Preparation and catalytic properties of polymer- and silica-supported bimetallic clusters

1979 ◽  
Vol 101 (18) ◽  
pp. 5436-5438 ◽  
Author(s):  
Ronald Pierantozzi ◽  
Kevin J. McQuade ◽  
Bruce C. Gates ◽  
Margit Wolf ◽  
Helmut Knoezinger ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Bimetallic Clusters

ChemInform Abstract: PREPARATION AND CATALYTIC PROPERTIES OF POLYMER- AND SILICA-SUPPORTED BIMETALLIC CLUSTERS

1979 ◽  
Vol 10 (51) ◽  
Author(s):  
R. PIERANTOZZI ◽  
K. J. MCQUADE ◽  
B. C. GATES ◽  
M. WOLF ◽  
H. KNOEZINGER ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Bimetallic Clusters

Catalytic reduction of SO2 by CO over Au4Pt2(CO)n and Au6Pt(CO)n clusters: a first-principles study

2017 ◽  
Vol 19 (43) ◽  
pp. 29278-29286 ◽  
Author(s):  
Wei-Feng Xie ◽  
Hao-Ran Zhu ◽  
Shi-Hao Wei ◽  
Da-Yin Hua
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Density Functional ◽  
Catalytic Properties ◽  
Catalytic Reduction ◽  
Density Functional Theory Calculations ◽  
Bimetallic Clusters ◽  
Functional Theory ◽  
First Principles Study ◽  
Gold Platinum

The catalytic properties of the magic gold–platinum bimetallic clusters (Au4Pt2 and Au6Pt) for the reduction of SO2 by CO, without or with preadsorbing CO molecules, are investigated using density functional theory calculations.

Microstructure and reactivity of small metal particles: The role of Ce additives

1992 ◽  
Vol 50 (1) ◽  
pp. 318-319
Author(s):  
L.D. Schmidt ◽  
K. R. Krause ◽  
J. M. Schwartz ◽  
X. Chu
Keyword(s):  
Atmospheric Pressure ◽  
Noble Metals ◽  
Mixed Oxides ◽  
Catalytic Properties ◽  
Chemical Shifts ◽  
Catalytic Converter ◽  
Structural Evolution ◽  
Single Particles ◽  
Small Metal Particles

The evolution of microstructures of 10- to 100-Å diameter particles of Rh and Pt on SiO2 and Al2O3 following treatment in reducing, oxidizing, and reacting conditions have been characterized by TEM. We are able to transfer particles repeatedly between microscope and a reactor furnace so that the structural evolution of single particles can be examined following treatments in gases at atmospheric pressure. We are especially interested in the role of Ce additives on noble metals such as Pt and Rh. These systems are crucial in the automotive catalytic converter, and rare earths can significantly modify catalytic properties in many reactions. In particular, we are concerned with the oxidation state of Ce and its role in formation of mixed oxides with metals or with the support. For this we employ EELS in TEM, a technique uniquely suited to detect chemical shifts with ∼30Å resolution.

Electron distribution change of small nickel particles encaged in X zeolite in presence of Ce3+ ions, related to their catalytic properties

1986 ◽  
Vol 83 ◽  
pp. 619-621 ◽  
Author(s):  
F. Vergand ◽  
B. Iraqi ◽  
C. Bonnelle ◽  
E. Ramaroson ◽  
M.F. Guilleux ◽  
...  
Keyword(s):  
Electron Distribution ◽  
Catalytic Properties ◽  
Distribution Change ◽  
Nickel Particles ◽  
X Zeolite
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