A+1Nb5+O3 (A = Li, Na, K) Perovskites with Different Fine Structures for Oxidative Coupling of Methane: Tracing the Crystalline Phase Effect on the Surface Active Sites

2021 ◽  
Author(s):  
Junwei Xu ◽  
Ying Gong ◽  
Zhixuan Zhang ◽  
Qiyao Xiao ◽  
Xianglan Xu ◽  
...  
Keyword(s):  
Crystalline Phase ◽  
Oxidative Coupling ◽  
Active Sites ◽  
Oxidative Coupling Of Methane ◽  
Phase Effect ◽  
Fine Structures ◽  
Surface Active

scholarly journals A Combined Computational and Experimental Study of Methane Activation during Oxidative Coupling of Methane (OCM) by Surface Metal Oxide Catalysts

2021 ◽  
Author(s):  
Daniyal Kiani ◽  
Sagar Sourav ◽  
Jonas Baltrusaitis ◽  
Israel E Wachs
Keyword(s):  
Experimental Study ◽  
Metal Oxide ◽  
Oxidative Coupling ◽  
Active Sites ◽  
Computational Models ◽  
Oxidative Coupling Of Methane ◽  
Catalytic Active Sites ◽  
Surface Metal ◽  
Heterolytic Dissociation ◽  
First Time

The experimentally validated computational models developed herein, for the first time, show that Mn-promotion does not enhance the activity of the surface Na2WO4 catalytic active sites for CH4 heterolytic dissociation...

Effect of Mg substitution on LaTi1−xMgxO3+δ catalysts for improving the C2 selectivity of the oxidative coupling of methane

2021 ◽  
Author(s):  
Larissa B. Lopes ◽  
Luiz H. Vieira ◽  
José M. Assaf ◽  
Elisabete M. Assaf
Keyword(s):  
Active Site ◽  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Site Distribution ◽  
Surface Active ◽  
Mg Substitution

Mg substitution on B sites of La2Ti2O7 perovskites promoted changes in the surface active-site distribution leading to improvements in the C2 selectivity during the oxidative coupling of methane.

Synthesis and molecular structure of model silica-supported tungsten oxide catalysts for oxidative coupling of methane (OCM)

2020 ◽  
Vol 10 (10) ◽  
pp. 3334-3345 ◽  
Author(s):  
Daniyal Kiani ◽  
Sagar Sourav ◽  
Israel E. Wachs ◽  
Jonas Baltrusaitis
Keyword(s):  
Molecular Structure ◽  
Tungsten Oxide ◽  
Crystalline Phase ◽  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Oxide Catalysts ◽  
Dispersed Phase

Catalysts with only dispersed phase Na–WO4 sites where Na/W < 2 are slightly less active but significantly more C2 selective than the traditional Na2WO4/SiO2 catalysts that contain a crystalline phase where Na/W = 2.

Nature of active sites in the oxidative coupling of methane to ethane over Li/MgO catalysts

1993 ◽  
Vol 11 (4) ◽  
pp. 2174-2178 ◽  
Author(s):  
Ming‐Cheng Wu ◽  
Charles M. Truong ◽  
Kent Coulter ◽  
D. Wayne Goodman
Keyword(s):  
Oxidative Coupling ◽  
Active Sites ◽  
Oxidative Coupling Of Methane

The nature, role and fate of surface active sites in Li/MgO oxidative coupling catalysts

1989 ◽  
Vol 4 (3-4) ◽  
pp. 301-310 ◽  
Author(s):  
C. Mirodatos ◽  
G.A. Martin ◽  
J.C. Bertolini ◽  
J. Saint-Just
Keyword(s):  
Oxidative Coupling ◽  
Active Sites ◽  
Surface Active
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