%0 Journal Article %1 WOS:000287666700020 %A Lima, Cleanio L %A de Sousa, Helvio S A %A Vasconcelos, Santiago J S %A Filho, Josue M %A Oliveira, Alcemira C %A de Sousa, Francisco F %A Oliveira, Alcineia C %C VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS %D 2011 %I SPRINGER %J REACTION KINETICS MECHANISMS AND CATALYSIS %K Catalysts} Characterization; Molecular sieves; {Sulfatation; %N 2 %P 487-500 %R 10.1007/s11144-010-0279-7 %T Effect of sulfatation on the physicochemical and catalytic properties of molecular sieves %V 102 %X Sulfated molecular sieves were synthesized and characterized by XRD, FTIR, chemical analyses, acidity measurements and N-2 adsorption-desorption isotherms. Sulfatation led to structural changes in the solid framework by increasing the acidity and accessibility of the acid sites. Bronsted and Lewis acid sites of mild to high strength improved the conversion of alcohols, but the selectivity was modest over sulfated FAU type Y, ZSM-5 and gamma-Al2O3 solids at temperatures lower than 200 A degrees C. The characteristics of the sulfated AlSBA-15 molecular sieve in terms of acidity, textural properties and accessibility possibly make this solid useful for catalytic reactions involving bulky organic compounds.

@article{WOS:000287666700020, abstract = {Sulfated molecular sieves were synthesized and characterized by XRD, FTIR, chemical analyses, acidity measurements and N-2 adsorption-desorption isotherms. Sulfatation led to structural changes in the solid framework by increasing the acidity and accessibility of the acid sites. Bronsted and Lewis acid sites of mild to high strength improved the conversion of alcohols, but the selectivity was modest over sulfated FAU type Y, ZSM-5 and gamma-Al2O3 solids at temperatures lower than 200 A degrees C. The characteristics of the sulfated AlSBA-15 molecular sieve in terms of acidity, textural properties and accessibility possibly make this solid useful for catalytic reactions involving bulky organic compounds.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS}, author = {Lima, Cleanio L and de Sousa, Helvio S A and Vasconcelos, Santiago J S and Filho, Josue M and Oliveira, Alcemira C and de Sousa, Francisco F and Oliveira, Alcineia C}, biburl = {https://www.bibsonomy.org/bibtex/2b3df8f605b63fff0badc3a54347ff748/ppgfis_ufc_br}, doi = {10.1007/s11144-010-0279-7}, interhash = {06375449007ed85bc57f17196e2bb1e9}, intrahash = {b3df8f605b63fff0badc3a54347ff748}, issn = {1878-5190}, journal = {REACTION KINETICS MECHANISMS AND CATALYSIS}, keywords = {Catalysts} Characterization; Molecular sieves; {Sulfatation;}, number = 2, pages = {487-500}, publisher = {SPRINGER}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Effect of sulfatation on the physicochemical and catalytic properties of molecular sieves}, tppubtype = {article}, volume = 102, year = 2011 }