Effects of structures of molybdenum catalysts on selectivity in gas-phase propylene oxidation

doi:10.1016/S1872-2067(15)60961-5

Abstract

Abstract:

Molybdenum-based catalysts for the gas-phase oxidation of propylene with air were investigated. Various types of silica-supported molybdenum oxide and molybdenum-bismuth mixed oxide catalysts were prepared from inorganic and organometallic molybdenum precursors using wet impregnation and physical vapor deposition methods. The epoxidation activities of the prepared catalysts showed direct correlations with their nanostructures, which were identified using transmission electron microscopy. The appearance of a partly or fully crystalline molybdenum oxide phase, which interacted poorly with the silica support, decreased the selectivity for propylene oxide formation to below 10%; non-crystalline octahedrally coordinated molybdenum species anchored on the support gave propylene oxide formations greater than 55%, with 11% propylene conversion. Electrochemical characterization of molybdenum oxides with various morphologies showed the importance of structural defects. Direct promotion by bismuth of the epoxidation reactivities over molybdenum oxides is disputed.

Key words: Propylene oxide, Epoxidation, Molybdenum oxide, Optical property, Electrochemical property

Martin Šustek, Blažej Horváth, Ivo Vávra, Miroslav Gál, Edmund Dobročka, Milan Hronec. Effects of structures of molybdenum catalysts on selectivity in gas-phase propylene oxidation[J]. Chinese Journal of Catalysis, 2015, 36(11): 1900-1909.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(15)60961-5

https://www.cjcatal.com/EN/Y2015/V36/I11/1900

References

[1] Nijhuis T A, Makkee M, Moulijn J A, Weckhuysen B M. Ind Eng Chem Res, 2006, 45: 3447
[2] Pang Y J, Chen X H, Xu C Z, Lei Y J, Wei K M. ChemCatChem, 2014, 6: 876
[3] Kizilkaya A C, Senkan S, Onal I. J Mol Catal A, 2010, 330: 107
[4] Shen K, Liu X H, Lu G Z, Miao Y X, Guo Y L, Wang Y Q, Guo Y. J Mol Catal A, 2013, 373: 78
[5] Monnier J R. Appl Catal A, 2001, 221: 73
[6] Zheng X, Zhang Q, Guo Y L, Zhan W C, Guo Y, Wang Y S, Lu G Z. J Mol Catal A, 2012, 357: 106
[7] Chu H, Yang L J, Zhang Q H, Wang Y. J Catal, 2006, 241: 225
[8] Suo Z H, Jin M S, Lu J Q, Wei Z B, Li C. J Nat Gas Chem, 2008, 17: 184
[9] Wu G Q, Wang Y Q, Wang L N, Feng W P, Shi H N, Lin Y, Zhang T, Jin X, Wang S H, Wu X X, Yao P X. Chem Eng J, 2013, 215-216: 306
[10] Liu T, Hacarlioglu P, Oyama S T, Luo M F, Pan X R, Lu J Q. J Catal, 2009, 267: 202
[11] Murata K, Liu Y Y, Mimura N, Inaba M. Catal Commun, 2003, 4: 385
[12] Hashem A M, Groult H, Mauger A, Zaghib K,Julien C M. J Power Sources, 2012, 219: 126
[13] Marin Flores O G, Ha S. Appl Catal A, 2009, 352: 124
[14] Horváth B, Hronec M, Vávra I, Šustek M, Kri?anová Z, Dérer J, Dobro?ka E. Catal Commun, 2013, 34: 16
[15] Song Z X, Mimura N, Bravo-Suárez J J, Akita T, Tsubota S, Oyama S T. Appl Catal A, 2007, 316: 142
[16] Sian T S, Reddy G B. Sol Energy Mater Sol Cells, 2004, 82: 375
[17] Wang L, Peng B, Peng L N, Guo X F, Xie Z K, Ding W P. Sci Rep, 2013, 3: 2881
[18] Balula S S, Bruno S M, Gomes A C, Valente A A, Pillinger M, Gonçalves I S, MacQuarrie D J, Clark J H. Inorg Chim Acta, 2012, 387: 234
[19] Nguyen H H P, Ohkita H, Mizushima T, Kakuta N. Catal Lett, 2013, 143: 902
[20] Bañares M A. Catal Today, 1999, 51: 319
[21] Rabette P, Olivier D. J Less Common Met, 1974, 36: 299
[22] Klinbumrung A, Thongtem T, Thongtem S. J Nanomater, 2012: 930763
[23] Tokarz-Sobieraj R, Hermann K, Witko M, Blume A, Mestl G, Schlögl R. Surf Sci, 2001, 489: 107
[24] Yuan S P, Wang J G, Li Y W, Peng S Y. Catal Today, 2000, 61: 243
[25] Collart O, Van Der Voort P, Vansant E F, Gustin E, Bouwen A, Schoemaker D, Ramachandra Rao R, Weckhuysen B M, Schoonheydt R A. Phys Chem Chem Phys, 1999, 1: 4099
[26] Balcar H, Mishra D, Marceau E, Carrier X, ?ilková N, Bastl Z. Appl Catal A, 2009, 359: 129
[27] Jeyakumar K, Chand D K. J Chem Sci, 2009, 121: 111
[28] Rempel K U, Williams-Jones A E, Migdisov A A. Geochim Cosmochim Acta, 2008, 72: 3074
[29] Cotton F A, Wilkinson G. Advanced Inorganic Chemistry. 5th ed. New York: John Wiley & Sons, 1988. 829
[30] Taylor M J, Jirong W, Rickard C E F. Polyhedron, 1993, 12: 1433
[31] Litinskii A O, Narushis Y P, Shatkovskaya D B. J Struct Chem, 1985, 26: 843
[32] Spahr M E, Novak P, Haas O, Nesper R. J Power Sources, 1995, 54: 346
[33] McEvoy T M, Stevenson K J, Hupp J T, Dang X J. Langmuir, 2003, 19: 4316
[34] Dong W, Mansour A N, Dunn B. Solid State Ionics, 2001, 144: 31
[35] Kongmark C, Martis V, Rubbens A, Pirovano C, Löfberg A, Sankar G, Bordes-Richard E, Vannier R N, Van Beek W. Chem Commun, 2009: 4850
[36] Liu Y W, Zhang X M, Suo J S. Chin J Catal (刘义武, 张小明, 索继栓. 催化学报), 2013, 34: 336
[37] Su J, Zhou J C, Liu C Y, Wang X S, Guo H C. Chin J Catal (苏际, 周军成, 刘春燕, 王祥生, 郭洪臣. 催化学报), 2010, 31: 1195