NDLI: Thermodynamics and kinetics of the thermal decomposition of cupric chloride in its hydrolysis reaction

Content Provider	Springer Nature Link
Author	Wang, Z. Marin, G. Naterer, G. F. Gabriel, K. S.
Copyright Year	2014
Abstract	The hydrolysis of copper(II) chloride is the water splitting process in the copper–chlorine thermochemical hydrogen production cycle. In this paper, a simultaneous differential scanning calorimetry and thermogravimetric analysis (DSC/TG) technique is used to determine the transitional temperature and kinetics of the thermal decomposition of CuCl$_{2}$. Thermodynamic analysis is performed on the decomposition reaction for a comparison with the thermogravimetric analysis results. The CuCl$_{2}$ decomposition temperature obtained from thermogravimetric experiments is found to be higher than that predicted from the thermodynamic analysis. This broadens the available operating temperature range of the CuCl$_{2}$ hydrolysis step for the Cu–Cl cycle. It is also found that the decomposition product CuCl may completely evaporate if the temperature is higher than its melting point, so the CuCl$_{2}$ hydrolysis reaction should be operated below the melting point of CuCl (430 °C) to avoid the undesirable CuCl and Cl$_{2}$ byproducts. A preliminary correlation is proposed in this paper for the decomposition kinetics in terms of the extent of converting CuCl$_{2}$ to CuCl and Cl$_{2}$.
Starting Page	815
Ending Page	823
Page Count	9
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	119
Issue Number	2
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-07-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Thermal decomposition Copper chloride Hydrolysis SDC/TG analysis Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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