DFT study of propane dehydrogenation on Pt catalyst: effects of step sites

ML Yang, YA Zhu, C Fan, ZJ Sui, D Chen… - Physical chemistry …, 2011 - pubs.rsc.org
Self-consistent periodic slab calculations based on gradient-corrected density functional
theory (DFT-GGA) have been conducted to examine the reaction network of propane …

Pt–Sn alloy phases and coke mobility over Pt–Sn/Al2O3 and Pt–Sn/ZnAl2O4 catalysts for propane dehydrogenation

BK Vu, MB Song, IY Ahn, YW Suh, DJ Suh… - Applied Catalysis A …, 2011 - Elsevier
Abstract Propane dehydrogenation on Pt–Sn/Al 2 O 3 and Pt–Sn/ZnAl 2 O 4 was performed,
and the Pt–Sn/ZnAl 2 O 4 catalyst showed a stronger tolerance for catalytic deactivation than …

XPS and EXAFS study of supported PtSn catalysts obtained by surface organometallic chemistry on metals: Application to the isobutane dehydrogenation

GJ Siri, JM Ramallo-López, ML Casella… - Applied Catalysis A …, 2005 - Elsevier
In this work, well defined alumina and silica supported Pt and PtSn catalysts were prepared
by surface organometallic reactions and were characterized by TEM, XPS and EXAFS …

Location and structure of coke generated over Pt–Sn/Al2O3 in propane dehydrogenation

BK Vu, MB Song, IY Ahn, YW Suh, DJ Suh… - Journal of industrial and …, 2011 - Elsevier
Pt and Pt–Sn/alumina catalysts were prepared by either an incipient wetness impregnation
or co-impregnation method, and their deactivation behavior, coke structure and coke …

Propane dehydrogenation over Pt–Sn/Rare-earth-doped Al2O3: Influence of La, Ce, or Y on the formation and stability of Pt–Sn alloys

BK Vu, MB Song, IY Ahn, YW Suh, DJ Suh, WIL Kim… - Catalysis today, 2011 - Elsevier
In this study, La, Ce, or Y has been successfully incorporated into the γ-Al2O3 framework to
improve the Pt dispersion. Moreover, La and Y formed a dispersed phase, while a large …

Dehydrogenation of alkane to light olefin over PtSn/θ-Al2O3 catalyst: Effects of Sn loading

MH Lee, BM Nagaraja, KY Lee, KD Jung - Catalysis Today, 2014 - Elsevier
Abstract Pt 0.5 Sn x. x/θ-Al 2 O 3 catalysts with different amount of tin (0.5, 0.75, 1.0 and 1.5
wt%) were prepared by a co-impregnation method. Propane dehydrogenation was …

Tin Modification on Ni/Al2O3: Designing Potent Coke‐Resistant Catalysts for the Dry Reforming of Methane

J Liu, H Peng, W Liu, X Xu, X Wang, C Li… - …, 2014 - Wiley Online Library
Abstract Sn‐modified Ni/Al2O3 catalysts for CH4 dry reforming were prepared by co‐
impregnation and two‐step impregnation methods and characterized by thermogravimetric …

Effect of support on the size and composition of highly dispersed Pt–Sn particles

L Bednarova, CE Lyman, E Rytter, A Holmen - Journal of Catalysis, 2002 - Elsevier
Platinum and tin deposited on γ-Al2O3, MgO, and Mg (Al) O supports were investigated by
CO chemisorption and analytical electron microscopy in the scanning transmission electron …

XPS and XAFS Pt L2,3-Edge Studies of Dispersed Metallic Pt and PtSn Clusters on SiO2 Obtained by Organometallic Synthesis:  Structural and Electronic …

JM Ramallo-López, GF Santori… - The Journal of …, 2003 - ACS Publications
In this work, well-defined silica-supported Pt and PtSn catalysts were prepared by surface
organometallic reactions and were characterized by EXAFS-XANES at the Pt L2, 3 edge and …

Effect of the addition of potassium and lithium in Pt–Sn/Al2O3 catalysts for the dehydrogenation of isobutane

M Tasbihi, F Feyzi, MA Amlashi, AZ Abdullah… - Fuel processing …, 2007 - Elsevier
Dehydrogenation of isobutane (iC4) to isobutene has recently received considerable
attention because of the increasing demand for methyl tertiary butyl ether (MTBE) and ethyl …