Enhancement of CO hydrogenation activity on incompletely reduced nickel wire

1986 ◽  
Vol 3 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Sang Heup Moon ◽  
Kwang Euy Yoon ◽  
Young Gul Kim
Keyword(s):  
Co Hydrogenation ◽  
Nickel Wire ◽  
Hydrogenation Activity

Competitive Adsorption-Assisted Formation of One-Dimensional Cobalt Nanochains with High CO Hydrogenation Activity

2017 ◽  
Vol 121 (44) ◽  
pp. 24588-24593 ◽  
Author(s):  
Xin Liang ◽  
Zhibo Ren ◽  
Xiaolin Zhu ◽  
Qinwei Zhang ◽  
Donghai Mei ◽  
...  
Keyword(s):  
Competitive Adsorption ◽  
Co Hydrogenation ◽  
One Dimensional ◽  
Hydrogenation Activity

Quantitative Characterization of Fe/Al2O3 Catalysts. Part II: Reduction, Sulfidation, and CO/Hydrogenation Activity

1992 ◽  
Vol 46 (3) ◽  
pp. 489-497 ◽  
Author(s):  
Douglas P. Hoffmann ◽  
Marwan Houalla ◽  
Andrew Proctor ◽  
David M. Hercules
Keyword(s):  
Solid Solution ◽  
Particle Size ◽  
Co Hydrogenation ◽  
Active Phase ◽  
Alumina Support ◽  
Activity Data ◽  
Co Chemisorption ◽  
Hydrogenation Activity ◽  
Sulfided Catalysts ◽  
Two Phases

ESCA, Mössbauer spectroscopy, XRD, and CO chemisorption were used to study the reduction and sulfidation reactions of a series of 1 to 24 wt % Fe/Al2O3 catalysts. The speciation and particle size of the active phase were correlated with CO hydrogenation activity data. Two phases were previously identified in all oxidic catalysts: Fe2O3 and Fe+3 in solid solution with the alumina support. The Fe2O3 phase was found to reduce to Fe0 and sulfide to Fe1- xS. For the reduced and sulfided catalysts, Mössbauer was able to identify two iron species which were detected as a single solid solution species in the oxidic catalysts. The two species were found to differ by their location in the alumina support. One species is incorporated within the alumina matrix [Fe+2(A)] and the other species [Fe+2(B)] is present at the alumina surface. Both ESCA and CO chemisorption indicate that the Fe particle size increases with increasing iron loading. The turnover frequency (TOF) for CO hydrogenation appears to be a function of the extent of reduction and particle size of the metallic iron phase.

Effects of metal-organic framework-derived iron carbide phases for CO hydrogenation activity to hydrocarbons

Fuel ◽  
2020 ◽  
Vol 281 ◽  
pp. 118779
Author(s):  
Jae Min Cho ◽  
Byeong-Gi Kim ◽  
Gui Young Han ◽  
Jian Sun ◽  
Hae-Kwon Jeong ◽  
...  
Keyword(s):  
Co Hydrogenation ◽  
Metal Organic Framework ◽  
Iron Carbide ◽  
Hydrogenation Activity ◽  
Carbide Phases ◽  
Metal Organic ◽  
Organic Framework
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