화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.34, No.7, 2065-2071, July, 2017
Mechanism of Ce promoting SO2 resistance of MnOx/γ-Al2O3: An experimental and DFT study
E-mail:
Various physico-chemical techniques and theoretical chemistry computations are used to obtain a deep insight into the mechanism of Ce improving SO2 resistance of the catalyst Mn0.4Cex/Al2O3 (x stands for the molar ratio of Ce : Al). Theoretical computation with density functional theory (DFT) shows that Ce modification enhances the adsorption energy of SO2 adsorbed on Ce surrounding, resulting in the preferential adsorption of SO2 on Ce surrounding. It protects the surface Mn from SO2 poisoning, leading to a better SO2 resistance. FT-IR and TG results are in good accordance with DFT results. FT-IR results suggest that absorption peaks related to SO4 2- cannot be detected in Mn0.4Ce0.12/Al2O3. Moreover, TG results show that weight loss peaks due to sulfated MnOx decomposition disappears after Ce addition. Therefore, Ce modification inhibits sulfates formation on active components lead to a better resistance to SO2 of Mn0.4Ce0.12/Al2O3.
  1. Boningari T, Ettireddy PR, Somogyvari A, Liu Y, Vorontsov A, McDonald CA, Smirniotis PG, J. Catal., 325, 145 (2015)
  2. Lee SM, Park KH, Hong SC, Chem. Eng. J., 195-196, 323 (2012)
  3. Guo Q, Jing W, Cheng S, Huang Z, Sun D, Hou Y, Han X, Korean J. Chem. Eng., 32(11), 2257 (2015)
  4. Shen B, Ma H, Yao Y, J. Environ. Sci.-China, 24, 499 (2012)
  5. Sager SM, Kondarides DI, Verykios XE, Appl. Catal. B: Environ., 103(3-4), 275 (2011)
  6. Cao F, Xiang J, Su S, Wang PY, Hu S, Sun LS, Fuel Process. Technol., 135, 66 (2015)
  7. Qu L, Li CT, Zeng GM, Zhang MY, Fu MF, Ma JF, Zhan FM, Luo DQ, Chem. Eng. J., 242, 76 (2014)
  8. Wang MX, Liu HN, Huang ZH, Rang FY, Chem. Eng. J., 256, 101 (2014)
  9. Shen BX, Wang YY, Wang FM, Liu T, Chem. Eng. J., 236, 171 (2014)
  10. Yu J, Si ZC, Chen L, Wu XD, Weng D, Appl. Catal. B: Environ., 163, 223 (2015)
  11. Chang H, Chen X, Li J, Ma L, Wang C, Liu C, Schwank JW, Hao J, Environ. Sci. Technol., 47, 5294 (2013)
  12. Qi GS, Yang RT, J. Catal., 217(2), 434 (2003)
  13. Yu J, Guo F, Wang YL, Zhu JH, Liu YY, Su FB, Gao SQ, Xu GW, Appl. Catal. B: Environ., 95(1-2), 160 (2010)
  14. Liu FD, He H, Catal. Today, 153(3-4), 70 (2010)
  15. Cao F, Su S, Xiang J, Wang PY, Hu S, Sun LS, Zhang AC, Fuel, 139, 232 (2015)
  16. Shen BX, Zhang XP, Ma HQ, Yao Y, Liu T, J. Environ. Sci.-China, 25, 791 (2013)
  17. Zhang Q, Song Z, Ning P, Liu X, Li H, Gu J, Catal. Commun., 59, 170 (2015)
  18. Wu Z, Jin R, Wang H, Liu Y, Catal. Commun., 10, 935 (2009)
  19. Jin RB, Liu Y, Wang Y, Cen WL, Wu ZB, Wang HQ, Weng XL, Appl. Catal. B: Environ., 148, 582 (2014)
  20. Yang P, Xue XM, Meng ZH, Zhou RX, Chem. Eng. J., 234, 203 (2013)
  21. Delley B, J. Chem. Phys., 92, 508 (1990)
  22. Delley B, J. Chem. Phys., 113(18), 7756 (2000)
  23. Perdew JP, Burke K, Ernzerhof M, Phys. Rev. Lett., 77, 3865 (1996)
  24. Qi GS, Yang RT, J. Phys. Chem. B, 108(40), 15738 (2004)
  25. Baur WH, Acta Crystallogr. Sect. B-Struct. Sci., 32, 2200 (1976)
  26. Sørensen OT, J. Solid State Chem., 18, 217 (1976)
  27. Laachir A, Perrichon V, Badri A, Lamotte J, Catherine E, Lavalley JC, El Fallah J, Hilaire L, Le Normand F, Quemere E, J. Chem. Soc.-Faraday Trans., 87, 1601 (1991)
  28. Shang DH, Cai W, Zhao W, Bu YF, Zhong Q, Catal. Lett., 144(3), 538 (2014)
  29. Thirupathi B, Smirniotis PG, Appl. Catal. B: Environ., 110, 195 (2011)
  30. Sultana A, Sasaki M, Hamada H, Catal. Today, 185(1), 284 (2012)
  31. Xie JL, Fang D, He F, Chen JF, Fu ZB, Chen XL, Catal. Commun., 28, 77 (2012)
  32. Qi GS, Yang RT, J. Phys. Chem. B, 108(40), 15738 (2004)
  33. Kondarides DI, Verykios XE, J. Catal., 174(1), 52 (1998)
  34. Yang SX, Zhu WP, Jiang ZP, Chen ZX, Wang JB, Appl. Surf. Sci., 252(24), 8499 (2006)
  35. Shao Y, Li J, Chang H, Peng Y, Deng Y, Catal. Sci. Technol., 5, 3536 (2015)
  36. Zhou KB, Wang X, Sun XM, Peng Q, Li YD, J. Catal., 229(1), 206 (2005)
  37. Tompsett DA, Parker SC, Islam MS, J. Am. Chem. Soc., 136(4), 1418 (2014)
  38. Oxford GAE, Chaka AM, J. Phys. Chem. C, 115, 16992 (2011)
  39. Peng Y, Yu WW, Su WK, Huang X, Li JH, Catal. Today, 242, 300 (2015)
  40. Ji YY, Toops TJ, Crocker M, Catal. Lett., 127(1-2), 55 (2009)
  41. Ji YY, Toops TJ, Pihl JA, Crocker M, Appl. Catal. B: Environ., 91(1-2), 329 (2009)
  42. Zhang YP, Zhao XY, Xu HT, Shen K, Zhou CC, Jin BS, Sun KQ, J. Colloid Interface Sci., 361(1), 212 (2011)
  43. Ji WJ, Chen Y, Shen SK, Li SB, Wang HL, Appl. Surf. Sci., 99, 151 (1996)
  44. Fu HB, Wang X, Wu HB, Yin Y, Chen JM, J. Phys. Chem. C, 111, 6077 (2007)
  45. Mao LQ, T-Raissi A, Huang CP, Muradov NZ, Int. J. Hydrog. Energy, 36(10), 5822 (2011)
  46. Kijlstra WS, Biervliet M, Poels EK, Bliek A, Appl. Catal. B: Environ., 16, 327 (1998)
  47. Xu W, He H, Yu Y, J. Phys. Chem. C, 113, 4426 (2009)
  48. Casapu M, Krocher O, Elsener M, Appl. Catal. B: Environ., 88(3-4), 413 (2009)
  49. Zhu ZP, Liu ZY, Liu SJ, Niu HX, Hu TD, Liu T, Xie YN, Appl. Catal. B: Environ., 26(1), 25 (2000)