THE INFLUENCE OF TEMPERATURE ON THE KINETICS OF CHEMISORPTION OF HYDROGEN ON ZINC OXIDE

1959 ◽  
Vol 37 (11) ◽  
pp. 1916-1922 ◽  
Author(s):  
Manfred J. D. Low
Keyword(s):  
Zinc Oxide ◽  
Hydrogen Adsorption ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Elovich Equation ◽  
Temperature Ranges ◽  
Kinetics Of

The kinetics of hydrogen adsorption by ZnO have been measured at constant pressures of 403 mm Hg over temperatures from 0 °C to 257 °C. Two distinct consecutive kinetic stages occur at all temperatures, each stage being precisely expressed by the Elovich equation. The rates and extents of adsorption increase in the temperature ranges 0–80 °C and 110–200 °C and decrease in the range 80–110 °C. The change with temperature of the constants a and 1/α of the Elovich equation parallels changes in the amount adsorbed with temperature.

Kinetic Study of the Diels-Alder Reaction of Cyclopentadiene with Bis(2-Ethylhexyl) Maleate

2013 ◽  
Vol 634-638 ◽  
pp. 541-545 ◽  
Author(s):  
Jun Seong Park ◽  
Dae Hee Yun ◽  
Tae Won Ko ◽  
Yong Sung Park ◽  
Je Wan Woo
Keyword(s):  
Kinetic Study ◽  
Reaction Temperature ◽  
Atmospheric Pressure ◽  
Arrhenius Equation ◽  
Alder Reaction ◽  
Diels Alder ◽  
Influence Of Temperature ◽  
Diels Alder Reaction ◽  
Influence Of Temperature On ◽  
Kinetics Of

The kinetics of the Diels-Alder reaction of cyclopentadiene with bis(2-ethylhexyl) maleate has been studied at temperatures between 25 and 100 °C and at atmospheric pressure. The influence of temperature on the kinetic constants was determined by fitting the results to the Arrhenius equation. As a result, fitting line similar with the linear curve of the Arrhenius equation at 25, 30 and 40 °C. However, the fitting curve, at 60, 80 and 100 °C, tended towards the outside of the curve in the form of Arrhenius equation. The ratio of endo/exo was a slight change from increase of the reaction temperature.

The influence of temperature on the kinetics of apatite flotation from magnetite fines

1998 ◽  
Vol 54 (3-4) ◽  
pp. 131-145 ◽  
Author(s):  
Fenwei Su ◽  
K Hanumantha Rao ◽  
K.S.E Forssberg ◽  
P.O Samskog
Keyword(s):  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Kinetics Of

scholarly journals Influence of temperature on the dissolution kinetics of synthetic LaPO4-monazite in acidic media between 50 and 130 °C

2018 ◽  
Vol 509 ◽  
pp. 488-495 ◽  
Author(s):  
Yulia Arinicheva ◽  
Clemence Gausse ◽  
Stefan Neumeier ◽  
Felix Brandt ◽  
Konstantin Rozov ◽  
...  
Keyword(s):  
Dissolution Kinetics ◽  
Acidic Media ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Kinetics Of

The Effect of Sintering Temperature to the Properties of Zinc Oxide

2013 ◽  
Vol 795 ◽  
pp. 419-423 ◽  
Author(s):  
J.H. Lim ◽  
C.K. Yeoh ◽  
Pei Leng Teh ◽  
W.M. Arif ◽  
A. Chik
Keyword(s):  
Thermal Conductivity ◽  
Zinc Oxide ◽  
Thermal Properties ◽  
Solid State ◽  
Sintering Temperature ◽  
Solid State Method ◽  
Influence Of Temperature ◽  
Temperature Range ◽  
Influence Of Temperature On ◽  
State Method

In this paper, different sintering temperature used to study the influence of temperature on the structural and thermal properties of zinc oxide (ZnO). On this research, the sample was prepared by solid-state method for zinc oxide (ZnO) at different sintering temperature which was 700°C, 800°C and 900°C. It was observed that the density of bulk ZnO that sintering at 900°C had the higher value of density 5.03 g/cm3. The microhardness of the bulk ZnO had a higher measurement 397.3 Hv after sintered at 900°C. ZnO that sintering at 900°C had been observed that had thermal conductivity 1.1611W/cm-K in the sintering temperature range 700°C to 900°C.

scholarly journals Impact of Heat on the Different Stages of the Production of Local Beer “Tchoukoutou” Made from Sorghum

2021 ◽  
Vol 37 (6) ◽  
pp. 1359-1365
Author(s):  
Adjo Cynthia Kouakou ◽  
Agbékonyi Kokou Agbodan ◽  
Kwami Lumo Awaga ◽  
Awèdéou Bakpo ◽  
Eyawèdeou Yelegue ◽  
...  
Keyword(s):  
Germination Rate ◽  
Effect Of Temperature ◽  
Soaking Time ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Temperature Ranges ◽  
The Subject ◽  
Temperature Levels ◽  
C 30

Tchoukoutou is a local alcoholic drink made from sorghum. The optimization and good quality of this drink depend on certain factors such as temperature that were the subject of our work. To carry out this study, we have set ourselves the general objective of structuring the production of Tchoukoutou. Specifically, the study aims to systematize the cooking of the wort, to verify the properties of the beer through tests and to produce a quality drink. An investigation was made on the influence of temperature on sorghum germination and wort cooking. The study of the effect of temperature on the germination of sorghum was carried out. It concerned four different temperature levels which are: 23 ° C, 26 ° C, 30 ° C and 35 ° C. A study of the influence of temperature on brewing was done with different varieties of sorghum and also at different temperature ranges: 78 ° C, 83 ° C, 89 ° C, and 92 ° C. The results showed that the ideal germination temperature is 30 ° C and for brewing it is 78 ° C. The soaking time during germination, for a good germination rate, is between 16h and 26h. In conclusion, the temperature factor is a parameter that should not be overlooked when making Tchoukoutou. Our study thus made will serve as a basis for subsequent studies in the same direction to achieve a standardized industrial production of Tchoukoutou.

Influence of Temperature on Natural Aging Kinetics of AA6061 Modified with Sn

2015 ◽  
pp. 367-371
Author(s):  
Marion Werinos ◽  
Helmut Antrekowitsch ◽  
Werner Fragner ◽  
Thomas Ebner ◽  
Peter J. Uggowitzer ◽  
...  
Keyword(s):  
Natural Aging ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Aging Kinetics ◽  
Kinetics Of
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