The diquaternary ammonium surfactant-directed synthesis of single-unit-cell nanowires of ZSM-5 zeolite

Nanoscale ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 5824-5828 ◽  
Author(s):  
Yu Shen ◽  
Hang Li ◽  
Xubin Zhang ◽  
Xuqing Wang ◽  
Guojun Lv

Single-unit-cell nanowires of ZSM-5 zeolite were synthesized by controlling the crystal growth directions through redesigning the hydrophobic groups in a bifunctional template.

Author(s):  
T. O. M. Forslund ◽  
I. A. S. Larsson ◽  
J. G. I. Hellström ◽  
T. S. Lundström

AbstractThe effects of periodicity assumptions on the macroscopic properties of packed porous beds are evaluated using a cascaded Lattice-Boltzmann method model. The porous bed is modelled as cubic and staggered packings of mono-radii circular obstructions where the bed porosity is varied by altering the circle radii. The results for the macroscopic properties are validated using previously published results. For unsteady flows, it is found that one unit cell is not enough to represent all structures of the fluid flow which substantially impacts the permeability and dispersive properties of the porous bed. In the steady region, a single unit cell is shown to accurately represent the fluid flow across all cases studied


ACS Nano ◽  
2021 ◽  
Author(s):  
Azmira Jannat ◽  
Nitu Syed ◽  
Kai Xu ◽  
Md. Ataur Rahman ◽  
Md. Mehdi Masud Talukder ◽  
...  

Author(s):  
James J. Tinsley ◽  
Gregory J. Vernon ◽  
Kelly O. Homan

With the increasing prevalence of additive manufacturing, geometries that would not have been possible to manufacture just a few years ago are becoming a reality. One example is the ability to create pipes with integral, geometry compliant lattice structures. These compliant lattice structures offer the potential to greatly enhance heat transfer in arbitrary flow passages. This preliminary paper will focus on the development of an isothermal simulation model in OpenFOAM, to model the nature of the flow for a single unit cell, a unit cell screen, and a series of unit cell screens. Honeywell FM&T is a contractor of the U.S. Government under Contract No. DE-NA0002839.


2020 ◽  
Vol 132 (24) ◽  
pp. 9666-9672
Author(s):  
Yasmine Guefrachi ◽  
Geetu Sharma ◽  
Dandan Xu ◽  
Gaurav Kumar ◽  
Katherine P. Vinter ◽  
...  

2015 ◽  
Vol 127 (41) ◽  
pp. 12046-12046
Author(s):  
Liang Liang ◽  
Hao Cheng ◽  
Fengcai Lei ◽  
Jun Han ◽  
Shan Gao ◽  
...  

2015 ◽  
Vol 127 (47) ◽  
pp. 14177-14180 ◽  
Author(s):  
Liang Liang ◽  
Fengcai Lei ◽  
Shan Gao ◽  
Yongfu Sun ◽  
Xingchen Jiao ◽  
...  

2019 ◽  
Vol 100 (12) ◽  
Author(s):  
W. Yang ◽  
R. U. Chandrasena ◽  
M. Gu ◽  
R. M. S. dos Reis ◽  
E. J. Moon ◽  
...  

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