caa a22 4500 467952078 CHVBK 20180405193743.0 cr unu---uuuuu 170328e20050101xx s 000 0 eng 10.1007/PL00021995 doi (NATIONALLICENCE)springer-10.1007/PL00021995 (NATIONALLICENCE)springer-10.1007/s10975-005-0061-4 Surface acid sites of H3PW12O40 as studied by the adsorption of stable nitroxyl radicals [Elektronische Daten] [M. Timofeeva, A. Ayupov, A. Volodin, Yu. Pak, G. Volkova, G. Echevskii] The surface acidity of H3PW12O40 and NaxH3-xPW12O40(x = 1-3) was studied using the adsorption of 2,2′,6,6′-tetramethyl-4-oxopiperidine-1-oxyl (TEMPON) and 2,2′,6,6′-tetramethyl-4-hydroxypiperidine-1-oxyl (TEMPOL) radicals. It was found that the amount of surface proton sites determined from the adsorption of TEMPON decreased with the degree of substitution of Na+ cations for protons. A correlation between amount of strong surface proton sites and catalytic activity of NaxH3-xPW12O40(x = 0-3) in the dealkylation reaction of 2,6-di-tert-butyl-4-methylphenol was found. MAIK "Nauka/Interperiodica”, 2005 Timofeeva M. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut Ayupov A. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut Volodin A. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut Pak Yu Novosibirsk State University, 630090, Novosibirsk, Russia aut Volkova G. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut Echevskii G. Novosibirsk State University, 630090, Novosibirsk, Russia aut Kinetics and Catalysis Nauka/Interperiodica 46/1(2005-01-01), 123-127 0023-1584 46:1<123 2005 46 10975 https://doi.org/10.1007/PL00021995 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00021995 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Echevskii G. Novosibirsk State University, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Timofeeva M. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Ayupov A. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Volodin A. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Pak Yu Novosibirsk State University, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Volkova G. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut NATIONALLICENCE 773 0- Kinetics and Catalysis Nauka/Interperiodica 46/1(2005-01-01), 123-127 0023-1584 46:1<123 2005 46 10975 NATIONALLICENCE 700 1- Echevskii G. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk, Russia aut NATIONALLICENCE 856 40 https://doi.org/10.1007/s10975-005-0061-4 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer