Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation
La(CoCuO3) nanoperovskites have been prepared by the mechano-synthesis method and treated with hydrogen to yield a high dispersion of bimetallic CoCu sites. The reduced LaCo1-xCuxO3 samples were characterized by XRD, H2-TPR, CO and H2 chemisorption and tested for CO dissociation and for alcohol syn...
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| Format: | Article |
| Language: | English |
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Elsevier
2016-09-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468217916300740 |
| _version_ | 1819133901184958464 |
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| author | Nguyen Tien Thao Le Thanh Son |
| author_facet | Nguyen Tien Thao Le Thanh Son |
| author_sort | Nguyen Tien Thao |
| collection | DOAJ |
| description | La(CoCuO3) nanoperovskites have been prepared by the mechano-synthesis method and treated with hydrogen to yield a high dispersion of bimetallic CoCu sites. The reduced LaCo1-xCuxO3 samples were characterized by XRD, H2-TPR, CO and H2 chemisorption and tested for CO dissociation and for alcohol synthesis from syngas. The experimental results indicated that the activities in CO dissociation and hydrogenation on copper-cobalt metals extracted from perovskite lattice crystals are significantly different from those in the extra-perovskite lattice. The overall catalytic activity in syngas conversion is correlated with the CoCu metal surface, but the alcohol productivity e productivity of alcohols decreases in the order of LaCo0.7Cu0.3O3 > LaCo0.4Cu0.6O3 > Cu2O/LaCoO3 > LaCo0.9Cu0.1O3 > LaCoO3. The highest catalytic activity and alcohol productivity was obtained over sample of the reduced LaCo0.7Cu0.3O3 perovskite catalyst. |
| first_indexed | 2024-12-22T09:54:39Z |
| format | Article |
| id | doaj.art-b45bb57dc8d14cbf889a78facc8dc5e0 |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-12-22T09:54:39Z |
| publishDate | 2016-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-b45bb57dc8d14cbf889a78facc8dc5e02022-12-21T18:30:18ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792016-09-011333734210.1016/j.jsamd.2016.07.011Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenationNguyen Tien ThaoLe Thanh SonLa(CoCuO3) nanoperovskites have been prepared by the mechano-synthesis method and treated with hydrogen to yield a high dispersion of bimetallic CoCu sites. The reduced LaCo1-xCuxO3 samples were characterized by XRD, H2-TPR, CO and H2 chemisorption and tested for CO dissociation and for alcohol synthesis from syngas. The experimental results indicated that the activities in CO dissociation and hydrogenation on copper-cobalt metals extracted from perovskite lattice crystals are significantly different from those in the extra-perovskite lattice. The overall catalytic activity in syngas conversion is correlated with the CoCu metal surface, but the alcohol productivity e productivity of alcohols decreases in the order of LaCo0.7Cu0.3O3 > LaCo0.4Cu0.6O3 > Cu2O/LaCoO3 > LaCo0.9Cu0.1O3 > LaCoO3. The highest catalytic activity and alcohol productivity was obtained over sample of the reduced LaCo0.7Cu0.3O3 perovskite catalyst.http://www.sciencedirect.com/science/article/pii/S2468217916300740CO hydrogenationMetal dispersionCu–CoPerovskite |
| spellingShingle | Nguyen Tien Thao Le Thanh Son Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation Journal of Science: Advanced Materials and Devices CO hydrogenation Metal dispersion Cu–Co Perovskite |
| title | Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation |
| title_full | Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation |
| title_fullStr | Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation |
| title_full_unstemmed | Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation |
| title_short | Production of cobalt-copper from partial reduction of La(Co,Cu)O3 perovskites for CO hydrogenation |
| title_sort | production of cobalt copper from partial reduction of la co cu o3 perovskites for co hydrogenation |
| topic | CO hydrogenation Metal dispersion Cu–Co Perovskite |
| url | http://www.sciencedirect.com/science/article/pii/S2468217916300740 |
| work_keys_str_mv | AT nguyentienthao productionofcobaltcopperfrompartialreductionoflacocuo3perovskitesforcohydrogenation AT lethanhson productionofcobaltcopperfrompartialreductionoflacocuo3perovskitesforcohydrogenation |