caa a22 4500 475843304 CHVBK 20180406123906.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1023/A:1027294302469 doi (NATIONALLICENCE)springer-10.1023/A:1027294302469 Chloride-induced modifications of the properties of rhodia/ceria catalysts [Elektronische Daten] [J. Soria, A. Martínez-Arias, J.M. Coronado, J.C. Conesa] A RhOx/CeO2 catalyst, prepared using RhCl3, is studied by EPR and IR spectroscopies, comparing the results with those obtained for Cl-free RhOx/CeO2. The substitution of basic hydroxyls by chlorides produces an extensive modification of the ceria surface, describable as formation of a cerium oxychloride surface layer, which improves the dispersion of rhodia. The more covalent character of Ce4+-O 2 − bonds formed on the surface, the absence of ceria-rhodia electron transfer and the stability of the surface against reoxidation are interpreted in terms of a Cl-induced lowering of the cerium electron energy levels. Kluwer Academic Publishers, 2000 cerium oxide nationallicence rhodium chloride nationallicence rhodium oxide nationallicence cerium oxychloride nationallicence superoxide nationallicence EPR nationallicence FTIR nationallicence rhodium dispersion nationallicence electronic interaction nationallicence Soria J. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut Martínez-Arias A. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut Coronado J.M. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut Conesa J.C. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 205-212 1022-5528 11-12:1-4<205 2000 11-12 11244 https://doi.org/10.1023/A:1027294302469 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1027294302469 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Soria J. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut NATIONALLICENCE 700 1- Martínez-Arias A. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut NATIONALLICENCE 700 1- Coronado J.M. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut NATIONALLICENCE 700 1- Conesa J.C. Instituto de Catálisis y Petroleoquímica, CSIC, Campus Universitario de Cantoblanco, 28049, Madrid, Spain aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 205-212 1022-5528 11-12:1-4<205 2000 11-12 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer