Abstract
Catalytic hydrogenation of m-dinitrobenzene over Pt/TiO2–Al2O3 catalysts was investigated. The effect of the enrichment of TiO2 was analyzed. The results showed that the increase in TiO2 content produced an enhancement in the activity of the catalyst. In these consecutive reactions, both rate constants (k1 and k2) were determined and it whatever the catalyst, k1 is higher than k2. The limiting step of the reaction was the transformation of m-nitroaniline to m-phenylenediamine. This behavior was explained by the modification in the acceptor-donor electron character of the group in the meta position.
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Figueras F, Coq B (2001) J Mol Catal A 173:223
Downing R, Kunkeler P, Van Bekkum J (1997) Catal Today 37:121
Telkar M, Nadgeri J, Rode C, Chaudhari R (2005) Appl Catal A Gen 295:23
Wegener G, Brandt M, Duda L, Hofmann J, Klesczewski B, Koch D, Kumpf R, Orzesek H, Pirkl H, Six C, Steinlein C, Weisbeck M (2001) Appl Catal A Gen 221:303
Yingxin L, Jixiang C, Jiyan Z Chin (2007) J Chem Eng 15: 63
Rojas H, Borda G, Reyes P, Brijaldo M, Valencia J (2011) J Chil Chem Soc 56:793
Borda G, Rojas H, Murcia J, Fierro JLG, Reyes P, Oportus M (2007) React Kinet Catal Lett 92:369
Medvedovski E (2002) J Am Ceram Soc Bull 81:27
Seo J, Youn M, Song I (2007) J Mol Catal A 268:9
Seo J, Youn M, Song I (2007) J Power Sources 168:251
Qi H, Fan Y, Xing W, Winnubst L (2010) J Eur Ceram Soc 30:1317
Zawrah MF, Schneider J, Zum KH (2002) Mater Sci Eng A 332:167
Rojas H, Cubillos J, Martínez J, Guerrero D, Reyes P (2012) Curr Org Chem 16:2770
Hoffmann H, Staudt P, Costa T, Moro C, Benvenutti E (2002) Surf Interface Anal 33:631
Fogler HS (1999) Elements of chemical reaction engineering. Prentice Hall, New Jersey
Rodriguez V, Zanella R, Angel G, Gomez R (2008) J Mol Catal A 281:93
Montes F, Getton P, Vong W, Sermon A (1997) J Sol Gel Sci Technol 8:131
Reyes P, Rojas H, Borda G, Martínez JJ, Valencia J (2008) J Mol Catal A Chem 286:70
Choi J, Kim J, Sang K, Gyu T (2008) Powder Technol 181:83
Li J, Zhu Y, Ke R, Hao J (2008) Appl Catal B Environmental 80:202
Reyes P, Rojas H, Fierro JLG (2003) Appl Catal A Gen 248:59
Passos F, Aranda D, Soares R, Schmal M (1998) Catal Today 43:3
Valdez R, Pawelec B, Quintana J, Olivas A (2013) Fuel 105:668
Rojas H, Borda G, Brijaldo M, Reyes P, Valencia J (2012) Reac Kinet Mech Cat 105:271
Reyes P, Salinas D, Campos C, Oportus M, Murcia J, Rojas H, Borda G, Fierro JLG (2010) Qui Nova 33:777
Corma A, Serna P, Concepción P, Calvino J (2008) J Am Chem Soc 130:8748
Shimizu K, Miyamoto Y, Kawasaki T, Tanji T, Tai Y, Satsuma A (2009) J Phys Chem C 113:17803
Campos CH, Torres C, Oportus M, Peña MA, Fierro JLG, Reyes P (2013) Catal Today 213:93
Hammett LP (1937) J Am Chem Soc 59:96
Jaffé HH (1953) Chem Rev 53:191
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Brijaldo, M.H., Passos, F.B., Rojas, H.A. et al. Hydrogenation of m-Dinitrobenzene Over Pt Supported Catalysts on TiO2–Al2O3 Binary Oxides. Catal Lett 144, 860–866 (2014). https://doi.org/10.1007/s10562-014-1218-4
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DOI: https://doi.org/10.1007/s10562-014-1218-4