Recent progress on porous MOFs for process-efficient hydrocarbon separation, luminescent sensing, and information encryption

2022 ◽  
Author(s):  
Dian Zhao ◽  
Kuangli Yu ◽  
Xue Han ◽  
Yabing He ◽  
Banglin Chen
Keyword(s):  
Surface Chemistry ◽  
Porous Materials ◽  
Pore Size ◽  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Luminescent Sensing

Metal-organic frameworks (MOFs), as an emerging kind of porous materials, excels in designability, regulatability, and modifiability in terms of composition, topology, pore size, and surface chemistry, thus affording a huge...

scholarly journals Influence of Pore Size on Carbon Dioxide Diffusion in Two Isoreticular Metal–Organic Frameworks

2020 ◽  
Author(s):  
Alexander C. Forse ◽  
Kristen A. Colwell ◽  
Miguel I. Gonzalez ◽  
Stefan Benders ◽  
Rodolfo M. Torres-Gavosto ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Porous Materials ◽  
Pore Size ◽  
Critical Role ◽  
Metal Organic Frameworks ◽  
The Self ◽  
Self Diffusion ◽  
Common Strategy ◽  
Metal Organic ◽  
Different Diameters

The rapid diffusion of molecules in porous materials is critical for numerous applications including separations, energy storage, sensing, and catalysis. A common strategy for tuning guest diffusion rates is to vary the material pore size, although detailed studies that isolate the effect of changing this particular variable are lacking. Here, we begin to address this challenge by measuring the diffusion of carbon dioxide in two isoreticular metal–organic frameworks featuring channels with different diameters, Zn<sub>2</sub>(dobdc) (dobdc<sup>4–</sup> = 2,5-dioxidobenzene-1,4-dicarboxylate) and Zn<sub>2</sub>(dobpdc) (dobpdc<sup>4−</sup> = 4,4′-dioxidobiphenyl-3,3′-dicarboxylate), using pulsed field gradient NMR spectroscopy. An increase in the pore diameter from 15 Å in Zn<sub>2</sub>(dobdc) to 22 Å in Zn<sub>2</sub>(dobpdc) is accompanied by an increase in the self-diffusion of CO<sub>2</sub> by a factor of 4 to 6, depending on the gas pressure. Analysis of the diffusion anisotropy in Zn<sub>2</sub>(dobdc) reveals that the self-diffusion coefficient for motion of CO<sub>2</sub> along the framework channels is at least 10,000 times greater than for motion between the framework channels. Our findings should aid the design of improved porous materials for a range of applications where diffusion plays a critical role in determining performance.

scholarly journals Influence of Pore Size on Carbon Dioxide Diffusion in Two Isoreticular Metal–Organic Frameworks

2020 ◽  
Author(s):  
Alexander C. Forse ◽  
Kristen A. Colwell ◽  
Miguel I. Gonzalez ◽  
Stefan Benders ◽  
Rodolfo M. Torres-Gavosto ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Porous Materials ◽  
Pore Size ◽  
Critical Role ◽  
Metal Organic Frameworks ◽  
The Self ◽  
Self Diffusion ◽  
Common Strategy ◽  
Metal Organic ◽  
Different Diameters

The rapid diffusion of molecules in porous materials is critical for numerous applications including separations, energy storage, sensing, and catalysis. A common strategy for tuning guest diffusion rates is to vary the material pore size, although detailed studies that isolate the effect of changing this particular variable are lacking. Here, we begin to address this challenge by measuring the diffusion of carbon dioxide in two isoreticular metal–organic frameworks featuring channels with different diameters, Zn<sub>2</sub>(dobdc) (dobdc<sup>4–</sup> = 2,5-dioxidobenzene-1,4-dicarboxylate) and Zn<sub>2</sub>(dobpdc) (dobpdc<sup>4−</sup> = 4,4′-dioxidobiphenyl-3,3′-dicarboxylate), using pulsed field gradient NMR spectroscopy. An increase in the pore diameter from 15 Å in Zn<sub>2</sub>(dobdc) to 22 Å in Zn<sub>2</sub>(dobpdc) is accompanied by an increase in the self-diffusion of CO<sub>2</sub> by a factor of 4 to 6, depending on the gas pressure. Analysis of the diffusion anisotropy in Zn<sub>2</sub>(dobdc) reveals that the self-diffusion coefficient for motion of CO<sub>2</sub> along the framework channels is at least 10,000 times greater than for motion between the framework channels. Our findings should aid the design of improved porous materials for a range of applications where diffusion plays a critical role in determining performance.

scholarly journals Influence of Pore Size on Carbon Dioxide Diffusion in Two Isoreticular Metal–Organic Frameworks

2020 ◽  
Author(s):  
Alexander C. Forse ◽  
Kristen A. Colwell ◽  
Miguel I. Gonzalez ◽  
Stefan Benders ◽  
Rodolfo M. Torres-Gavosto ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Porous Materials ◽  
Pore Size ◽  
Critical Role ◽  
Metal Organic Frameworks ◽  
The Self ◽  
Self Diffusion ◽  
Common Strategy ◽  
Metal Organic ◽  
Different Diameters

The rapid diffusion of molecules in porous materials is critical for numerous applications including separations, energy storage, sensing, and catalysis. A common strategy for tuning guest diffusion rates is to vary the material pore size, although detailed studies that isolate the effect of changing this particular variable are lacking. Here, we begin to address this challenge by measuring the diffusion of carbon dioxide in two isoreticular metal–organic frameworks featuring channels with different diameters, Zn<sub>2</sub>(dobdc) (dobdc<sup>4–</sup> = 2,5-dioxidobenzene-1,4-dicarboxylate) and Zn<sub>2</sub>(dobpdc) (dobpdc<sup>4−</sup> = 4,4′-dioxidobiphenyl-3,3′-dicarboxylate), using pulsed field gradient NMR spectroscopy. An increase in the pore diameter from 15 Å in Zn<sub>2</sub>(dobdc) to 22 Å in Zn<sub>2</sub>(dobpdc) is accompanied by an increase in the self-diffusion of CO<sub>2</sub> by a factor of 4 to 6, depending on the gas pressure. Analysis of the diffusion anisotropy in Zn<sub>2</sub>(dobdc) reveals that the self-diffusion coefficient for motion of CO<sub>2</sub> along the framework channels is at least 10,000 times greater than for motion between the framework channels. Our findings should aid the design of improved porous materials for a range of applications where diffusion plays a critical role in determining performance.

Are you using the right probe molecules for assessing the textural properties of metal–organic frameworks?

2022 ◽  
Author(s):  
Timur Islamoglu ◽  
Karam B. Idrees ◽  
Florencia A. Son ◽  
Zhijie Chen ◽  
Seung-Joon Lee ◽  
...  
Keyword(s):  
Pore Size Distribution ◽  
Porous Materials ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Pore Volume ◽  
Metal Organic Frameworks ◽  
Textural Properties ◽  
Metal Organic ◽  
The Right

Textural properties—such as the surface area, pore size distribution, and pore volume—are at the forefront of characterization for porous materials.

scholarly journals Recent Progress of Nanoscale Metal‐Organic Frameworks in Synthesis and Battery Applications

2020 ◽  
pp. 2001980
Author(s):  
Ming Zhong ◽  
Lingjun Kong ◽  
Kun Zhao ◽  
Ying‐Hui Zhang ◽  
Na Li ◽  
...  
Keyword(s):  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Metal Organic

Smart metal organic frameworks: Focus on cancer treatment

2021 ◽  
Author(s):  
Monir Falsafi ◽  
Amir Shokooh Saljooghi ◽  
Khalil Abnous ◽  
Seyed Mohammad Taghdisi ◽  
Mohammad Ramezani ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Cancer Treatment ◽  
Porous Materials ◽  
Metal Clusters ◽  
Metal Organic Frameworks ◽  
Controlled Systems ◽  
Metal Organic

Metal–organic frameworks (MOFs), as a prominent category of hybrid porous materials constructed from metal clusters or ions plus organic linkers, have been broadly employed as controlled systems of drug delivery...

Recent Progress in Luminous Particle‐Encapsulated Host–Guest Metal‐Organic Frameworks for Optical Applications

2021 ◽  
pp. 2100283
Author(s):  
Bing‐Bing Guo ◽  
Jia‐Cheng Yin ◽  
Na Li ◽  
Zi‐Xuan Fu ◽  
Xiao Han ◽  
...  
Keyword(s):  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Optical Applications

scholarly journals Porphyrin and phthalocyanine-based Metal Organic Frameworks beyond metal-carboxylates

2020 ◽  
Author(s):  
Siddhartha De ◽  
Thomas Devic ◽  
Alexandra Fateeva
Keyword(s):  
Porous Materials ◽  
Metal Organic Frameworks ◽  
Metal Carboxylates ◽  
Natural Systems ◽  
Metal Organic

Given the ubiquitous role of porphyrins in natural systems, these molecules and related derivatives such as phthalocyanines are fascinating building units to achieve functional porous materials. Porphyrin-based MOFs have been...

Recent progress in pristine MOF-based catalysts for electrochemical hydrogen evolution, oxygen evolution and oxygen reduction

2021 ◽  
Author(s):  
Lili Fan ◽  
Zixi Kang ◽  
Mengfei Li ◽  
Daofeng Sun
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Reduction Reaction ◽  
Metal Organic

Among various kinds of materials that have been investigated as electrocatalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), metal-organic frameworks (MOFs) emerge as...

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