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| Content Provider | Springer Nature Link |
|---|---|
| Author | Avgouropoulos, George Ioannides, Theophilos |
| Copyright Year | 2007 |
| Abstract | Temperature-programmed techniques were employed to investigate the interaction of CO with CuO–CeO2 prepared by the urea-nitrates combustion method. These catalysts exhibited high and stable CO oxidation activity at relatively low reaction temperatures (< 150 °C). The CO adsorption capacity and catalytic activity of the catalysts was analogous to the concentration of easily-reduced copper oxide surface species. TPD and TPSR results can be explained by a dual scheme of CO adsorption: (i) on oxidized sites, which get reduced with simultaneous formation of surface CO2 and (ii) on reduced sites created by the former interaction. 10–20% of adsorbed CO desorbs molecularly in the absence of gas-phase O2, but reacts totally towards CO2 in the presence of gas-phase O2. Inhibition by CO2 observed under steady-state CO oxidation conditions is due to CO2 adsorption as found by CO2-TPD. |
| Starting Page | 15 |
| Ending Page | 22 |
| Page Count | 8 |
| File Format | |
| ISSN | 1011372X |
| Journal | Catalysis Letters |
| Volume Number | 116 |
| Issue Number | 1-2 |
| e-ISSN | 1572879X |
| Language | English |
| Publisher | Kluwer Academic Publishers-Plenum Publishers |
| Publisher Date | 2007-04-24 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | CO oxidation ceria copper oxide combustion method TPD TPSR Pharmacy Industrial Chemistry/Chemical Engineering Physical Chemistry Catalysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Catalysis |
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