ion separation
Recently Published Documents


TOTAL DOCUMENTS

251
(FIVE YEARS 71)

H-INDEX

30
(FIVE YEARS 9)

Author(s):  
Wenjihao Hu ◽  
Lei Xie ◽  
Chengyang Zhang ◽  
Jingyi Wang ◽  
Chenyu Qiao ◽  
...  

Lamellar membranes of Nb2CTx nanosheets have received significant research interests as cost-effective and efficient materials for desalination, water purification, energy conversion and storage, and ion separation. However, the constructive strategies...


Author(s):  
Geunbae Lim ◽  
Hyukjin Jean Kwon ◽  
Minsoo Lee ◽  
Woochul Jung

The effective separation of Mg2+ from Li+ is the key for realizing efficient and economic lithium extraction from brine, but remains challenging due to their similar chemical properties. Recent approaches...


Author(s):  
Qiang Sun ◽  
Qianhong Zhou ◽  
Hantian Zhang ◽  
Wei Yang ◽  
Ye Dong ◽  
...  

Abstract The separation phenomenon of light and heavy ions was widely observed experimentally in the vacuum arc discharge with multi-component composite cathode. In this work, a two-dimensional axisymmetric multi-fluid model is used to study the separation mechanism in the multi-component composite cathode vacuum arc. The multi-component vacuum arcs are simulated as a whole which includes separate cathode spot jets, the mixing region, and common arc column. The results show that the plasma jets originated from the separate cathode spot mix together to form a common arc column after a certain distance from the cathode. Due to the rapid increase of ion temperature dozens of times in mixing region of cathode spot jet, the effect of pressure gradient becomes far greater than that of the collisions between light and heavy ions. This leads to a shift in the predominant ion motion mechanism from ion-ion collision (single cathode spot jet region) to pressure expansion (the mixing region). Finally, the light ions gain higher velocities under pressure expansion. In addition, the effect of thermal conductivity and viscosity leads to the wider high temperature regions for light ions, thus making a wider distribution of corresponding ion flux. The numerical results are qualitatively consistent with the experimental results. This paper provides an insight into ion separation mechanism in the multi-component vacuum arc.


2021 ◽  
Vol 3 (10) ◽  
pp. 819-831
Author(s):  
Amit Kumar ◽  
Yoonseob Kim ◽  
Xiao Su ◽  
Hiroki Fukuda ◽  
Gayathri Naidu ◽  
...  
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document