Methane combustion on La-Sr-Ce-Fe-O mixed oxides: bifunctional synergistic action of SrFeO3-x and CeOx phases
| dc.contributor.author | Belessi, V. C. | en |
| dc.contributor.author | Ladavos, A. K. | en |
| dc.contributor.author | Pomonis, P. J. | en |
| dc.date.accessioned | 2015-11-24T16:41:36Z | |
| dc.date.available | 2015-11-24T16:41:36Z | |
| dc.identifier.issn | 0926-3373 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/8443 | |
| dc.rights | Default Licence | - |
| dc.subject | perovskite | en |
| dc.subject | catalytic combustion of ch4 | en |
| dc.subject | mixed iron phases | en |
| dc.subject | srfeo3-x | en |
| dc.subject | ceox | en |
| dc.subject | synergy | en |
| dc.subject | perovskite-type oxides | en |
| dc.subject | a-site cation | en |
| dc.subject | no plus co | en |
| dc.subject | catalytic combustion | en |
| dc.subject | oxidation | en |
| dc.subject | a=la | en |
| dc.subject | nd | en |
| dc.subject | reduction | en |
| dc.subject | kinetics | en |
| dc.subject | nitrate | en |
| dc.title | Methane combustion on La-Sr-Ce-Fe-O mixed oxides: bifunctional synergistic action of SrFeO3-x and CeOx phases | en |
| heal.abstract | The catalytic deep oxidation of methane over perovskite-type mixed oxide catalysts is examined. Three groups of mixed oxides (i) La1-yCeyFeO3 (0.0 < y less than or equal to 0.5), (ii) La1-xSrxFeO3 (0.01 < x less than or equal to 0.5) and (iii) La1-x-ySrxCeyFeO3 (0.0 < x, y less than or equal to 0.3), containing La, Sr, Ce, Fe cations in various ratios were prepared and characterized by XRD, Mossbauer spectroscopy and O-2-TPD measurements. The catalysts are active in the temperature range of 440-740 degreesC. A maximum of activity appears for y = 0.3, in the series La1-yCeyFeO3 in a wide temperature range. The increase of Sr content in the series La1-xSrxFeO3 results in the enhancement of the reaction rates which is related to the presence of SrFeO3-x crystal phase that favors the surface reaction. The double substituted solids La1-x-ySrxCeyFeO3 show higher catalytic activity as compared to the activity of the two other examined perovskitic series which is related to the bifunctional synergistic action of CeO2 and SrFeO3-x crystal phases in the solids. (C) 2001 Elsevier Science B.V. All rights reserved. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://000168838700005 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0926337300002794/1-s2.0-S0926337300002794-main.pdf?_tid=77d71e434d5547eec23843d7b8b06d6f&acdnat=1333036197_6db263f53bb6a95606b5b5e8cf8b398d | - |
| heal.journalName | Applied Catalysis B-Environmental | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2001 | - |
| heal.publisher | Elsevier | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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