hydrogen separation
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2022 ◽  
Vol 642 ◽  
pp. 119962
Author(s):  
Ufafa Anggarini ◽  
Hiroki Nagasawa ◽  
Masakoto Kanezashi ◽  
Toshinori Tsuru

2022 ◽  
pp. 2100796
Author(s):  
Jian Guan ◽  
Yanqiu Lu ◽  
Lijun Du ◽  
Canzeng Liang ◽  
Ji Wu ◽  
...  
Keyword(s):  

Membranes ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 75
Author(s):  
Leon R. S. Rosseau ◽  
José A. Medrano ◽  
Rajat Bhardwaj ◽  
Earl L. V. Goetheer ◽  
Ivo A. W. Filot ◽  
...  

The concept of liquid metal membranes for hydrogen separation, based on gallium or indium, was recently introduced as an alternative to conventional palladium-based membranes. The potential of this class of gas separation materials was mainly attributed to the promise of higher hydrogen diffusivity. The postulated improvements are only beneficial to the flux if diffusion through the membrane is the rate-determining step in the permeation sequence. Whilst this is a valid assumption for hydrogen transport through palladium-based membranes, the relatively low adsorption energy of hydrogen on both liquid metals suggests that other phenomena may be relevant. In the current study, a microkinetic modeling approach is used to enable simulations based on a five-step permeation mechanism. The calculation results show that for the liquid metal membranes, the flux is limited by the dissociative adsorption over a large temperature range, and that the membrane flux is expected to be orders of magnitude lower compared to the membrane flux through pure palladium membranes. Even when accounting for the lower cost of the liquid metals compared to palladium, the latter still outperforms both gallium and indium in all realistic scenarios, in part due to the practical difficulties associated with making liquid metal thin films.


2022 ◽  
Vol 281 ◽  
pp. 119875
Author(s):  
Haiqian Lian ◽  
Eryue Song ◽  
Bin Bao ◽  
Wenhe Yang ◽  
Yu Yang ◽  
...  

Author(s):  
Jingyi Wang ◽  
Lili Cai ◽  
Zhengqi Liang ◽  
Yue Zhu ◽  
Zhongwei Cao ◽  
...  

2021 ◽  
Vol 249 ◽  
pp. 114838
Author(s):  
Rached Ben-Mansour ◽  
M.D. Azazul Haque ◽  
Aadesh Harale ◽  
Stephen N. Paglieri ◽  
Firas S. Alrashed ◽  
...  

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