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Acta Phys. -Chim. Sin.  2017, Vol. 33 Issue (6): 1108-1113    DOI: 10.3866/PKU.WHXB201703222
Article     
Statistic Thermodynamic Model of Hydrogen Absorption on Metal Powders
WU Guang-Xin1,2,3,, PENG Wang-Jun1,2,3, ZHANG Jie-Yu1,2,3
1 State Key Laboratory of Advanced Special Steels, Shanghai University, Shanghai 200072, P. R. China;
2 Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai University, Shanghai 200072, P. R. China;
3 Department of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China
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Abstract  

Based on zero-order Bragg-Williams approximation, a new statistic thermodynamic model is presented herein. The distinctive feature of the new model is that an apparent compressibility factor α is introduced to correct the volume change of high-pressure gases and ensure no loop-like curves are obtained in the fitting results. The new model is successfully applied to investigate hydrogen absorption on metal powders. Our results indicate that the model works very well and can be used to predict PCT curves at different temperatures. Hence, our new model exhibits significant potential for application in practical systems.



Key wordsStatistic thermodynamic theory      Hydriding process      Hydrogen storage materials powder     
Received: 09 December 2016      Published: 22 March 2017
MSC2000:  O642  
Fund:  

The project was supported by the National Natural Science Foundation of China (51104098, 51674163) and Science and Technology Committee of Shanghai, China (14521100603, 16ZR1412000).

Corresponding Authors: WU Guang-Xin     E-mail: gxwu@shu.edu.cn
Cite this article:

WU Guang-Xin, PENG Wang-Jun, ZHANG Jie-Yu. Statistic Thermodynamic Model of Hydrogen Absorption on Metal Powders. Acta Phys. -Chim. Sin., 2017, 33(6): 1108-1113.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB201703222     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2017/V33/I6/1108

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