Anti-coke behavior of an alumina nanosheet supported Pt–Sn catalyst for isobutane dehydrogenation

2021 ◽  
Author(s):  
Xin-Qian Gao ◽  
Wei Song ◽  
Wen-Cui Li ◽  
An-Hui Lu
Keyword(s):  
Isobutane Dehydrogenation ◽  
Supported Platinum ◽  
Defect Sites ◽  
Catalytic Reactivity

Alumina nanosheet supported platinum-based catalysts exhibited excellent catalytic reactivity and stability with an anti-coke capacity in the isobutane dehydrogenation process due to the abundant defect sites and decreased acidity.

Synergistic effect between Sn and K promoters on supported platinum catalyst for isobutane dehydrogenation

2011 ◽  
Vol 20 (6) ◽  
pp. 639-646 ◽  
Author(s):  
Yiwei Zhang ◽  
Yuming Zhou ◽  
Lihui Wan ◽  
Mengwei Xue ◽  
Yongzheng Duan ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Platinum Catalyst ◽  
Isobutane Dehydrogenation ◽  
Supported Platinum ◽  
Supported Platinum Catalyst

THEORETICAL STUDY OF N2O ADSORPTION AND DECOMPOSITION AT REGULAR AND DEFECT SITES OF MgO (001) SURFACE

2003 ◽  
Vol 02 (01) ◽  
pp. 57-64 ◽  
Author(s):  
YI-JUN XU ◽  
JUN-QIAN LI ◽  
YONG-FAN ZHANG
Keyword(s):  
Oxygen Vacancy ◽  
Density Functional ◽  
Density Functional Method ◽  
Functional Method ◽  
Defect Sites ◽  
Surface Oxygen Vacancy ◽  
F Center ◽  
Catalytic Reactivity ◽  
Vacancy Site ◽  
Mgo Surface

The adsorption of N 2 O at regular and defect sites of MgO (001) surface has been studied systematically using cluster models embedded in a large array of point charges by density functional method. The calculated results show that the MgO (001) surface with oxygen vacancies exhibits high catalytic reactivity toward N 2 O adsorptive-decomposition at variance with the regular MgO surface or the surface with magnesium vacancies. Much elongation of O–N bond of N 2 O after adsorption at oxygen vacancy site with O end of N 2 O down indicates that O–N bond has been broken with concurrent production of N 2, leaving a regular site instead of the original oxygen vacancy site (F center). Besides, the MgO (001) surface with magnesium vacancies hardly exhibits catalytic reactivity. It can be concluded that N 2 O dissociation is likely occurred at MgO (001) surface oxygen vacancy sites, which is consistent with the generally accepted viewpoint in the experiment.

Isobutane Dehydrogenation over Supported Platinum Acid–Base AlGaPON Catalysts

2001 ◽  
Vol 202 (1) ◽  
pp. 1-13 ◽  
Author(s):  
S Delsarte ◽  
F Maugé ◽  
P Grange
Keyword(s):  
Acid Base ◽  
Isobutane Dehydrogenation ◽  
Supported Platinum

Modelling of catalytic reactivity of inhomogeneous surfaces in monomer-monomer reactions

2015 ◽  
Vol 20 (3) ◽  
pp. 455-468 ◽  
Author(s):  
Vladas Skakauskas ◽  
◽  
Pranas Katauskis ◽  
Keyword(s):  
Catalytic Reactivity

Application of Backside Photo and Thermal Emission Microscopy Techniques to Advanced Memory Devices

1997 ◽  
Author(s):  
S.-S. Lee ◽  
J.-S. Seo ◽  
N.-S. Cho ◽  
S. Daniel
Keyword(s):  
Thermal Emission ◽  
Test Cases ◽  
Memory Devices ◽  
Front Side ◽  
Emission Analysis ◽  
Intensity Attenuation ◽  
Analysis Techniques ◽  
Defect Sites ◽  
Emission Microscopy ◽  
Microscopy Techniques

Abstract Both photo- and thermal emission analysis techniques are used from the backside of the die colocate defect sites. The technique is important in that process and package technologies have made front-side analysis difficult or impossible. Several test cases are documented. Intensity attenuation through the bulk of the silicon does not compromise the usefulness of the technique in most cases.

Electrochemical oxidation of CO over tin oxide supported platinum catalysts

2006 ◽  
Vol 155 (2) ◽  
pp. 152-156 ◽  
Author(s):  
Toshiaki Matsui ◽  
Katsuhiko Fujiwara ◽  
Takeoh Okanishi ◽  
Ryuji Kikuchi ◽  
Tatsuya Takeguchi ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Tin Oxide ◽  
Platinum Catalysts ◽  
Oxidation Of Co ◽  
Supported Platinum ◽  
Supported Platinum Catalysts

scholarly journals Explosive Molecule Sensing at Lattice Defect Sites in Metallic Carbon Nanotubes

2021 ◽  
Author(s):  
Manasi Doshi ◽  
Eric Paul Fahrenthold
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Experimental Research ◽  
Gas Sensing ◽  
Lattice Defect ◽  
Sensing Mechanism ◽  
Defect Sites ◽  
Chemiresistive Sensing ◽  
Hazardous Gas

Explosives and hazardous gas sensing using carbon nanotube (CNT) based sensors has been a focus of considerable experimental research. The simplest sensors have employed a chemiresistive sensing mechanism, and rely...

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