scholarly journals Measuring and Reporting Electrical Conductivity in Metal–Organic Frameworks: Cd2(TTFTB) as a Case Study

2016 ◽  
Vol 138 (44) ◽  
pp. 14772-14782 ◽  
Author(s):  
Lei Sun ◽  
Sarah S. Park ◽  
Dennis Sheberla ◽  
Mircea Dincă
Keyword(s):  
Electrical Conductivity ◽  
Metal Organic Frameworks ◽  
Metal Organic

Metal-Organic Frameworks vs. Buffers: Case Study of UiO-66 Stability

2020 ◽  
Author(s):  
Daniel Bůžek ◽  
Slavomír Adamec ◽  
Kamil Lang ◽  
Jan Demel
Keyword(s):  
Inductively Coupled Plasma ◽  
Buffer Capacity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Analytical Techniques ◽  
Aqueous Dispersions ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Metal Organic

<div><p>UiO-66 is a zirconium-based metal-organic framework (MOF) that has numerous applications. Our group recently determined that UiO-66 is not as inert in aqueous dispersions as previously reported in the literature. The present work therefore assessed the behaviour of UiO-66 in buffers: 2-amino-2-(hydroxymethyl)-1,3-propanediol (TRIS), 4-(2-hydroxyethyl)piperazine-1-ethane sulfonic acid (HEPES), N-ethylmorpholine (NEM) and phosphate buffer (PB), all of which are commonly used in many UiO-66 applications. High pressure liquid chromatography and inductively coupled plasma mass spectrometry were used to monitor degradation of the MOF. In each buffer, the terephthalate linker was released to some extent, with a more pronounced leaching effect in the saline forms of these buffers. The HEPES buffer was found to be the most benign, whereas NEM and PB should be avoided at any concentration as they were shown to rapidly degrade the UiO-66 framework. Low concentration TRIS buffers are also recommended, although these offer minimal buffer capacity to adjust pH. Regardless of the buffer used, rapid terephthalate release was observed, indicating that the UiO-66 was attacked immediately after mixing with the buffer. In addition, the dissolution of zirconium, observed in some cases, intensified the UiO-66 decomposition process. These results demonstrate that sensitive analytical techniques have to be used to monitor the release of MOF components so as to quantify the stabilities of these materials in liquid environments.</p></div>

Achieving Large Volumetric Gas Storage Capacity in Metal–Organic Frameworks by Kinetic Trapping: A Case Study of Xenon Loading in MFU-4

2018 ◽  
Vol 140 (32) ◽  
pp. 10191-10197 ◽  
Author(s):  
Hana Bunzen ◽  
Felicitas Kolbe ◽  
Andreas Kalytta-Mewes ◽  
German Sastre ◽  
Eike Brunner ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Metal Organic Frameworks ◽  
Gas Storage ◽  
Metal Organic ◽  
Kinetic Trapping

scholarly journals Cation-Dependent Intrinsic Electrical Conductivity in Isostructural Tetrathiafulvalene-Based Microporous Metal–Organic Frameworks

2015 ◽  
Vol 137 (5) ◽  
pp. 1774-1777 ◽  
Author(s):  
Sarah S. Park ◽  
Eric R. Hontz ◽  
Lei Sun ◽  
Christopher H. Hendon ◽  
Aron Walsh ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Metal Organic Frameworks ◽  
Metal Organic

scholarly journals Electrical conductivity and magnetic bistability in metal–organic frameworks and coordination polymers: charge transport and spin crossover at the nanoscale

2020 ◽  
Vol 49 (15) ◽  
pp. 5601-5638 ◽  
Author(s):  
Víctor Rubio-Giménez ◽  
Sergio Tatay ◽  
Carlos Martí-Gastaldo
Keyword(s):  
Electrical Conductivity ◽  
Charge Transport ◽  
Coordination Polymers ◽  
Spin Crossover ◽  
Electronic Devices ◽  
Metal Organic Frameworks ◽  
Active Components ◽  
Metal Organic

This review aims to reassess the progress, issues and opportunities in the path towards integrating conductive and magnetically bistable coordination polymers and metal–organic frameworks as active components in electronic devices.

