catalytic activity of perovskite-type oxides LaBO3 (B= Co, Ni, Mn) in total oxidation of propane and CO. The perovskite-type oxides were characterized by means of X-ray diffraction, nitrogen adsorption (BET method), thermo gravimetric and differential thermal analysis (ATG-DTA) and X-ray photoelectron spectroscopy (XPS). Through a method involving the oxidant co-precipitation it's possible to obtain catalysts with different BET surface areas, of 33-44 m²/g, according the salts of metal used. The characterization results proved that catalysts have a perovskite phase as well as lanthanum oxide, except LaMnO3, that presents a cationic vacancies and generation for known oxygen excess. The results of catalytic test showed that all oxides have a specific catalytic activity for total oxidation of CO and propane even though the temperatures for total conversion change for each transition metal and substance to be oxidized. 2009 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42913582005 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.1 Vol.34 |
| title | Lanthanum based high surface area perovskite-type oxide and application in CO and propane combustion |
| topic | Química propane oxidation Perovskites |
| url | https://www.redalyc.org/articulo.oa?id=42913582005 |