Citation: Tiago Pinheiro Braga, Antônio Narcísio Pinheiro, Edson R. Leite, Regina Cláudia R. dos Santos, Antoninho Valentini. Cu, Fe, or Ni doped molybdenum oxide supported on Al₂O₃ for the oxidative dehydrogenation of ethylbenzene[J]. Chinese Journal of Catalysis, ;2015, 36(5): 712-720. doi: 10.1016/S1872-2067(14)60313-2 shu

Cu, Fe, or Ni doped molybdenum oxide supported on Al₂O₃ for the oxidative dehydrogenation of ethylbenzene

1.
a LABPEMOL-Laboratório de Peneiras Moleculares, Institute of Chemistry, Federal University of Rio Grande do Norte, Natal, RN, CEP: 59078-970, Brazil;

Corresponding author: Tiago Pinheiro Braga,
Received Date: 9 January 2015
Available Online: 3 February 2015

Molybdenum-based catalysts supported on Al₂O₃ doped with Ni, Cu, or Fe oxide were synthesized and used in ethylbenzene dehydrogenation to produce styrene. The molybdenum oxide was supported using an unconventional route that combined the polymeric precursor method (Pechini) and wet impregnation on commercial alumina. The samples were characterized by X-ray diffraction (XRD), N₂ adsorption-desorption isotherms, temperature-programmed reduction of H₂ (H₂-TPR), and thermogravimetric (TG) analysis. XRD results showed that the added metals were well dispersed on the alumina support. The addition of the metal oxide (Ni, Cu, or Fe) of 2 wt% by wet impregnation did not affect the texture of the support. TPR results indicated a synergistic effect between the dopant and molybdenum oxide. The catalytic tests showed ethylbenzene conversion of 28%-53% and styrene selectivity of 94%-97%, indicating that the addition of the dopant improved the catalytic performance, which was related to the redox mechanism. Molybdenum oxides play a fundamental role in the oxidative dehydrogenation of ethylbenzene to styrene by its redox and acid-base properties. The sample containing Cu showed an atypical result with increasing conversion during the reaction, which was due to metal reduction. The Ni-containing solid exhibited the highest amount of carbon deposited, shown by TG analysis after the catalytic test, which explained its lower catalytic stability and selectivity.
- Ethylbenzene,
- Styrene,
- Molybdenum,
- Alumina,
- Dopant
1. [1]
  [1] Baghalha M, Ebrahimpour O. Appl Catal A, 2007, 326: 143
2. [2]
  [2] Hirano T. Appl Catal, 1986, 26: 65
3. [3]
  [3] Mimura N, Saito M. Catal Today, 2000, 55: 173
4. [4]
  [4] Park S E, Han S C. J Ind Eng Chem, 2004, 10: 1257
5. [5]
  [5] Sun A L, Qin Z F, Wang J G. Appl Catal A, 2002, 234: 179
6. [6]
  [6] Sakurai Y, Suzaki T, Ikenaga N, Suzuki T. Appl Catal A, 2000, 192: 281
7. [7]
  [7] Sato S, Ohhara M, Sodesawa T, Nozaki F. Appl Catal, 1988, 37: 207
8. [8]
  [8] Fedorov G I, Sibgatullin S G, Solodova N L, Izmailov R I. Petrol Chem, 1976, 16(3): 162
9. [9]
  [9] Cavani F, Trifirò F. Appl Catal A, 1995, 133: 219
10. [10]
  [10] Li C G, Miao C X, Nie Y Y, Yue Y H, Gu S Y, Yang W M, Hua W M, Gao Z. Chin J Catal (李春光, 缪长喜, 聂颖颖, 乐英红, 顾松园, 杨为民, 华伟明, 高滋. 催化学报), 2010, 31: 993
11. [11]
  [11] Li H Y, Yue Y H, Miao C X, Xie Z K, Hua W M, Gao Z . Chin J Catal (李惠云, 乐英红, 缪长喜, 谢在库, 华伟明, 高滋. 催化学报), 2006, 27: 4
12. [12]
  [12] Ikenaga N, Tsuruda T, Senma K, Yamaguchi T, Sakurai Y, Suzuki T. Ind Eng Chem Res, 2000, 39: 1228
13. [13]
  [13] Carja G, Nakamura R, Aida T, Niiyama H. J Catal, 2003, 218: 104
14. [14]
