Metal−Support Interactions in Zeolite-Supported Noble Metals:  Influence of Metal Crystallites on the Support Acidity

2006 ◽  
Vol 110 (10) ◽  
pp. 4937-4946 ◽  
Author(s):  
David Kubička ◽  
Narendra Kumar ◽  
Tapani Venäläinen ◽  
Hannu Karhu ◽  
Iva Kubičková ◽  
...  
Keyword(s):  
Noble Metals ◽  
Metal Support ◽  
Supported Noble Metals ◽  
Metal Support Interactions

scholarly journals Catalytic Reaction of Carbon Dioxide with Methane on Supported Noble Metal Catalysts

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 159
Author(s):  
András Erdőhelyi
Keyword(s):  
Noble Metal ◽  
Reaction Mechanisms ◽  
Noble Metals ◽  
Carbon Deposition ◽  
Metal Catalysts ◽  
Noble Metal Catalysts ◽  
Functional Mechanism ◽  
Metal Support ◽  
Supported Noble Metals ◽  
Main Components

The conversion of CO2 and CH4, the main components of the greenhouse gases, into synthesis gas are in the focus of academic and industrial research. In this review, the activity and stability of different supported noble metal catalysts were compared in the CO2 + CH4 reaction on. It was found that the efficiency of the catalysts depends not only on the metal and on the support but on the particle size, the metal support interface, the carbon deposition and the reactivity of carbon also influences the activity and stability of the catalysts. The possibility of the activation and dissociation of CO2 and CH4 on clean and on supported noble metals were discussed separately. CO2 could dissociate on metal surfaces, this reaction could proceed via the formation of carbonate on the support, or on the metal–support interface but in the reaction the hydrogen assisted dissociation of CO2 was also suggested. The decrease in the activity of the catalysts was generally attributed to carbon deposition, which can be formed from CH4 while others suggest that the source of the surface carbon is CO2. Carbon can occur in different forms on the surface, which can be transformed into each other depending on the temperature and the time elapsed since their formation. Basically, two reaction mechanisms was proposed, according to the mono-functional mechanism the activation of both CO2 and CH4 occurs on the metal sites, but in the bi-functional mechanism the CO2 is activated on the support or on the metal–support interface and the CH4 on the metal.

Growth kinetic control over MgFe2O4 to tune Fe occupancy and metal–support interactions for optimum catalytic performance

CrystEngComm ◽  
2021 ◽  
Vol 23 (13) ◽  
pp. 2538-2546
Author(s):  
Min Yang ◽  
Guangshe Li ◽  
Huixia Li ◽  
Junfang Ding ◽  
Yan Wang ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Growth Kinetic ◽  
Catalytic Performance ◽  
Growth Behavior ◽  
Kinetic Control ◽  
Size Dependent ◽  
Metal Support ◽  
Support Size ◽  
Metal Support Interactions ◽  
First Time

For the first time, the growth behavior with size-dependent Fe occupancies at different sites of MgFe2O4 was examined. Hybrid catalysts of Pt/MgFe2O4 with a support size of 20.6 nm exhibited an optimal performance of CO oxidation.

Metal–Support Interactions in Fe/ZrO2Catalysts for Hydrogenation of CO

1997 ◽  
Vol 167 (2) ◽  
pp. 573-575 ◽  
Author(s):  
Kaidong Chen ◽  
Yining Fan ◽  
Qijie Yan
Keyword(s):  
Metal Support ◽  
Metal Support Interactions ◽  
Hydrogenation Of Co
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