Predicting High-Temperature Decomposition of Lithiated Graphite: Part II. Passivation Layer Evolution and the Role of Surface Area

2018 ◽  
Vol 165 (16) ◽  
pp. A3891-A3902 ◽  
Author(s):  
Randy C. Shurtz ◽  
Jeffrey D. Engerer ◽  
John C. Hewson
Keyword(s):  
High Temperature ◽  
Surface Area ◽  
Passivation Layer ◽  
Temperature Decomposition ◽  
Graphite Part

The Role of MoO3 and Fe2O3 in the Thermal Decomposition of Ammonium Perchlorate

1994 ◽  
Vol 59 (10) ◽  
pp. 2253-2261 ◽  
Author(s):  
Samih A. Halawy ◽  
Mohamed A. Mohamed
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
High Temperature ◽  
Thermogravimetric Analysis ◽  
Surface Area ◽  
Ammonium Perchlorate ◽  
Bet Method ◽  
Xrd Techniques

The effect of addition of MoO3 and Fe2O3 as well as mixtures of the two oxides (calcined in air at 500 °C) on the thermal decomposition of ammonium perchlorate (AP) was studied using thermogravimetry (TGA) and derivative thermogravimetric analysis (DTG). The catalysts calcined at 500 °C were characterized using TPR, XPS and XRD techniques. The surface area of the catalysts was determined by means of the conventional BET method. The results are discussed in terms of the recently published mechanism in which nitryl perchlorate is supposed as an intermediate in the thermal decomposition of pure AP. The correlation between the surface area and activity of the catalysts in the thermal decomposition of AP has been done. The activation energy (∆E) for non-catalyzed and catalyzed high-temperature thermal decomposition of AP were calculated from the TGA results using the Coats-Redfern equation.

The formation of desilication products in the presence of kaolinite and halloysite – The role of surface area

2021 ◽  
pp. 105643
Author(s):  
Jose F. Gomes ◽  
Michael Davies ◽  
Peter Smith ◽  
Franca Jones
Keyword(s):  
Surface Area

scholarly journals The Role of Chromium in Iron-based High-Temperature Water-Gas Shift Catalysts under Industrial Conditions

2021 ◽  
pp. 120465
Author(s):  
M.I. Ariëns ◽  
V. Chlan ◽  
P. Novák ◽  
L.G.A. van de Water ◽  
A.I. Dugulan ◽  
...  
Keyword(s):  
High Temperature ◽  
Water Gas Shift ◽  
High Temperature Water ◽  
Iron Based ◽  
Water Gas ◽  
Temperature Water
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