Effect of pH in the preparation of ZnFe2O4 for oxidative dehydrogenation of n-butene to 1,3-butadiene: Correlation between catalytic performance and surface acidity of ZnFe2O4

2008 ◽  
Vol 9 (6) ◽  
pp. 1137-1142 ◽  
Author(s):  
Howon Lee ◽  
Ji Chul Jung ◽  
Heesoo Kim ◽  
Young-Min Chung ◽  
Tae Jin Kim ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Surface Acidity ◽  
Catalytic Performance ◽  
Effect Of Ph

Valence variation of phase-pure M1 MoVNbTe oxide by plasma treatment for improved catalytic performance in oxidative dehydrogenation of ethane

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91295-91301 ◽  
Author(s):  
Xin Chen ◽  
Qianli Yang ◽  
Bozhao Chu ◽  
Hang An ◽  
Yi Cheng
Keyword(s):  
Surface Modification ◽  
Metal Oxide ◽  
Plasma Treatment ◽  
Oxidative Dehydrogenation ◽  
Oxidation State ◽  
Active Sites ◽  
Oxygen Plasma ◽  
Catalyst Surface ◽  
Catalytic Performance ◽  
Phase Pure

This work presents a new method of catalyst surface modification by using oxygen plasma to change the oxidation state of active sites in metal oxide catalysts.

Effect of calcination temperature on the catalytic performance of Co9Fe3Bi1Mo12O51 in the oxidative dehydrogenation of n-butene to 1,3-butadiene

2008 ◽  
Vol 9 (10) ◽  
pp. 2059-2062 ◽  
Author(s):  
Ji Chul Jung ◽  
Howon Lee ◽  
Heesoo Kim ◽  
Sunyoung Park ◽  
Young-Min Chung ◽  
...  
Keyword(s):  
Calcination Temperature ◽  
Oxidative Dehydrogenation ◽  
Catalytic Performance

Effect of Bi on catalytic performance and stability of MoVTeNbO catalysts in oxidative dehydrogenation of ethane

2017 ◽  
Vol 534 ◽  
pp. 58-69 ◽  
Author(s):  
E.V. Ishchenko ◽  
R.V. Gulyaev ◽  
T.Yu. Kardash ◽  
A.V. Ishchenko ◽  
E.Yu. Gerasimov ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Catalytic Performance ◽  
Oxidative Dehydrogenation Of Ethane

scholarly journals Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation

2018 ◽  
Vol 16 (6) ◽  
Author(s):  
Aline Villarreal ◽  
Gabriella Garbarino ◽  
Paola Riani ◽  
Aida Gutiérrez Alejandre ◽  
Jorge Ramírez ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Active Sites ◽  
Catalytic Performance ◽  
Redox Behavior ◽  
Acid Base ◽  
Pure Alumina ◽  
Molybdenum Catalyst ◽  
Al2o3 Catalyst ◽  
Dehydrogenation Of Ethanol

The influence of incorporating a small amount of silica on the catalytic performance of MoO3/Al2O3 catalyst was studied. Molybdenum supported on pure alumina and 5% SiO2-Al2O3 supports were synthesized. The catalysts were characterized by XRD, Raman, UV-Vis and IR spectroscopies, FE-SEM microscopy, and their activity was evaluated in the oxidative dehydrogenation of ethanol to acetaldehyde. Molybdenum supported on pure alumina gives a 74% yield to acetaldehyde (at 573 K) due to the generation of oxy-dehydrogenation active sites by molybdenum and to the decrement of the alumina dehydration sites. For the molybdenum catalyst supported on silica-containing alumina, the molybdenum species were displaced from the strongest alumina’s acid-base couples, located on nanoparticles edges, corners and defects, to weaker ones located on plane faces causing the rise of weakly bonded species with less active redox behavior.  

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