caa a22 4500 46325323X CHVBK 20180405153346.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10562-007-9163-0 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9163-0 Characterization of Supported NiSO4 and Effect of TiO2-ZrO2 Composition on Catalytic Activity for Acid Catalysis [Elektronische Daten] [Jong Sohn, Si Lee] A series of catalysts, NiSO4/TiO2-ZrO2 having different TiO2-ZrO2 composition, for acid catalysis was prepared by the impregnation method using an aqueous solution of nickel sulfate. The addition of TiO2 to ZrO2 improved the surface area of the catalyst and enhanced its acidity remarkably because of the formation of new acid sites through the charge imbalance of Ti-O-Zr bonding. The binary oxide, TiO2-ZrO2 calcined above 600°C resulted in the formation of crystalline orthorhombic phase of ZrTiO4. Therefore, NiSO4/TiO2-ZrO2 calcined at 500°C exhibited a maximum catalytic activity for acid catalysis, and then the catalytic activity decreased with the calcination temperature. The correlation between catalytic activity and acidity held for both reaction, 2-propanol dehydration and cumene dealkylation. NiSO4 supported on 50TiO2-50ZrO2 (TiO2/ZrO2ratio=1) among TiO2-ZrO2 binary oxides exhibited the highest catalytic activity for acid catalysis. Springer Science+Business Media, LLC, 2007 NiSO4/TiO2-ZrO2 nationallicence Acidity nationallicence TiO2-ZrO2 composition nationallicence ZrTiO4 phase nationallicence Cumene dealkylation nationallicence 2-Propanol dehydration nationallicence Sohn Jong Department of Applied Chemistry, Engineering College, Kyungpook National University, 702-701, Taegu, Korea aut Lee Si Environment Research Team, Research Institute of Industrial Science and Technology, 790-330, Pohang, Korea aut Catalysis Letters Springer US; http://www.springer-ny.com 118/3-4(2007-10-01), 203-210 1011-372X 118:3-4<203 2007 118 10562 https://doi.org/10.1007/s10562-007-9163-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9163-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sohn Jong Department of Applied Chemistry, Engineering College, Kyungpook National University, 702-701, Taegu, Korea aut NATIONALLICENCE 700 1- Lee Si Environment Research Team, Research Institute of Industrial Science and Technology, 790-330, Pohang, Korea aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 118/3-4(2007-10-01), 203-210 1011-372X 118:3-4<203 2007 118 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer