The role of the metal center on charge transport rate in MOF-525: cobalt and nickel porphyrin

2021 ◽  
Author(s):  
Pedro Arturo Herrera-Herrera ◽  
Erika Rodríguez-Sevilla ◽  
Ana Varela
Keyword(s):  
Charge Transport ◽  
Metal Organic Frameworks ◽  
Metal Center ◽  
Transport Rate ◽  
Electrochemical Applications ◽  
Nickel Porphyrin ◽  
Metal Organic ◽  
Cobalt And Nickel

Metal Organic Frameworks (MOFs) have emerged as promising materials for different electrochemical applications. Their low conductvity, however, is a major challenge to overcome. Therefore a deeper understanding on the charge...

The role of redox hopping in metal–organic framework electrocatalysis

2018 ◽  
Vol 54 (51) ◽  
pp. 6965-6974 ◽  
Author(s):  
Shaoyang Lin ◽  
Pavel M. Usov ◽  
Amanda J. Morris
Keyword(s):  
Charge Transport ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Organic Framework

A perspective on redox hopping charge transport through metal organic frameworks and its role in driving efficient electrocatalysis.

Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

Classification and role of modulators on crystal engineering of metal organic frameworks (MOFs)

2021 ◽  
Vol 444 ◽  
pp. 214064
Author(s):  
Danni Jiang ◽  
Chao Huang ◽  
Jian Zhu ◽  
Ping Wang ◽  
Zhiming Liu ◽  
...  
Keyword(s):  
Crystal Engineering ◽  
Metal Organic Frameworks ◽  
Metal Organic

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...

Metal-Organic Framework Transistors for Dopamine Sensing

2021 ◽  
Author(s):  
Jiajun Song ◽  
Jianzhong Zheng ◽  
Anneng Yang ◽  
Hong Liu ◽  
Zeyu Zhao ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Porosity ◽  
Two Dimensional ◽  
Metal Organic ◽  
Organic Framework

Two-dimensional (2D) conductive metal-organic frameworks (MOFs) can not only inherit the high porosity and tailorability of traditional MOFs but also exhibit unique charge transport properties, offering promising opportunities for applications...

Metal-organic frameworks for electrochemical reduction of carbon dioxide: The role of metal centers

2020 ◽  
Vol 40 ◽  
pp. 156-170 ◽  
Author(s):  
Ping Shao ◽  
Luocai Yi ◽  
Shumei Chen ◽  
Tianhua Zhou ◽  
Jian Zhang
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Metal Organic Frameworks ◽  
Metal Centers ◽  
Metal Organic

Role of a 3D Structure in Energy Transfer in Mixed-Ligand Metal–Organic Frameworks

2021 ◽  
Author(s):  
Shaunak M. Shaikh ◽  
Stefan Ilic ◽  
Bradley J. Gibbons ◽  
Xiaozhou Yang ◽  
Elena Jakubikova ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Metal Organic Frameworks ◽  
3D Structure ◽  
Mixed Ligand ◽  
Metal Organic

Surviving Under Pressure: The Role of Solvent, Crystal Size, and Morphology During Pelletization of Metal–Organic Frameworks

2021 ◽  
Author(s):  
Timothy C. Wang ◽  
Ashley M. Wright ◽  
William J. Hoover ◽  
Kevin J. Stoffel ◽  
Rachelle K. Richardson ◽  
...  
Keyword(s):  
Crystal Size ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Size And Morphology ◽  
Role Of Solvent
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