Metal–organic-frameworks-derived NaTi2(PO4)3/carbon composites for efficient hybrid capacitive deionization

2019 ◽  
Vol 7 (19) ◽  
pp. 12126-12133 ◽  
Author(s):  
Kai Wang ◽  
Yong Liu ◽  
Zibiao Ding ◽  
Yuquan Li ◽  
Ting Lu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Porous Structure ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Carbon Composites ◽  
Capacitive Deionization ◽  
Metal Organic ◽  
Organic Framework

Metal–organic-framework-derived NaTi2(PO4)3/carbon composites with unique porous structure and improved electrical conductivity exhibit high desalination performance for hybrid capacitive deionization.

On the Electronic and Optical Properties of Metal–Organic Frameworks: Case Study of MIL-125 and MIL-125-NH2

2020 ◽  
Vol 124 (7) ◽  
pp. 4065-4072 ◽  
Author(s):  
Gloria Capano ◽  
Francesco Ambrosio ◽  
Stavroula Kampouri ◽  
Kyriakos C. Stylianou ◽  
Alfredo Pasquarello ◽  
...  
Keyword(s):  
Optical Properties ◽  
Metal Organic Frameworks ◽  
Electronic And Optical Properties ◽  
Metal Organic

Thermal Defect Engineering of Precious Group Metal–Organic Frameworks: A Case Study on Ru/Rh-HKUST-1 Analogues

2020 ◽  
Vol 12 (36) ◽  
pp. 40635-40647 ◽  
Author(s):  
Werner R. Heinz ◽  
Iker Agirrezabal-Telleria ◽  
Raphael Junk ◽  
Jan Berger ◽  
Junjun Wang ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Defect Engineering ◽  
Group Metal ◽  
Thermal Defect ◽  
Metal Organic

Metal-Organic Frameworks vs. Buffers: Case Study of UiO-66 Stability

2020 ◽  
Author(s):  
Daniel Bůžek ◽  
Slavomír Adamec ◽  
Kamil Lang ◽  
Jan Demel
Keyword(s):  
Inductively Coupled Plasma ◽  
Buffer Capacity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Analytical Techniques ◽  
Aqueous Dispersions ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Metal Organic

<div><p>UiO-66 is a zirconium-based metal-organic framework (MOF) that has numerous applications. Our group recently determined that UiO-66 is not as inert in aqueous dispersions as previously reported in the literature. The present work therefore assessed the behaviour of UiO-66 in buffers: 2-amino-2-(hydroxymethyl)-1,3-propanediol (TRIS), 4-(2-hydroxyethyl)piperazine-1-ethane sulfonic acid (HEPES), N-ethylmorpholine (NEM) and phosphate buffer (PB), all of which are commonly used in many UiO-66 applications. High pressure liquid chromatography and inductively coupled plasma mass spectrometry were used to monitor degradation of the MOF. In each buffer, the terephthalate linker was released to some extent, with a more pronounced leaching effect in the saline forms of these buffers. The HEPES buffer was found to be the most benign, whereas NEM and PB should be avoided at any concentration as they were shown to rapidly degrade the UiO-66 framework. Low concentration TRIS buffers are also recommended, although these offer minimal buffer capacity to adjust pH. Regardless of the buffer used, rapid terephthalate release was observed, indicating that the UiO-66 was attacked immediately after mixing with the buffer. In addition, the dissolution of zirconium, observed in some cases, intensified the UiO-66 decomposition process. These results demonstrate that sensitive analytical techniques have to be used to monitor the release of MOF components so as to quantify the stabilities of these materials in liquid environments.</p></div>

Sign in / Sign up

Export Citation Format

Share Document