caa a22 4500 44538882X CHVBK 20180317143040.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s11144-010-0251-6 doi (NATIONALLICENCE)springer-10.1007/s11144-010-0251-6 Preparation, characterization and catalytic properties of titanium oxide nanoparticles coated with aluminum oxide [Elektronische Daten] [Neftalí Carreño, Edson Leite, Rafael Libanori, Luiz Probst, Humberto Fajardo] In the present study, TiO2 nanopowder was partially coated with Al2O3 precursors generated by a polymeric precursor method in aqueous solution. The system of nanocoated particles formed an ultra thin structure on the TiO2 nanoparticle surfaces, where the particle is the core and the nanocoating (additive) is the shell. The nanocoating process led to the obtainment of nanoparticles with important surface characteristics and catalytic behavior in the bioethanol dehydration reaction, with improved activity and particular selectivity in comparison to their non-coated analogs. Ethylene production was disfavored and selectivity toward acetaldehyde, hydrogen and ethane increased with increasing Al2O3 content in the catalysts. It is important to highlight that the TiO2-Al2O3 catalysts presented satisfactory values of selectivity toward hydrogen, in spite of the deactivation observed during the period of the test. Akadémiai Kiadó, Budapest, Hungary, 2010 Ethanol dehydration nationallicence Ethylene nationallicence Titania nanopowder nationallicence Nanocoating nationallicence Carreño Neftalí Departamento de Química Analítica e Inorgânica, Universidade Federal de Pelotas, 96010-900, Capao do Leao, RS, Brazil aut Leite Edson Departamento de Química, Universidade Federal de São Carlos, 13565-905, Sao Carlos, SP, Brazil aut Libanori Rafael Departamento de Química, Universidade Federal de São Carlos, 13565-905, Sao Carlos, SP, Brazil aut Probst Luiz Departamento de Química, Universidade Federal de Santa Catarina, 88040-900, Florianopolis, SC, Brazil aut Fajardo Humberto Instituto de Ciências Exatas e Biológicas, Departamento de Química, Universidade Federal de Ouro Preto, Campus Universitário s/n Bauxita, 35400-000, Ouro Preto, MG, Brazil aut Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 102/1(2011-02-01), 75-83 1878-5190 102:1<75 2011 102 11144 https://doi.org/10.1007/s11144-010-0251-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-010-0251-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Carreño Neftalí Departamento de Química Analítica e Inorgânica, Universidade Federal de Pelotas, 96010-900, Capao do Leao, RS, Brazil aut NATIONALLICENCE 700 1- Leite Edson Departamento de Química, Universidade Federal de São Carlos, 13565-905, Sao Carlos, SP, Brazil aut NATIONALLICENCE 700 1- Libanori Rafael Departamento de Química, Universidade Federal de São Carlos, 13565-905, Sao Carlos, SP, Brazil aut NATIONALLICENCE 700 1- Probst Luiz Departamento de Química, Universidade Federal de Santa Catarina, 88040-900, Florianopolis, SC, Brazil aut NATIONALLICENCE 700 1- Fajardo Humberto Instituto de Ciências Exatas e Biológicas, Departamento de Química, Universidade Federal de Ouro Preto, Campus Universitário s/n Bauxita, 35400-000, Ouro Preto, MG, Brazil aut NATIONALLICENCE 773 0- Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 102/1(2011-02-01), 75-83 1878-5190 102:1<75 2011 102 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer