Dye Encapsulated Metal-Organic Framework for Warm-White LED with High Color-Rendering Index

2015 ◽  
Vol 25 (30) ◽  
pp. 4796-4802 ◽  
Author(s):  
Yuanjing Cui ◽  
Tao Song ◽  
Jiancan Yu ◽  
Yu Yang ◽  
Zhiyu Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
White Led ◽  
Color Rendering Index ◽  
Metal Organic ◽  
Color Rendering ◽  
Organic Framework

Lanthanide cation encapsulated in a metal–organic framework as a white LED and selective naked-eye reversible HCl sensor

2019 ◽  
Vol 7 (10) ◽  
pp. 2880-2885 ◽  
Author(s):  
Huijun Li ◽  
Qingqing Li ◽  
Zhouqing Xu
Keyword(s):  
Ion Exchange ◽  
White Light ◽  
Metal Organic Framework ◽  
Exchange Process ◽  
White Led ◽  
Light Emitting ◽  
Naked Eye ◽  
Ion Exchange Process ◽  
Metal Organic ◽  
Organic Framework

A prepared anionic HPU-14, which was employed as a platform for loading green-emitting Tb3+ and red-emitting Eu3+ into nanotube channels of the blue-emitting MOF via an ion-exchange process, is suitable for white light-emitting LED devices and enables the sensitive colorimetric reversible detection of gaseous HCl.

Lanthanide organic–inorganic hybrids based on functionalized metal–organic frameworks (MOFs) for a near-UV white LED

2014 ◽  
Vol 50 (97) ◽  
pp. 15443-15446 ◽  
Author(s):  
Ye Lu ◽  
Bing Yan
Keyword(s):  
Quantum Yield ◽  
Hybrid Material ◽  
Metal Organic Frameworks ◽  
Color Temperature ◽  
White Led ◽  
High Quantum Yield ◽  
Inorganic Hybrid ◽  
Color Rendering Index ◽  
Metal Organic ◽  
Color Rendering

A novel near-UV white LED based on lanthanide organic–inorganic hybrid material is realized through postsynthetically modified MOFs and MOF-based polymers. The hybrids materials have high quantum yield and satisfactory luminescence stability; the assembled white LED has tuneable correlated color temperature and high color rendering index.

scholarly journals Rational design of a high-efficiency, multivariate metal–organic framework phosphor for white LED bulbs

2020 ◽  
Vol 11 (7) ◽  
pp. 1814-1824 ◽  
Author(s):  
William P. Lustig ◽  
Zeqing Shen ◽  
Simon J. Teat ◽  
Nasir Javed ◽  
Ever Velasco ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Rational Design ◽  
High Efficiency ◽  
Metal Organic Framework ◽  
White Led ◽  
Radiative Relaxation ◽  
Metal Organic ◽  
Organic Framework

Excitation of LMOF-305 with light polarized parallel to the c axis. Photon absorbance induces electron transfer from tcbpe to tcbpe-F, followed by emission resulting from radiative relaxation of the electron from tcbpe-F back to tcbpe.

Multifunctional metal–organic framework heterostructures for enhanced cancer therapy

2021 ◽  
Author(s):  
Jintong Liu ◽  
Jing Huang ◽  
Lei Zhang ◽  
Jianping Lei
Keyword(s):  
Cancer Therapy ◽  
General Principle ◽  
Biomedical Applications ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Functional Modulation ◽  
Organic Framework

We review the general principle of the design and functional modulation of nanoscaled MOF heterostructures, and biomedical applications in enhanced therapy.

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>

Solvent-Free Powder Synthesis and MOF-CVD Thin Films of the Mesoporous Metal-Organic Framework MAF-6

2019 ◽  
Author(s):  
Timothée Stassin ◽  
Ivo Stassen ◽  
Joao Marreiros ◽  
Alexander John Cruz ◽  
Rhea Verbeke ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Metal Organic Framework ◽  
Chemical Vapor ◽  
Uptake Capacity ◽  
Powder Synthesis ◽  
Crystalline Films ◽  
Metal Organic ◽  
Mesoporous Metal ◽  
First Time ◽  
Organic Framework

A simple solvent- and catalyst-free method is presented for the synthesis of the mesoporous metal-organic framework (MOF) MAF-6 (RHO-Zn(eIm)2) based on the reaction of ZnO with 2-ethylimidazole vapor at temperatures ≤ 100 °C. By translating this method to a chemical vapor deposition (CVD) protocol, mesoporous crystalline films could be deposited for the first time entirely from the vapor phase. A combination of PALS and Kr physisorption measurements confirmed the porosity of these MOF-CVD films and the size of the MAF-6 supercages (diam. ~2 nm), in close agreement with powder data and calculations. MAF-6 powders and films were further characterized by XRD, TGA, SEM, FTIR, PDF and EXAFS. The exceptional uptake capacity of the mesoporous MAF-6 in comparison to the microporous ZIF-8 is demonstrated by vapor-phase loading of a molecule larger than the ZIF-8 windows.

An Overview of Metal-organic Frameworks-based Acid/Base Catalysts for Biofuel Synthesis

2020 ◽  
Vol 24 (16) ◽  
pp. 1876-1891
Author(s):  
Qiuyun Zhang ◽  
Yutao Zhang ◽  
Jingsong Cheng ◽  
Hu Li ◽  
Peihua Ma
Keyword(s):  
Alternative Fuels ◽  
Heterogeneous Catalysts ◽  
Supported Catalysts ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Flexible Structures ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
Metal Organic ◽  
Organic Framework

Biofuel synthesis is of great significance for producing alternative fuels. Among the developed catalytic materials, the metal-organic framework-based hybrids used as acidic, basic, or supported catalysts play major roles in the biodiesel production. This paper presents a timely and comprehensive review of recent developments on the design and preparation of metal-organic frameworks-based catalysts used for biodiesel synthesis from various oil feedstocks, including MILs-based catalysts, ZIFs-based catalysts, UiO-based catalysts, Cu-BTC-based catalysts, and MOFs-derived porous catalysts. Due to their unique and flexible structures, excellent thermal and hydrothermal stability, and tunable host-guest interactions, as compared with other heterogeneous catalysts, metal-organic framework-based catalysts have good opportunities for application in the production of biodiesel at industrial scale.

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