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Adsorption micro calorimeter

delete2009-08-06
delete19
PRE
AI
G
Garcia-Cuello, V.
J
Juan Carlos Moreno‐Piraján *
L
Liliana Giraldo-Gutiérrez
K
Karim Sapag
G
G. Zgrablich
DOI:10.1007/s10973-009-0345-4delete
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摘要

摘要

En 中文
In this work, it is described an innovative heat flux micro calorimeter Tian-Calvet type designed to measure adsorption heats and reactions as well as adsorption isotherms. It consists in an adsorption instrument for volumetric gases, which is coupled to the micro calorimeter. The changes in the pressure are monitored by means of high sensitivity and high precision pressure transducers. The micro calorimeter has thermo elements that work by a Seebeck effect, in a twin cells system. The cells are inside a box in which the temperature can be adjusted from 77 to 300 K. The sensitiveness of the calorimeter is established by applying a perfectly known electric work. The results corresponding to the electric calibration, the base line stability determination and the time constant in the equipment are shown.
Keyword:
Adsorption calorimetry
Pressures transducers
Calorimeter constant
Time constant

期刊

Journal of Thermal Analysis and Calorimetry 封面图
Journal of Thermal Analysis and Calorimetry
IF:
3.1
论文数:
1.8W
被引数:
3.2W

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U
Universidad Nacional de Colombia
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universidad nacional de san luis
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U
universidad de los andes (colombia)
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