Issue
Korean Journal of Chemical Engineering,
Vol.33, No.4, 1192-1199, 2016
Catalytic removal of CO and NOx using sol-gel synthesized LaB0.5Co0.5O3 (B=Cr, Mn and Cu) and LaMnxCo1.xO3 nano-perovskites
Perovskite formulations of LaB0.5Co0.5O3 (B=Cr, Mn and Cu) were examined and evaluated as catalyst for reduction of NOx by CO. Among the different and various formulations, LaMn0.5Co0.5O3 showed the highest activityselectivity with 89.84% conversion of NO and 9.62% yield of N2O at 400 ℃. Therefore, more precise evaluations were implemented on LaMnxCo1-xO3 to find the optimum formulation. The LaMn0.25Co0.75O3 included the maximum performance (68.79% conversion of NO at 350 ℃ and 92.85% at 400 ℃) and N2O yield (9.01); therefore, it was selected as optimum catalyst. Characterization methods were utilized to correlate activity and physical-chemical properties. The presented activity and reducibility of catalysts were improved due to partial substitution of Co3+ by B cation. Finally, no direct relationship was found between surface area and catalyst activity. The optimum catalyst showed complete activity-selectivity higher than 450 ℃.
[References]
  1. Esther J, Sukla LB, Pradhan N, Panda S, Korean J. Chem. Eng., 32(1), 1, 2015
  2. Fritz A, Pitchon V, Appl. Catal. B: Environ., 131, 1, 1997
  3. Amiridis MD, Zhang TJ, Farrauto RJ, Appl. Catal. B: Environ., 10(1-3), 203, 1996
  4. Burch R, Breen JP, Meunier FC, Appl. Catal. B: Environ., 39(4), 283, 2002
  5. Jia Y, Du D, Zhang X, Ding X, Zhong O, Korean J. Chem. Eng., 30(9), 1735, 2013
  6. Dong H, Zhang Y, Gu Z, Korean J. Chem. Eng., 31(6), 1002, 2014
  7. Chambers DC, Angove DE, Cant NW, J. Catal., 204(1), 11, 2001
  8. Granger P, Malfoy P, Esteves P, Leclercq L, Leclercq G, J. Catal., 187(2), 321, 1999
  9. Granger P, Delannoy L, Lecomte JJ, Dathy C, Praliaud H, Leclercq L, Leclercq G, J. Catal., 207(2), 202, 2002
  10. Bera P, Patil K, Jayaram V, Hegde M, Subbanna G, J. Mater. Chem., 9, 1801, 1999
  11. Merino NA, Barbero BP, Grange P, Cadus LE, J. Catal., 231(1), 232, 2005
  12. Femina P, Sanjay P, Research Journal of Recent Sciences, ISSN, 2277, 2502 (2012).
  13. Alifanti M, Blangenois N, Florea M, Delmon B, Appl. Catal. A: Gen., 280(2), 255, 2005
  14. Screen T, Platinum Metals Review, 51, 87, 2007
  15. Nishihata Y, Nature, 418, 138, 2002
  16. Gallagher P, Johnson D, Vogel E, J. Am. Ceram. Soc., 60, 28, 1977
  17. Levasseur B, Kaliaguine S, Appl. Catal. B: Environ., 88(3-4), 305, 2009
  18. Hosseini SA, Sadeghi MT, Alemi A, Niaei A, Salari D, Kafi-Ahmadi L, Chin. J. Catal., 31, 747, 2010
  19. Kim J, Kim T, Yoo JW, Lee KB, Hong SI, Korean J. Chem. Eng., 29(10), 1329, 2012
  20. Giannakas AE, Ladavos AK, Pomonis PJ, Appl. Catal. B: Environ., 49(3), 147, 2004
  21. Giannakas AE, Leontiou AA, Ladavos AK, Pomonis PJ, Appl. Catal. A: Gen., 309(2), 254, 2006
  22. Belessi VC, Costa CN, Bakas TV, Anastasiadou T, Pomonis PJ, Efstathiou AM, Catal. Today, 59(3-4), 347, 2000
  23. Esaka T, Sakaguchi H, Kobayashi S, Solid State Ion., 166(3-4), 351, 2004
  24. Iwamoto M, Yahiro H, Kutsuno T, Bunyu S, Kagawa S, Bull. Chem. Soc. Jpn., 62, 583, 1989
  25. Zhang RD, Villanueva A, Alamdari HS, Kaliaguine S, Appl. Catal. B: Environ., 64(3-4), 220, 2006
  26. Zhang RD, Villanueva A, Alamdari H, Kaliaguine S, Appl. Catal. A: Gen., 307(1), 85, 2006
  27. He H, Liu M, Dai HX, Qiu WG, Zi XH, Catal. Today, 126(3-4), 290, 2007
  28. Ciambelli P, Cimino S, De Rossi S, Lisi L, Minelli G, Porta P, Russo G, Appl. Catal. B: Environ., 29(4), 239, 2001
  29. Zhang RD, Villanueva A, Alamdari H, Kaliaguine S, J. Mol. Catal. A-Chem., 258(1-2), 22, 2006
  30. Hosseini SA, Salari D, Niaei A, Oskoui SA, J. Ind. Eng. Chem., 19(6), 1903, 2013
  31. Zhou JM, Zhao L, Huang QQ, Zhou RX, Li XK, Catal. Lett., 127(3-4), 277, 2009
  32. Maity S, Ray S, Bhattacharya D, J. Phys. Chem. Solids, 74, 315, 2013
  33. Zhu X, Shi Y, Li A, Zhong Q, Ionics, 20, 1011, 2014
  34. Dacquin JP, Lancelot C, Dujardin C, Da Costa P, Djega-Mariadassou G, Beaunier P, Kaliaguine S, Vaudreuil S, Royer S, Granger P, Appl. Catal. B: Environ., 91(3-4), 596, 2009
  35. Deganello F, Marci G, Deganello G, J. European Ceram. Soc., 29, 439, 2009
  36. Granger P, Dujardin C, Paul JF, Leclercq G, J. Mol. Catal. A-Chem., 228(1-2), 241, 2005