Performances of Fe-[Al, B]MFI catalysts in benzene hydroxylation with N2O The role of zeolite defects as host sites for highly active iron species
作者： G. Centi , S. Perathoner , F. Pino , R. Arrigo , G. Giordano
DOI: 10.1016/J.CATTOD.2005.09.041
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摘要: Abstract The catalytic performances of Fe-[Al, B]MFI zeolites in benzene hydroxylation with N 2 O are studied as a function the nature T atom (Al, B) and compared characterization iron species determined by UV–vis diffuse reflectance spectroscopy. results indicate that mechanism for generation highly active this reaction is creation hydroxyl nests zeolite framework due to extra-framework migration atom. process favoured when B present atom, but occurs also case Fe Al atoms. Iron atoms migrate these defect sites forming 3+ isolated square pyramidal or distorted octahedral coordination. during catalyst pre-treatment well initial half an hour time on stream, leading increase phenol productivity step. A model presented. effect silica source preparation catalysts reported.
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sci-hub.se 参考文章(46)
S. Perathoner, F. Pino, G. Centi, G. Giordano, A. Katovic, J. B. Nagy, Benzene Selective Oxidation with N 2 O on Fe/MFI Catalysts: Role of Zeolite and Iron Sites on the Deactivation Mechanism Topics in Catalysis. ,vol. 23, pp. 125- 136 ,(2003) , 10.1023/A:1024880522329
A.K. Uriarte, G.I. Panov, L.V. Pirutko, V.S. Chernyavsky, Oxidation of benzene to phenol by nitrous oxide: Activity of iron in zeolite matrices of various composition Applied Catalysis A-general. ,vol. 227, pp. 143- 157 ,(2002) , 10.1016/S0926-860X(01)00932-2
A.M. Ferretti, C. Oliva, L. Forni, G. Berlier, A. Zecchina, C. Lamberti, Evolution of Extraframework Iron Species in Fe Silicalite: 2. Effect of Steaming Journal of Catalysis. ,vol. 208, pp. 83- 88 ,(2002) , 10.1006/JCAT.2002.3536
Patrick P. Notté, The AlphOx TM process or the one‐step hydroxylation of benzene into phenol by nitrous oxide. Understanding and tuning the ZSM‐5 catalyst activities Topics in Catalysis. ,vol. 13, pp. 387- 394 ,(2000) , 10.1023/A:1009015223793
Enrique Iglesia, István T. Horváth, Encyclopedia of catalysis Wiley. ,(2003)
G. Centi, G. Giordano, P. Fejes, A. Katovic, K. Lazar, J.B. Nagy, S. Perathoner, Active and spectator iron species in Fe/MFI catalysts for benzene selective hydroxylation with N2O Studies in Surface Science and Catalysis. ,vol. 154, pp. 2566- 2573 ,(2004) , 10.1016/S0167-2991(04)80525-1
Z. Sobalík, P. Kubánek, O. Bortnovsky, A. Vondrová, Z. Tvarůková, J.E. Šponer, B. Wichterlová, On the necessity of a basic revision of the redox properties of H-zeolites Studies in Surface Science and Catalysis. ,vol. 142, pp. 533- 540 ,(2002) , 10.1016/S0167-2991(02)80070-2
S. Perathoner, F. Pino, G. Centi, G. Giordano, A. Katovic, J.B. Nagy, K. Lazar, P. Fejes, One step benzene oxidation to phenol. Part II: Catalytic behavior of Fe-(Al)MFI zeolites Studies in Surface Science and Catalysis. ,vol. 142, pp. 503- 510 ,(2002) , 10.1016/S0167-2991(02)80066-0
L.M Kustov, A.L Tarasov, V.I Bogdan, A.A Tyrlov, J.W Fulmer, Selective oxidation of aromatic compounds on zeolites using N2O as a mild oxidant: A new approach to design active sites Catalysis Today. ,vol. 61, pp. 123- 128 ,(2000) , 10.1016/S0920-5861(00)00354-0
Nelly A. Kachurovskaya, Georgii M. Zhidomirov, Emiel J.M. Hensen, Rutger A. van Santen, Cluster Model DFT Study of the Intermediates of Benzene to Phenol Oxidation by N2O on FeZSM-5 Zeolites Catalysis Letters. ,vol. 86, pp. 25- 31 ,(2003) , 10.1023/A:1022642521434