Humidity‐Resistive Triboelectric Nanogenerator Fabricated Using Metal Organic Framework Composite

2019 ◽  
Vol 29 (20) ◽  
pp. 1807655 ◽  
Author(s):  
Rongmei Wen ◽  
Junmeng Guo ◽  
Aifang Yu ◽  
Junyi Zhai ◽  
Zhong lin Wang
Keyword(s):  
Metal Organic Framework ◽  
Triboelectric Nanogenerator ◽  
Metal Organic ◽  
Organic Framework

Highly stable metal-organic framework UiO-66-NH2 for high-performance triboelectric nanogenerators

2021 ◽  
Author(s):  
Yong-Mei Wang ◽  
Xinxin Zhang ◽  
Dingyi Yang ◽  
Liting Wu ◽  
Jiaojiao Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
Triboelectric Nanogenerator ◽  
High Porosity ◽  
Chemically Modified ◽  
Metal Organic ◽  
Triboelectric Nanogenerators ◽  
Organic Framework

Abstract The high porosity, controllable size, high surface area, and chemical versatility of a metal-organic framework (MOF) enable it a good material for a triboelectric nanogenerator (TENG), and some MOFs have been incorporated in the fabrication of TENGs. However, the understanding of effects of MOFs on the energy conversion of a TENG is still lacking, which inhibits the improvement of the performance of MOF-based TENGs. Here, UiO-66-NH2 MOFs were found to significantly increase the power of a TENG and the mechanism was carefully examined. The electron-withdrawing ability of Zr-based UiO-66-family MOFs was enhanced by designing the amino functionalized 1,4-terephthalic acid (1,4-BDC) as ligand. The chemically modified UiO-66-NH2 was found to increase the surface roughness and surface potential of a composite film with MOFs embedded in polydimethylsiloxane (PDMS) matrix. Thus the total charges due to the contact electrification increased significantly. The composite-based TENG was found to be very durable and its output voltage and current were 4 times and 60 times higher than that of a PDMS-based TENG. This work revealed an effective strategy to design MOFs with excellent electron-withdrawing abilities for high-performance TENGs.

scholarly journals Biodegradable metal-organic framework MIL-88A for triboelectric nanogenerator

iScience ◽  
2021 ◽  
Vol 24 (2) ◽  
pp. 102064
Author(s):  
Gaurav Khandelwal ◽  
Nirmal Prashanth Maria Joseph Raj ◽  
Venkateswaran Vivekananthan ◽  
Sang-Jae Kim
Keyword(s):  
Metal Organic Framework ◽  
Triboelectric Nanogenerator ◽  
Biodegradable Metal ◽  
Metal Organic ◽  
Organic Framework

Metal–Organic Framework: A Novel Material for Triboelectric Nanogenerator–Based Self‐Powered Sensors and Systems

2019 ◽  
Vol 9 (14) ◽  
pp. 1803581 ◽  
Author(s):  
Gaurav Khandelwal ◽  
Arunkumar Chandrasekhar ◽  
Nirmal Prashanth Maria Joseph Raj ◽  
Sang‐Jae Kim
Keyword(s):  
Metal Organic Framework ◽  
Triboelectric Nanogenerator ◽  
Novel Material ◽  
Metal Organic ◽  
Self Powered ◽  
Organic Framework

Growth‐Controllable Triboelectric Nanogenerator Based on Surface‐Attached Metal‐Organic Framework Layer on Living Leaf

Small ◽  
2021 ◽  
pp. 2103430
Author(s):  
Xunjia Li ◽  
Chengmei Jiang ◽  
Yao Yao ◽  
Qi Zhang ◽  
Shufen Dai ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Triboelectric Nanogenerator ◽  
Metal Organic ◽  
Living Leaf ◽  
Organic Framework

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>

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