caa a22 4500 47576045X CHVBK 20180406123549.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1007/BF02496342 doi (NATIONALLICENCE)springer-10.1007/BF02496342 n -Alkane isomerization on heteropolyacids [Elektronische Daten] 1. The influence of acid-base properties of alumina systems on the state of supported 12-tungstophosphoric heteropolyacid in Pt-containing catalysts and their activity in n -pentane isomerization [A. Ivanov, T. Vasina, O. Masloboishchikova, E. Khelkovskaya-Sergeeva, L. Kustov, J. Houzvička] Acid-base properties of bulk 12-tungstophosphoric heteropolyacid (HPWA) and HPWA supported on alumina and fluorinated alumina were studied by DRIFT spectroscopy using adsorption of probe molecules. Catalytic properties of Pt-containing catalysts carried by these supports were studied inn-pentane isomerization. It was shown that the Pt/HPWA/Al2O3 system is almost inactive in isomerization as a result of the interaction of HPWA with basic sites of the alumina support. On the contrary, the presence of acidic sites in fluorinated alumina prevents HPWA destruction and favors the uniform distribution of HPWA on the support surface. As a result, enhancement of the activity and selectivity of the Pt/HPWA/Al2O3-F catalyst inn-pentane isomerization is observed. Kluwer Academic/Plenum Publishers, 2000 heteropolyacids nationallicence 12-tungstophosphoric heteropolyacid nationallicence isomerization nationallicence n -pentane nationallicence platinum nationallicence adsorption nationallicence acidity nationallicence probe molecules nationallicence basicity nationallicence IR spectroscopy nationallicence DRIFT spectroscopy nationallicence Ivanov A. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut Vasina T. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut Masloboishchikova O. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut Khelkovskaya-Sergeeva E. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut Kustov L. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut Houzvička J. Haldor Topsoe A/S, DK-2800, Lyngby, Denmark aut Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/10(2000-10-01), 1726-1731 1066-5285 49:10<1726 2000 49 11172 https://doi.org/10.1007/BF02496342 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02496342 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ivanov A. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Vasina T. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Masloboishchikova O. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Khelkovskaya-Sergeeva E. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Kustov L. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Houzvička J. Haldor Topsoe A/S, DK-2800, Lyngby, Denmark aut NATIONALLICENCE 773 0- Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/10(2000-10-01), 1726-1731 1066-5285 49:10<1726 2000 49 11172 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer