Journal article
CuTi LDH derived NH 3 -SCR catalysts with highly dispersed CuO active phase and improved SO 2 resistance
- Abstract:
- Dispersed CuyTi1Ox catalysts derived from Cu-Ti-CO3 layered double hydroxides (LDHs) were successfully prepared. Due to the better dispersion of active CuO phase, the optimal catalyst Cu1Ti1Ox reached a high NOx conversion of 88.9% at 200 °C, which is significantly higher than that of the control catalyst 10 wt% CuO/TiO2 (29.5%). Cu1Ti1Ox catalyst also showed improved SO2 resistance, with a very stable NOx conversion of 76.4% at 200 °C after 8 h running with 50 ppm SO2, much higher than that of 10 wt% CuO/TiO2 (3.3%). The reaction mechanism was discussed with NH3-TPD and H2-TPR analyses, which indicated that Cu1Ti1Ox has more surface acidic sites and higher redox property than 10 wt% CuO/TiO2. In all, CuyTi1Ox prepared from Cu-Ti LDH precursor can work as highly efficient and SO2 resistant low-temperature NH3-SCR catalyst for NOx removal.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 2.4MB, Terms of use)
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- Publisher copy:
- 10.1016/j.catcom.2017.04.014
Authors
+ National Natural Science Foundation of China
More from this funder
- Grant:
- 51622801,51572029,
- 51308045
- Publisher:
- Elsevier
- Journal:
- Catalysis Communications More from this journal
- Volume:
- 97
- Pages:
- 47-50
- Publication date:
- 2017-04-07
- Acceptance date:
- 2017-04-06
- DOI:
- EISSN:
-
1566-7367
- Keywords:
- Pubs id:
-
pubs:691384
- UUID:
-
uuid:84212c94-10d2-4c4d-a9d6-7a2b0ab92a6b
- Local pid:
-
pubs:691384
- Source identifiers:
-
691384
- Deposit date:
-
2017-08-23
- ARK identifier:
Terms of use
- Copyright holder:
- Elsevier
- Copyright date:
- 2017
- Notes:
- Copyright © 2017 Elsevier B.V. This is the accepted manuscript version of the article. The final version is available online from Elsevier at: https://doi.org/10.1016/j.catcom.2017.04.014
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