Abstract
The effect of Ce-loading over Sb-V2O5/TiO2 catalysts was investigated for the removal of NOx by NH3. In order to understand the influence of Ce-loading over Sb-V2O5/TiO2, NH3-temperature programmed desorption, H2-temperature programmed reduction, X-ray photoelectron spectroscopy (XPS) and diffused reflectance infrared fourier transformed spectroscopy (DRIFTS) were carried out. The 10 % Ce-loaded Sb-V2O5/TiO2 catalyst exhibited superior activity than commercial V2O5–WO3–TiO2 under 6 % H2O and 800 ppm SO2. The XPS results indicated the presence of Ce3+ species. The amount of Brønsted acid sites significantly increased as a result of Ce-loading. The DRIFT spectrum of Sb-V2O5/TiO2 catalyst indicated a peak at 1,363 cm−1, which corresponded to intermediates of ammonia oxidation species at 350 °C. Experimental results suggest that high NOx conversion and N2 selectivity of 10 % Ce-loaded Sb-V2O5/TiO2 was attributed to enhanced acidity and reducibility.
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Forzatti P (2001) Appl Catal A 222:221
Roy S, Hegde MS, Madras G (2009) Appl Energy 86:2283
Nova I, Ciardelli C, Tronconi E, Chatterjee D, Bandl-Konrad B (2006) AIChE J 52:3222
Busca G, Lietti L, Ramis G, Berti F (1998) Appl Catal B 18:1
Chmielarz L, Kustrowski P, Dziembaj R, Cool P, Vansant EF (2006) Appl Catal B 62:369
Li J, Chang H, Ma L, Hao J, Yong RT (2011) Catal Today 175:147
Wu ZB, Jin RB, Wang HQ, Liu Y (2009) Catal Commun 10:935
Metkar PS, Harold MP, Balakotaiah V (2012) Appl Catal B 111:67
Roy SB, Viswanath B, Hegde MS, Madras G (2008) J Phys Chem C 112:6002
Orsenigo C, Lietti L, Tronconi E, Forzatti P, Bregani F (1998) Ind Eng Chem Res 37:2350
Madia G, Elsener M, Koebel M, Raimondi F, Wokaun A (2002) Appl Catal B 39:181
Casagrande L, Lietti L, Nova I, Forzatti P, Baiker A (1999) Appl Catal B 22:63
Kobayashi M, Miyoshi K (2007) Appl Catal B 72:253
Krocher O, Elsner M (2008) Ind Eng Chem Res 47:8588
Taylor KC (1993) Catal Rev Sci Eng 35:457
Kalakkad DS, Datye AK, Robota HJ (1994) J Catal 148:729
Li G, Yang RT, Chang R (2004) Appl Catal B 51:93
Wu Z, Jin R, Liu Y, Wang H (2008) Catal Commun 9:2217
Li G, Yang RT (2004) J Phys Chem B 108:15738
Casapu M, Krocher O, Elsener M (2009) Appl Catal B 88:413
Casapu M, Krocher O, Mehring M, Nachtegaal M, Borca C, Harfouche M, Grolimund D (2010) J Phys Chem C 114:9791
Qi G, Yang RT (2003) Chem Commun 7:848
Guan B, Lin H, Zhu L, Tian B, Huang Z (2012) Chem Eng J 182:307
Chen L, Li J, Ge M (2009) J Phys Chem C 113:21177
Phil HH, Reddy MP, Kumar PA, Ju LK, Hyo JS (2008) Appl Catal B 78:301
Reddy BM, Khan A, Yamada Y (2003) J Phys Chem B 107:5162
Guan B, Lin H, Zhu L, Huang Z (2011) J Phys Chem C 115:12850
Chen L, Li J, Ge M, Zhu R (2010) Catal Today 153:77
Choi E-Y, Nam I-S, Kim YG (1996) J Catal 161:597
Kang M, Park ED, Kim JM, Yie JE (2007) Appl Catal A 327:261
Pena DA, Uphade BS, Reddy EP, Smirniotis PG (2004) J Phys Chem B 108:9927
Lin CH, Bai H (2003) Appl Catal B 42:279
Chen L, Li J, Ge M (2010) Environ Sci Technol 44:9590
Amiridis MD, Duevel RV, Wachs IE (1999) Appl Catal B 20:111
Pena DA, Uphade BS, Smirniotis PG (2004) J Catal 221:421
Acknowledgments
This work was financially supported by ‘Future core technology’ program from KIST and a grant from the ‘Fundamental R&D Program for the core technology of materials’ funded by Ministry of Knowledge Economy, Republic of Korea.
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Lee, K.J., Maqbool, M.S., Kumar, P.A. et al. Enhanced Activity of Ceria Loaded Sb-V2O5/TiO2 Catalysts for NO Reduction with Ammonia. Catal Lett 143, 988–995 (2013). https://doi.org/10.1007/s10562-013-1035-1
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DOI: https://doi.org/10.1007/s10562-013-1035-1