Methane Activation on Bimetallic Catalysts: Properties and Functions of Surface Ni−Ag Alloy

ChemCatChem ◽  
2019 ◽  
Vol 11 (15) ◽  
pp. 3401-3412 ◽  
Author(s):  
Anh Hoang Dam ◽  
Hongmin Wang ◽  
Roya Dehghan‐Niri ◽  
Xiaofeng Yu ◽  
John C. Walmsley ◽  
...  
Keyword(s):  
Bimetallic Catalysts ◽  
Methane Activation

scholarly journals Experimental and theoretical investigation of oxidative methane activation on Pd–Pt catalysts

RSC Advances ◽  
2019 ◽  
Vol 9 (20) ◽  
pp. 11385-11395
Author(s):  
Wenjie Qi ◽  
Zehao Huang ◽  
Zheming Chen ◽  
Lijuan Fu ◽  
Zhigang Zhang
Keyword(s):  
Density Functional Theory ◽  
Theoretical Investigation ◽  
Active Site ◽  
Bimetallic Catalysts ◽  
Density Functional ◽  
Methane Activation ◽  
Pt Catalysts ◽  
Functional Theory ◽  
Rate Determining Step

Density functional theory and measurements of rate are used to provide evidence for the rate determining step and requirements of the active site for CH4 combustion on Pd–Pt bimetallic catalysts in five different distinct kinetic regimes.

Methane activation by heteronuclear diatomic AuRh+ cation: comparison with homonuclear Au2+ and Rh2+

2020 ◽  
Vol 22 (11) ◽  
pp. 6231-6238 ◽  
Author(s):  
Meng-Meng Wang ◽  
Yan-Xia Zhao ◽  
Xun-Lei Ding ◽  
Wei Li ◽  
Sheng-Gui He
Keyword(s):  
Bimetallic Catalysts ◽  
Methane Activation ◽  
Doping Effect

Heteronuclear diatomic AuRh+ cation exhibits higher reactivity than homonuclear Au2+ and possible higher selectivity than Rh2+ in reactions with methane, showing an interesting doping effect in bimetallic catalysts.

Structure and composition of metal particles in Pt-Sn/Al2O3 bimetallic catalysts

1990 ◽  
Vol 48 (4) ◽  
pp. 278-279
Author(s):  
A. Sachdev ◽  
J. Schwank
Keyword(s):  
Bimetallic Catalysts ◽  
Bimetallic Catalyst ◽  
Size Structure ◽  
High Surface ◽  
High Surface Area ◽  
Metal Particles ◽  
Alloy Formation ◽  
Particle Size Range ◽  
Oxide Supports ◽  
Petroleum Fractions

Platinum - tin bimetallic catalysts have been primarily utilized in the chemical industry in the catalytic reforming of petroleum fractions. In this process the naphtha feedstock is converted to hydrocarbons with higher octane numbers and high anti-knock qualities. Most of these catalysts contain small metal particles or crystallites supported on high surface area insulating oxide supports. The determination of the structure and composition of these particles is crucial to the understanding of the catalytic behavior. In a bimetallic catalyst it is important to know how the two metals are distributed within the particle size range and in what way the addition of a second metal affects the size, structure and composition of the metal particles. An added complication in the Pt-Sn system is the possibility of alloy formation between the two elements for all atomic ratios.

Methane activation by ZSM-5-supported transition metal centers

2021 ◽  
Author(s):  
Daniyal Kiani ◽  
Sagar Sourav ◽  
Yadan Tang ◽  
Jonas Baltrusaitis ◽  
Israel E. Wachs
Keyword(s):  
Transition Metal ◽  
Methane Activation ◽  
Group V ◽  
Metal Centers ◽  
Methane Dehydroaromatization

The literature on methane dehydroaromatization (MDA) to benzene using ZSM-5 supported, group V–VIII transition metal-based catalysts (MOx/ZSM-5) is critically reviewed with a focus on in situ and operando molecular insights.

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