Suppressing Nonradiative Processes of Organic Dye with Metal–Organic Framework Encapsulation toward Near-Infrared Solid-State Microlasers

2018 ◽  
Vol 10 (41) ◽  
pp. 35455-35461 ◽  
Author(s):  
Yuan Liu ◽  
Haiyun Dong ◽  
Kang Wang ◽  
Zhenhua Gao ◽  
Chunhuan Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Near Infrared ◽  
Metal Organic Framework ◽  
Organic Dye ◽  
Metal Organic ◽  
Nonradiative Processes ◽  
Organic Framework

scholarly journals Electrochemically addressable trisradical rotaxanes organized within a metal–organic framework

2015 ◽  
Vol 112 (36) ◽  
pp. 11161-11168 ◽  
Author(s):  
Paul R. McGonigal ◽  
Pravas Deria ◽  
Idan Hod ◽  
Peyman Z. Moghadam ◽  
Alyssa-Jennifer Avestro ◽  
...  
Keyword(s):  
Solid State ◽  
Near Infrared ◽  
De Novo ◽  
Metal Organic Framework ◽  
Paramagnetic Resonance ◽  
Interlocked Molecules ◽  
Redox Active ◽  
Metal Organic ◽  
Electron Paramagnetic ◽  
Organic Framework

The organization of trisradical rotaxanes within the channels of a Zr6-based metal–organic framework (NU-1000) has been achieved postsynthetically by solvent-assisted ligand incorporation. Robust ZrIV–carboxylate bonds are forged between the Zr clusters of NU-1000 and carboxylic acid groups of rotaxane precursors (semirotaxanes) as part of this building block replacement strategy. Ultraviolet–visible–near-infrared (UV-Vis-NIR), electron paramagnetic resonance (EPR), and 1H nuclear magnetic resonance (NMR) spectroscopies all confirm the capture of redox-active rotaxanes within the mesoscale hexagonal channels of NU-1000. Cyclic voltammetry measurements performed on electroactive thin films of the resulting material indicate that redox-active viologen subunits located on the rotaxane components can be accessed electrochemically in the solid state. In contradistinction to previous methods, this strategy for the incorporation of mechanically interlocked molecules within porous materials circumvents the need for de novo synthesis of a metal–organic framework, making it a particularly convenient approach for the design and creation of solid-state molecular switches and machines. The results presented here provide proof-of-concept for the application of postsynthetic transformations in the integration of dynamic molecular machines with robust porous frameworks.

scholarly journals HKUST-1@IL-Li Solid-state Electrolyte with 3D Ionic Channels and Enhanced Fast Li+ Transport for Lithium Metal Batteries at High Temperature

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 736
Author(s):  
Man Li ◽  
Tao Chen ◽  
Seunghyun Song ◽  
Yang Li ◽  
Joonho Bae
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid Electrolyte ◽  
Metal Organic Framework ◽  
Ionic Channels ◽  
Transference Numbers ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Metal Organic ◽  
Organic Framework

The challenge of safety problems in lithium batteries caused by conventional electrolytes at high temperatures is addressed in this study. A novel solid electrolyte (HKUST-1@IL-Li) was fabricated by immobilizing ionic liquid ([EMIM][TFSI]) in the nanopores of a HKUST-1 metal–organic framework. 3D angstrom-level ionic channels of the metal–organic framework (MOF) host were used to restrict electrolyte anions and acted as “highways” for fast Li+ transport. In addition, lower interfacial resistance between HKUST-1@IL-Li and electrodes was achieved by a wetted contact through open tunnels at the atomic scale. Excellent high thermal stability up to 300 °C and electrochemical properties are observed, including ionic conductivities and Li+ transference numbers of 0.68 × 10-4 S·cm-1 and 0.46, respectively, at 25 °C, and 6.85 × 10-4 S·cm-1 and 0.68, respectively, at 100 °C. A stable Li metal plating/stripping process was observed at 100 °C, suggesting an effectively suppressed growth of Li dendrites. The as-fabricated LiFePO4/HKUST-1@IL-Li/Li solid-state battery exhibits remarkable performance at high temperature with an initial discharge capacity of 144 mAh g-1 at 0.5 C and a high capacity retention of 92% after 100 cycles. Thus, the solid electrolyte in this study demonstrates promising applicability in lithium metal batteries with high performance under extreme thermal environmental conditions.

Li-based MOF-derived multifunctional PEO polymer solid-state electrolyte for lithium energy storage

2022 ◽  
Author(s):  
Xiang Han ◽  
Tiantian Wu ◽  
Lanhui Gu ◽  
Dian Tian
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Isophthalic Acid ◽  
Solid State Electrolyte ◽  
Metal Organic ◽  
Solvothermal Conditions ◽  
Organic Framework

A three-dimensional (3D) metal-organic framework containing Li-oxygen clusters, namely {[Li2(IPA)]·DMF}n (1) (H2IPA = isophthalic acid), has been constructed under solvothermal conditions. The Li-based MOF can be applied to lithium energy...

scholarly journals Impact of nanosizing a host matrix based on a metal–organic framework on solid-state fluorescence emission and energy transfer

2022 ◽  
Author(s):  
Hikaru Sakamoto ◽  
Akitaka Ito ◽  
Masataka Ohtani
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Metal Organic Framework ◽  
Fluorescence Emission ◽  
Dye Molecules ◽  
Host Matrix ◽  
Metal Organic ◽  
Solid State Fluorescence ◽  
Organic Framework

We demonstrate that the nanosize effect appears to affect the properties of dye molecules encapsulated in the pores of a metal–organic framework (dye@MOF). The emissive properties of the nanosized dye@MOF...

A post-synthetic approach triggers selective and reversible sulphur dioxide adsorption on a metal–organic framework

2018 ◽  
Vol 54 (65) ◽  
pp. 9063-9066 ◽  
Author(s):  
Marta Mon ◽  
Estefanía Tiburcio ◽  
Jesús Ferrando-Soria ◽  
Rodrigo Gil San Millán ◽  
Jorge A. R. Navarro ◽  
...  
Keyword(s):  
Solid State ◽  
Cation Exchange ◽  
Sulphur Dioxide ◽  
Metal Organic Framework ◽  
Exchange Process ◽  
Synthetic Approach ◽  
Metal Organic ◽  
Organic Framework

We report the application of a post-synthetic solid-state cation-exchange process to afford a novel 3D MOF with hydrated barium cations hosted at pores able to trigger selective and reversible SO2adsorption.

Dual-wavelength lasing from organic dye encapsulated metal–organic framework microcrystals

2019 ◽  
Vol 55 (24) ◽  
pp. 3445-3448 ◽  
Author(s):  
Yue Zhang ◽  
Haiyun Dong ◽  
Yuan Liu ◽  
Chunhuan Zhang ◽  
Fengqin Hu ◽  
...  
Keyword(s):  
Organic Dyes ◽  
Metal Organic Framework ◽  
Organic Dye ◽  
Dual Wavelength ◽  
Metal Organic ◽  
Organic Framework

Efficient and stable dual-wavelength microlasers are obtained by simultaneously incorporating two kinds of organic dyes into metal–organic framework microcrystals.

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