  [14] He X X, Fan C, Gu X Y, Zhou X G, Chen D, Zhu Y A. J Mol Catal A, 2011, 344: 53
15. [15]
  [15] Braga T P, Pinheiro A N, Teixeira C V, Valentini A. Appl Catal A, 2009, 366: 193
16. [16]
  [16] Wong S T, Lin H P, Mou C Y. Appl Catal A, 2000, 198: 103
17. [17]
  [17] Morán C, González E, Sánchez J, Solano R, Carruyo G, Moronta A. J Colloid Interface Sci, 2007, 315: 164
18. [18]
  [18] Moronta A, Troconis M E, González E, Morán C, Sánchez J, González A, Quinónez J. Appl Catal A, 2006, 310: 199
19. [19]
  [19] Pramod C V, Raghavendra C, Reddy K H P, Babu G V R, Rao K S R, Raju B D. J Chem Sci, 2014, 126: 311
20. [20]
  [20] Su X Y, Wang R, Su D S. Chin J Catal (孙晓岩, 王锐, 苏党生. 催化学报), 2013, 34: 508
21. [21]
  [21] Chen D, Holmen A, Sui Z J, Zhou X G. Chin J Catal (催化学报), 2014, 35: 824
22. [22]
  [22] Cavani F, Trifiro F. Appl Catal A, 1995, 133: 219
23. [23]
  [23] Xin Q, Lin L W. Chin J Catal (辛勤, 林励吾. 催化学报), 2013, 34: 401
24. [24]
  [24] Dalmaschio C J, Mastelaro V R, Nascente P, Bettini J, Zotin J L, Longo E, Leite E R. J Colloid Interface Sci, 2010, 343: 256
25. [25]
  [25] Chary K V R, Reddy K R, Kishan G, Niemantsverdriet J W, Mestl G. J Catal, 2004, 226: 283
26. [26]
  [26] Al-Shihry S S, Halawy S A. J Mol Catal A, 1996, 113: 479
27. [27]
  [27] Humblot F, Candy J P, Le Peltier F, Didillon B, Basset J M. J Catal, 1998, 179: 459
28. [28]
  [28] Kaneko S, Arakawa T, Ohshima M, Kurokawa H, Miura H. Appl Catal A, 2009, 356: 80
29. [29]
  [29] Men Y, Yang M. Catal Commun, 2012, 22: 68
30. [30]
  [30] Delgado J J, Chen X, Tessonnier J P, Schuster M E, Del Rio E, Schlögl R, Su D S. Catal Today, 2010, 150: 49
31. [31]
  [31] Nederlof C, Kapteijn F, Makkee M. Appl Catal A, 2012, 417-418: 163
32. [32]
  [32] Zarubina V, Nederlof C, Van der Linden B, Kapteijn F, Heeres H J, Makkee M, Melian-Cabrera I. J Mol Catal A, 2014, 381: 179
33. [33]
  [33] Braga T P, Sales B M C, Pinheiro A N, Herrera W T, Baggio-Saitovitch E, Valentini A. Catal Sci Technol, 2011, 1: 1383
34. [34]
  [34] Pochamoni R, Narani A, Gurram V R B, Gudimella M D, Potharaju P S S P, Burri D R, Rao K S R. Indian J Chem Sect A, 2014, 53A: 493
35. [35]
  [35] Oganowski W, Hanuza J, Drulis H, Mista W, Macalik L. Appl Catal A, 1996, 133: 143
36. [36]
  [36] Irún O, Sadosche S A, Lasobras J, Soler J, Francés E, Herguido J, Menéndez M. Catal Today, 2013, 203: 53
37. [37]
  [37] Park M S, Vislovskiy V P, Chang J S, Shul Y G, Yoo J S, Park S E. Catal Today, 2003, 87: 205
38. [38]
  [38] Abello M C, Gomez M F, Ferretti O. Appl Catal A, 2001, 207: 421
39. [39]
  [39] Nederlof C, Talay G, Kapteijn F, Makkee M. Appl Catal A, 2012, 423-424: 59
40. [40]
  [40] Watanabe R, Sekine Y, Kojima J, Matsukata M, Kikuchi E. Appl Catal A, 2011, 398: 66
41. [41]
  [41] He X X, Fan C, Gu X Y, Zhou X G, Chen D, Zhu Y A. J Mol Catal A, 2011, 344: 53
42. [42]
  [42] Hanuza J, Jezowska-Trzebiatowska B, Oganowski W. J Mol Catal, 1978, 4: 271
43. [43]
  [43] Abello M C, Gomez M F, Ferretti O. Appl Catal A, 2001, 207: 421
44. [44]
  [44] Vedrine J C, Millet J M M, Volta J C. Catal Today, 1996, 32: 115
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Cu, Fe, or Ni doped molybdenum oxide supported on Al2O3 for the oxidative dehydrogenation of ethylbenzene

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通讯作者: 陈斌, bchen63@163.com

Cu, Fe, or Ni doped molybdenum oxide supported on Al₂O₃ for the oxidative dehydrogenation of ethylbenzene