caa a22 4500 606173358 CHVBK 20210128100732.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s11244-015-0471-0 doi (NATIONALLICENCE)springer-10.1007/s11244-015-0471-0 Factors Influencing Hydrogenation and Decomposition of H2O2 Over Pd-Au Catalysts Supported on Activated Carbon Cloth (ACC) [Elektronische Daten] [Davood Gudarzi, Ilkka Turunen, Markku Heinonen, Tapio Salmi] The bimetallic Pd-Au catalysts were prepared by simultaneous co-impregnation or consequent impregnation of supports by palladium and gold precursors. The catalytic reactions were performed batch-wise in a Parr stainless steel autoclave and methanol (220ml) was used as solvent. A series of experiments were conducted to study effects of several variables and conditions on the final H2O2 destruction activity of the catalysts. The factors studied where : the surface chemistry of the support, the amount and ratio of palladium and gold, the catalyst preparation method, the heat treatment of the catalysts in H2 and air, the reaction medium, and reaction temperature. As a conclusion, H2O2 destruction activities of the catalysts were strongly affected by the surface chemistry of the support and the amount and ratio of palladium and gold. Bimetallic catalysts prepared by co-impregnation of Pd and Au were less destructive than the corresponding ones prepared by consequent impregnation. The catalysts supported on activated carbon cloth (ACC) oxidized by nitric acid were considerably less destructive than the corresponding ones on non-oxidized ACC. H2O2 destruction activity of the catalysts on oxidized ACC were highly affected by the heat treatment in H2 and air at different temperatures. Using water instead of methanol as reaction medium substantially speeded up H2O2 destruction. Furthermore, increasing the reaction temperature accelerated destruction of H2O2. Catalytic destruction of H2O2 via its decomposition was considerably low as compared to hydrogenation. Springer Science+Business Media New York, 2015 Hydrogen peroxide nationallicence Pd-Au catalysts nationallicence Activated carbon cloth nationallicence Hydrogenation of H2O2 nationallicence Decomposition of H2O2 nationallicence Gudarzi Davood Department of Chemical Technology, Lappeenranta University of Technology, 53851, Lappeenranta, Finland aut Turunen Ilkka Department of Chemical Technology, Lappeenranta University of Technology, 53851, Lappeenranta, Finland aut Heinonen Markku Department of Physics and Astronomy, University of Turku, 20014, Turku, Finland aut Salmi Tapio Laboratory of Industrial Chemistry and Reaction Engineering, Åbo Akademi University, 20500, Turku, Finland aut Topics in Catalysis Springer US; http://www.springer-ny.com 58/14-17(2015-10-01), 1019-1035 1022-5528 58:14-17<1019 2015 58 11244 https://doi.org/10.1007/s11244-015-0471-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-015-0471-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gudarzi Davood Department of Chemical Technology, Lappeenranta University of Technology, 53851, Lappeenranta, Finland aut NATIONALLICENCE 700 1- Turunen Ilkka Department of Chemical Technology, Lappeenranta University of Technology, 53851, Lappeenranta, Finland aut NATIONALLICENCE 700 1- Heinonen Markku Department of Physics and Astronomy, University of Turku, 20014, Turku, Finland aut NATIONALLICENCE 700 1- Salmi Tapio Laboratory of Industrial Chemistry and Reaction Engineering, Åbo Akademi University, 20500, Turku, Finland aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/14-17(2015-10-01), 1019-1035 1022-5528 58:14-17<1019 2015 58 11244