scholarly journals Catalytic Activity for Methanol Synthesis of Zinc Oxide-Chromium Oxide-Copper Oxide Catalysts and its Structural Dependency

1960 ◽  
Vol 33 (3) ◽  
pp. 358-363 ◽  
Author(s):  
Yoshisada Ogino ◽  
Masaaki Oba ◽  
Hiroshi Uchida
Keyword(s):  
Zinc Oxide ◽  
Catalytic Activity ◽  
Copper Oxide ◽  
Chromium Oxide ◽  
Methanol Synthesis ◽  
Oxide Catalysts

Kinetics of Methanol Synthesis from Carbon Dioxide Hydrogenation over Copper–Zinc Oxide Catalysts

2017 ◽  
Vol 56 (45) ◽  
pp. 13133-13145 ◽  
Author(s):  
Jean-François Portha ◽  
Ksenia Parkhomenko ◽  
Kilian Kobl ◽  
Anne-Cécile Roger ◽  
Sofiane Arab ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Zinc Oxide ◽  
Methanol Synthesis ◽  
Oxide Catalysts ◽  
Carbon Dioxide Hydrogenation ◽  
Copper Zinc ◽  
Copper Zinc Oxide ◽  
Kinetics Of

A Study of Copper-Chromium Oxide Catalysts and a Method to Determine Catalytic Activities

1963 ◽  
Vol 7 ◽  
pp. 229-239
Author(s):  
M. Stammler ◽  
M. Pyzyna
Keyword(s):  
Catalytic Activity ◽  
Chromium Oxide ◽  
Oxide Catalysts ◽  
Linear Absorption ◽  
X Ray ◽  
Chromium Spinel ◽  
Copper Chromium ◽  
The Difference ◽  
Two Phases ◽  
Chromium Oxide Catalysts

AbstractAn extensive investigation of chemical composition, particle size, and surface area of copper-chromium oxide catalysts has been made. The two phases present in the activated material are copper oxide (CuO) and copper-chromium spinel (CuCr2O4). The crystallite size of the CuO phase (determined by X-ray diffraction line broadening) can be correlated with the catalytic activity measured on a CO-CO2 oxidation reaction. The catalytic activity of the oxide catalyst can be expressed as a function of the X-ray fluorescence intensity of the Cu Kα line even on changing the absolute copper concentration up to 3%. An attempt is made to explain this phenomenon by the heterogeneity effect caused by the difference in the linear absorption factors for the Cu Kα radiation in the system CuO-CuCr2O4.

Active centres on chromium oxide-zinc oxide catalysts for dehydrogenation

1976 ◽  
Vol 41 (12) ◽  
pp. 3563-3571 ◽  
Author(s):  
M. Kraus ◽  
Z. Žitný ◽  
D. Mihajlova ◽  
A. Andreev
Keyword(s):  
Zinc Oxide ◽  
Chromium Oxide ◽  
Oxide Catalysts ◽  
Active Centres
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