Performance of Pd supported on mesoporous molecular sieves on methane combustion

Abstract The performance of Pd-based catalysts supported on mesoporous molecular sieves with different pore arrangement (MCM-41 and MCM-48) was investigated for methane combustion. All molecular sieves showed to be thermally stable, evidencing the suitability of these materials as support for high temperature processes and motivated the efforts to exploit their use. Reaction data showed that silicate-based samples rendered more active catalysts than those prepared on aluminosilicate; activity was affected by monodimensional or three-dimensional pore arrangement. The use of molecular sieves in proton form led to an increase in the reaction rate in relation to the sodium form.

[1]  R. Bezman.  Characterization of acidic zeolites by thermometric titration , 1981 .

[2]  K. Eguchi,et al.  Low temperature oxidation of methane over Pd/SnO2 catalyst , 2000 .

[3]  Vasant R. Choudhary,et al.  Influence of PdO content and pathway of its formation on methane combustion activity , 2005 .

[4]  Xingyi Wang,et al.  Role of acidity of catalysts on methane combustion over Pd/ZSM-5 , 2007 .

[5]  P. Hu,et al.  The possibility of single C–H bond activation in CH4 on a MoO3-supported Pt catalyst: A density functional theory study , 2002 .

[6]  Jian‐guo Wang,et al.  Density functional theory study of methane activation over PdO/HZSM-5 , 2006 .

[7]  S. Matsumoto,et al.  Support effect of zeolite on the methane combustion activity of palladium , 2003 .

[8]  Anna Maria Venezia,et al.  Pd and PdAu on mesoporous silica for methane oxidation: Effect of SO2 , 2007 .

[9]  V. J. Fernandes,et al.  Acid Properties of SiMCM-41 Mesoporous Molecular Sieve , 2000 .

[10]  T. Ishihara,et al.  Palladium ion-exchanged SAPO-5 for a low temperature combustion of CH4 , 1997 .

[11]  T. Ishihara,et al.  Palladium Ion-exchanged SAPO-5 as a Catalyst for Low Temperature Combustion of Methane , 1994 .

[12]  P. Wierzchowski.  Kinetics of catalytic oxidation of carbon monoxide and methane combustion over alumina supported Ga2O3, SnO2 or V2O5 , 2003 .

[13]  Jeffery L. White,et al.  Identification of an adsorption complex between an alkane and zeolite active sites. , 2004, Journal of the American Chemical Society.

[14]  J. Ruiz,et al.  Determination of Total Acid in Palygorskite Chemically Modified by N-Butylamine Thermodesorption , 2002 .

[15]  H. O. Pastore,et al.  Methane combustion over Pd supported on MCM-41 , 2007 .

[16]  R. Mokaya,et al.  Facile and high yield synthesis of mesostructured MCM-48 silica crystals , 2003 .

[17]  M. Niwa,et al.  Activity of palladium loaded on zeolites in the combustion of methane , 1997 .

[18]  J. Goodwin,et al.  A comparative study of Pd/SiO2 and Pd/MCM-41 catalysts in liquid-phase hydrogenation , 2004 .

[19]  Koichi Eguchi,et al.  Low temperature oxidation of methane over Pd-based catalysts—effect of support oxide on the combustion activity , 2001 .

[20]  H. O. Pastore,et al.  Direct decomposition of nitric oxide on alumina-modified amorphous and mesoporous silica-supported palladium catalysts , 2006 .

[21]  Patrick Da Costa,et al.  Catalytic combustion of methane over mesoporous silica supported palladium , 2011 .

[22]  H. O. Pastore,et al.  Study on the formation of mesoporous molecular sieves in the presence of various anions , 1999 .

[23]  P. Wierzchowski,et al.  Catalysts for Combustion Containing Tin and Copper Overloaded on ZSM-5 Zeolite , 2002 .

[24]  Enrique Iglesia,et al.  Structure and Reactivity of PdOx/ZrO2Catalysts for Methane Oxidation at Low Temperatures , 1998 .

[25]  M. A. Fraga,et al.  Addition of La and Sn to alumina-supported Pd catalysts for methane combustion , 2004 .

[26]  Yan Liu,et al.  Al-MCM-41 supported palladium catalyst for methane combustion: Effect of the preparation methodologies , 2009 .

[27]  M. Flytzani-Stephanopoulos,et al.  Total Oxidation of Carbon Monoxide and Methane over Transition Metal Fluorite Oxide Composite Catalysts: I. Catalyst Composition and Activity , 1995 .

[28]  F. Bozon-Verduraz,et al.  Palladium-Alumina Catalysts: A Diffuse Reflectance Study. , 1993 .

[29]  Michel Primet,et al.  Complete oxidation of methane at low temperature over noble metal based catalysts: a review , 2002 .

[30]  L. Kiwi-Minsker,et al.  Pd/SiO2 catalysts: synthesis of Pd nanoparticles with the controlled size in mesoporous silicas , 2003 .

[31]  A. Corma,et al.  Synthesis of cubic mesoporous MCM-48 materials from the system SiO2:CTAOH/Br:H2O , 2001 .