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| Content Provider | Springer Nature Link |
|---|---|
| Author | Fathali, Anna Olsson, Louise Ekström, Fredrik Laurell, Mats Andersson, Bengt |
| Copyright Year | 2013 |
| Abstract | In order to quantify hydrothermal aging effects on the mono- and bi-metallic Pd and Rh supported on cerium-zirconium promoted alumina commercial three-way catalysts (TWCs), the catalysts were tested both fresh and after accelerated hydrothermal aging. The catalytic tests showed clear deactivation of the aged samples and influence on TWC’s property, such as: light-off temperature, specific surface area (BET), dispersion of noble metals, oxygen storage capacity, oxygen storage capacity complete and labile oxygen storage capacity. Water inhibition have been investigated and confirmed for the performance of NO$_{x}$ reduction of the fresh catalyst. X-ray photoelectron spectroscopy was used to study changes in the oxidation state of the Pd and Rh present in the washcoat of the catalyst, before and after hydrothermal aging. Element maps by SEM-EDX analysis was perform in order to characterize the catalysts morphology, the surface’s composition and element distribution. |
| Starting Page | 323 |
| Ending Page | 328 |
| Page Count | 6 |
| File Format | |
| ISSN | 10225528 |
| Journal | Topics in Catalysis |
| Volume Number | 56 |
| Issue Number | 1-8 |
| e-ISSN | 15729028 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2013-03-07 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Automotive exhaust control TWC Aging Palladium Rhodium OSC BET Catalysis Physical Chemistry Pharmacy Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Catalysis |
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