scholarly journals Efficient Helium Separation with Two-Dimensional Metal–Organic Framework Fe/Ni-PTC: A Theoretical Study

Membranes ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 927
Author(s):  
Jingyuan Wang ◽  
Yixiang Li ◽  
Yanmei Yang ◽  
Yongqiang Li ◽  
Mingwen Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Md Simulations ◽  
High Specific Surface Area ◽  
High Tech ◽  
Porous Membranes ◽  
Two Dimensional ◽  
National Defense ◽  
Metal Organic ◽  
Organic Framework

Helium (He) is one of the indispensable and rare strategic materials for national defense and high-tech industries. However, daunting challenges have to be overcome for the supply shortage of He resources. Benefitted from the wide pore size distribution, sufficient intrinsic porosity, and high specific surface area, metal–organic framework (MOF) materials are prospective candidates for He purification in the membrane-based separation technology. In this work, through first-principles calculations and molecular dynamics (MD) simulations, we studied the permeability and filtration performance of He by the newly synthesized two-dimensional Fe-PTC MOF and its analogue Ni-PTC MOF. We found that both Fe-PTC and Ni-PTC have superior high performance for He separation. The selectivity of He over N2 was calculated to be ~1017 for Fe-PTC and ~1015 for Ni-PTC, respectively, both higher than most of the previously proposed 2D porous membranes. Meanwhile, high He permeance (10−4~10−3 mol s−1 m−2 Pa−1) can be obtained for the Fe/Ni-PTC MOF for temperatures ranging from 200 to 500 K. Therefore, the present study offers a highly prospective membrane for He separation, which has great potential in industrial application.

scholarly journals Facile one-pot solvothermal preparation of two-dimensional Ni-based metal–organic framework microsheets as a high-performance supercapacitor material

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8362-8366
Author(s):  
Zhaohua Li ◽  
Yuan Sun ◽  
Rui Hu ◽  
Shuai Ye ◽  
Jun Song ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Two Dimensional ◽  
Supercapacitor Electrode ◽  
One Pot ◽  
Long Term Stability ◽  
Metal Organic ◽  
Solvothermal Preparation ◽  
Organic Framework

Two-dimensional Ni-based metal–organic framework microsheets (Ni-MOFms) were synthesized via a facial one-pot solvothermal approach and exhibited good specific capacities and excellent long-term stability when used for a supercapacitor electrode.

Synthesis and Structure of a Clathrated Two-Dimensional Metal-Organic Framework: [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2·H2O (L = Bis(1-pyrazinylethylidene)hydrazine)

2008 ◽  
Vol 73 (1) ◽  
pp. 24-31
Author(s):  
Dayu Wu ◽  
Genhua Wu ◽  
Wei Huang ◽  
Zhuqing Wang
Keyword(s):  
Metal Organic Framework ◽  
Channel Structure ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Guest Molecules ◽  
X Ray ◽  
Square Planar ◽  
Metal Organic ◽  
Aqueous Meoh ◽  
Organic Framework

The compound [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2 was obtained by the reaction of Cd(ClO4)2, bis(1-pyrazinylethylidene)hydrazine (L) and 4,4'-bipyridine in aqueous MeOH. Single-crystal X-ray diffraction has revealed its two-dimensional metal-organic framework. The 2-D layers superpose on each other, giving a channel structure. The square planar grids consist of two pairs of shared edges with Cd(II) ion and a 4,4'-bipyridine molecule each vertex and side, respectively. The square cavity has a dimension of 11.817 × 11.781 Å. Two guest molecules of bis(1-pyrazinylethylidene)hydrazine are clathrated in every hydrophobic host cavity, being further stabilized by π-π stacking and hydrogen bonding. The results suggest that the hydrazine molecules present in the network serve as structure-directing templates in the formation of crystal structures.

Two-Dimensional Metal–Organic Framework Nanosheets as an Enzyme Inhibitor: Modulation of the α-Chymotrypsin Activity

2017 ◽  
Vol 139 (24) ◽  
pp. 8312-8319 ◽  
Author(s):  
Ming Xu ◽  
Shuai Yuan ◽  
Xin-Yu Chen ◽  
Yu-Jie Chang ◽  
Gregory Day ◽  
...  
Keyword(s):  
Enzyme Inhibitor ◽  
Metal Organic Framework ◽  
Two Dimensional ◽  
Chymotrypsin Activity ◽  
Metal Organic ◽  
Organic Framework

A binuclear Co-based metal-organic framework towards efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Ning Liu ◽  
Qiaoqiao Zhang ◽  
Jingqi Guan
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Research Interest ◽  
Metal Organic ◽  
Organic Framework

Seeking for low-cost and high-performance electrocatalysts for oxygen evolution reaction (OER) has drawn enormous research interest in the last few years. Reported herein is the topotactic construction of a binuclear...

A new hexagonal porous carbon nanoplate material derived from Al-based metal organic framework for high performance supercapacitors

2021 ◽  
Vol 371 ◽  
pp. 137826
Author(s):  
Xingyu Liu ◽  
Pingyuan Wang ◽  
Cuiping Chang ◽  
Yongmei Chen ◽  
Yanzhi Sun ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework
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