Very low rate constants of bimolecular CO adsorption on anionic gold clusters: Implications for catalytic activity

2003 ◽  
Vol 5 (6) ◽  
pp. 1213-1218 ◽  
Author(s):  
Iulia Balteanu ◽  
O. Petru Balaj ◽  
Brigitte S. Fox ◽  
Martin K. Beyer ◽  
Zdeněk Bastl ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rate Constants ◽  
Co Adsorption ◽  
Gold Clusters ◽  
Low Rate

Surface functionalization: an efficient alternative for promoting the catalytic activity of closed shell gold clusters

2020 ◽  
Vol 22 (40) ◽  
pp. 23351-23359
Author(s):  
Krati Joshi ◽  
Sailaja Krishnamurty ◽  
Manzoor Ahmad Dar
Keyword(s):  
Catalytic Activity ◽  
Surface Functionalization ◽  
Closed Shell ◽  
Gold Clusters ◽  
Efficient Alternative ◽  
Catalytic Behaviour

Surface functionalization induced catalytic behaviour in closed shell gold clusters.

Influence of the Support and the Size of Gold Clusters on Catalytic Activity for Glucose Oxidation

2008 ◽  
Vol 47 (48) ◽  
pp. 9265-9268 ◽  
Author(s):  
Tamao Ishida ◽  
Naoto Kinoshita ◽  
Hiroko Okatsu ◽  
Tomoki Akita ◽  
Takashi Takei ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Glucose Oxidation ◽  
Gold Clusters

Theoretical Insights on O2and CO Adsorption on Neutral and Positively Charged Gold Clusters

2006 ◽  
Vol 110 (25) ◽  
pp. 12240-12248 ◽  
Author(s):  
Antonio Prestianni ◽  
Antonino Martorana ◽  
Frédéric Labat ◽  
Ilaria Ciofini ◽  
Carlo Adamo
Keyword(s):  
Co Adsorption ◽  
Gold Clusters ◽  
Positively Charged

Arups Studies of the Interaction of Co with the Interface States for Strained-Layer Cu on Ru 0001)

1986 ◽  
Vol 83 ◽  
Author(s):  
J. E. Houston ◽  
C. H. F. Peden ◽  
P. J. Feibelman ◽  
D. R. Hamann
Keyword(s):  
Catalytic Activity ◽  
Binding Energy ◽  
Electronic Properties ◽  
Tensile Strain ◽  
Co Adsorption ◽  
Surface States ◽  
Direct Interaction ◽  
Interface States ◽  
Adsorption Properties ◽  
Chemical Behavior

ABSTRACTDuring the growth of the first monolayer, Cu has been shown to form in 2d islands pseudomorphic to the Ru 0001) surface under a tensile strain of -6%. The chemical behavior of such films has been found to be unlike that of either of the pure elements both from the standpoint of catalytic activity and molecular adsorption properties. In addition, these strainedlayer films have unique electronic properties. Specifically, we have identified a set of interface and surface states near the K point in the surface Brillioun zone. Here are shown new results concerning the behavior of the interface states with respect to CO adsorption. Specifically, CO is found to attenuate all Cu/Ru ARUPS structures except those due to the antibonding components of the interface states and these components move to higher binding energy with CO coverage. An analysis of these results, based on the properties of the interface states, indicates that there is negligible direct interaction between the CO orbitals and the metal d states. The increased bonding that is seen for CO on Cu/Ru compared to CO on Cu is suggested to result from an enchanced polarizability of the Cu 4s states due to the proximity of the Ru substate.

scholarly journals Features of Hydrogen Reduction of Fe(CN)63− Ions in Aqueous Solutions: Effect of Hydrogen Dissolved in Palladium Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2587
Author(s):  
Roman Solovov ◽  
Boris Ershov
Keyword(s):  
Aqueous Solution ◽  
Catalytic Activity ◽  
Catalytic Reaction ◽  
Rate Constants ◽  
Palladium Nanoparticles ◽  
Hydrogen Reduction ◽  
Specific Rate ◽  
Hydrogen Saturation ◽  
Palladium Catalyzed ◽  
Catalyzed Reactions

Preliminary saturation of 2.6 nm palladium nanoparticles with hydrogen accelerates the reduction of Fe(CN)63− ions in aqueous solution three to four-fold. An analytical equation was derived describing the hydrogen saturation of palladium nanoparticles and the dependence of their catalytic activity on the hydrogen content in the metal. The specific rate constants of reduction do not depend on the content of palladium nanoparticles in the solution. A change in the temperature and pH or stirring of the solution do not affect the rate of catalytic reaction. Approaches to optimization of palladium-catalyzed reactions involving hydrogen are substantiated.

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