JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Microstructural property and catalytic activity of nano-sized MnOx-CeO2/TiO2 for NH3-SCR
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Microstructural property and catalytic activity of nano-sized MnOx-CeO2/TiO2 for NH3-SCR
Hwang, Sungchul; Jo, Seung-hyeon; Shin, Min-Chul; Cha, Jinseon; Lee, Inwon; Park, Hyun; Lee, Heesoo;
  PDF(new window)
 Abstract
is used as a co-catalyst with to improve the catalytic activity of and characterization of nano-sized powder is identified with de-NOx efficiency. A comparison between and single was conducted in terms of microstructural analysis to observe the behavior of in the ternary catalyst. The catalyst was synthesized by sol-gel method and the average particle size of the single is about due to the low thermal stability, whereas the particle size is about 130 nm. The strong interaction between Ce and Ti was identified through the EDS mapping by transmission electron microscopy (TEM). The improvement about 20 % of efficiency is observed in the low-temperature () and vigorous oxygen exchange by well-dispersed is the reason of catalytic activity improvement.
 Keywords
Low temperature SCR;;Microstructural property;Local atomic structure;EXAFS;
 Language
Korean
 Cited by
 References
1.
H. Bosch and F. Janssen, Preface, Catal. Today 2 (1988) 369. crossref(new window)

2.
P.G.W.A. Kompio, A. Bruckner, F. Hipler, G. Auer, E. Loffler and W. Grunert, "A new view on the relations between tungsten and vanadium in $V_2O_5$ single bond $WO_3/TiO_2$ catalysts for the selective reduction of NO with $NH_3$", J. Catal. 286 (2012) 237. crossref(new window)

3.
R.H. Gao, D.S. Zhang, X.G. Liu, L.Y. Shi, P. Maitarad, H.R. Li, J.P. Zhang and W.G. Cao, "Enhanced catalytic performance of $V_2O_5-WO_3/Fe_2O_3/TiO_2$ microspheres for selective catalytic reduction of NO by $NH_3$", Catal. Sci. Technol. 3 (2013) 191. crossref(new window)

4.
M.M. Shafer, B.M. Toner, J.T. Overdier, J.J. Schauer, S.C. Fakra, S. Hu, J.D. Herner and A. Ayala, "Chemical speciation of vanadium in particulate matter emitted from diesel vehicles and urban atmospheric aerosols", Environ. Sci. Technol. 46 (2012) 189. crossref(new window)

5.
F. Kapteijn, L. Singoredjo, A. Andreini and J.A. Moulijn, "Activity and selectivity of pure manganese oxides in the selective catalytic reduction of nitric oxide with ammonia", Appl. Catal. B 3 (1994) 173. crossref(new window)

6.
X.W. Liu, K.B. Zhou, L. Wang, B.Y. Wang and Y.D. Li, "Oxygen vacancy clusters promoting reducibility and activity of ceria nanorods", J. Am. Chem. Soc. 13c (2009) 3140.

7.
X.J. Du, D.S. Zhang, L.Y. Shi, R.H. Gao and J.P. Zhang, "Morphology dependence of catalytic properties of $Ni/CeO_2$ nanostructures for carbon dioxide reforming of methane", J. Phys. Chem. C 116 (2012) 10009. crossref(new window)

8.
C. Fang, D.S. Zhang, L.Y. Shi, R.H. Gao, H.R. Li, L.P. Ye and J.P. Zhang, "Highly dispersed $CeO_2$ on carbon nanotubes for selective catalytic reduction of NO with $NH_3$", Catal. Sci. Technol. 3 (2013) 803. crossref(new window)

9.
D.S. Zhang, L. Zhang, L.Y. Shi, C. Fang, H.R. Li, R.H. Gao, L. Huang and J.P. Zhang, "In situ supported $MnO_x-CeO_x$ on carbon nanotubes for the low-temperature selective catalytic reduction of NO with $NH_3$", Nanoscale 5 (2013) 1127. crossref(new window)

10.
G. Qi, R.T. Yang and R. Chang, "$MnO_x-CeO_2$ mixed oxides prepared by co-precipitation for selective catalytic reduction of NO with $NH_3$ at low temperatures", Appl. Catal. B 51 (2004) 93. crossref(new window)

11.
S.M. Lee, K.H. Park and S.C. Hong, "$MnO_x/CeO_2-TiO_2$ mixed oxide catalysts for the selective catalytic reduction of NO with $NH_3$ at low temperature", Chem. Eng. J. 195-196 (2012) 323. crossref(new window)

12.
L. Liu, Z. Yao, B. Liu and L. Dong, "Correlation of structural characteristics with catalytic performance of $CuO/Ce_xZr_{1-x}O_2$ catalysts for NO reduction by CO", J. Catal. 275 (2010) 45. crossref(new window)

13.
P. Esteves, Y. Wu, C. Dujardin, M.K. Dongare and P. Granger, "Ceria-zirconia mixed oxides as thermal resistant catalysts for the decomposition of nitrous oxide at high temperature", Catal. Today 176 (2011) 453. crossref(new window)

14.
J.R. Kim, K.Y. Lee, M.J. Suh and S.-K. Ihm, "Ceria-zirconia mixed oxide prepared by continuous hydrothermal synthesis in supercritical water as catalyst support", Catal. Today 185 (2012) 25. crossref(new window)

15.
P. Li, "Ce-Ti amorphous oxides for selective catalytic reduction of NO with NH3: confirmation of Ce-O-Ti active sites", Environ. Sci. Technol. 46 (2012) 9600. crossref(new window)

16.
J. Fang, H. Bao, B. He, F. Wang, D. Si, Z. Jiang, Z. Pan, S. Wei and W. Huang, "Interfacial and surface structures of $CeO_2-TiO_2$ mixed oxides", J. Phys. Chem. C 111 (2007)19078. crossref(new window)

17.
P. Li, Y. Xin, Q. Li, Z. Wang, Z. Zhang and L. Zheng, "Ce-Ti amorphous oxides for selective catalytic reduction of NO with NH3: Confirmation of Ce-O-Ti active sites", Environ. Sci. Technol. 46 (2012) 9600. crossref(new window)

18.
B.M. Reddy, A. Khan, Y. Yamada, T. Kobayashi, S. Loridant and J.C. Volta, "Structural characterization of $CeO_2-TiO_2$ and $V_2O_5/CeO_2-TiO_2$ catalysts by Raman and XPS techniques", J. Phys. Chem. B 107 (2003) 5162. crossref(new window)

19.
X. Gao, Y. Jiang, Y. Zhong, Z. Luo and K. Cen, "The activity and characterization of $CeO_2-TiO_2$ catalysts prepared by the sol-gel method for selective catalytic reduction of NO with $NH_3$", J. Hazard. Mater. 174 (2010) 734. crossref(new window)