Metal–organic framework derived petal-like Co3O4@CoNi2S4 hybrid on carbon cloth with enhanced performance for supercapacitors

2020 ◽  
Vol 7 (6) ◽  
pp. 1428-1436 ◽  
Author(s):  
Dandan Han ◽  
Jinhe Wei ◽  
Yuan Zhao ◽  
Ye Shen ◽  
Yifan Pan ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Core Shell ◽  
Carbon Cloth ◽  
Step Method ◽  
Metal Organic ◽  
Organic Framework

Starting from 2D Co-based metal-organic frameworks, novel petal-like core-shell Co3O4@CoNi2S4 nanowall arrays are synthesized on carbon cloth using a facile two-step method and investigated as promising electrode materials for supercapacitors.

Rationally constructing hierarchical two-dimensional NiCo metal-organic framework/graphene hybrid for highly efficient Li+ ions storage

2021 ◽  
Author(s):  
Jun Jin ◽  
You-fang Zhang ◽  
Huanwen Wang ◽  
Yansheng Gong ◽  
Rui Wang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Porous Carbon ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Highly Efficient ◽  
Metal Organic ◽  
Organic Framework

Recently, metal–organic frameworks (MOFs) have been used to synthesize electrode materials such as porous carbon, metal oxides, and metal chalcogenides or directly utilized as electrodes. However, pristine MOF electrodes suffer...

Lysozyme-mediated fabrication of well-defined core–shell nanoparticle@metal–organic framework nanocomposites

2017 ◽  
Vol 5 (39) ◽  
pp. 20765-20770 ◽  
Author(s):  
Ke Wang ◽  
Nan Li ◽  
Xiaoman Hai ◽  
Fuquan Dang
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Core Shell ◽  
Metal Organic ◽  
Self Assembled ◽  
Organic Framework

We report a versatile strategy based on self-assembled lysozymes (LYZs) to prepare core–shell nanocomposites with nanoparticles (NPs) in metal–organic frameworks (MOFs).

Metal–organic-framework-derived ZnO@C@NiCo2O4 core–shell structures as an advanced electrode for high-performance supercapacitors

2016 ◽  
Vol 4 (21) ◽  
pp. 8233-8241 ◽  
Author(s):  
Wei Zeng ◽  
Lei Wang ◽  
Huimin Shi ◽  
Guanhua Zhang ◽  
Kang Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Shell Structures ◽  
Core Shell ◽  
Carbon Cloth ◽  
Electrodeposition Method ◽  
Metal Organic ◽  
Unique Core ◽  
Organic Framework

Unique core–shell ZnO@C@NiCo2O4 nanorod sheet arrays (NRSAs) on a carbon cloth substrate were synthesized through a facile hydrothermal and electrodeposition method.

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>

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.

scholarly journals Crystal growth of the core and rotated epitaxial shell of a heterometallic metal-organic framework revealed with atomic force microscopy

2021 ◽  
Author(s):  
Fajar Inggit Pambudi ◽  
Michael William Anderson ◽  
Martin Attfield
Keyword(s):  
Atomic Force Microscopy ◽  
Crystal Growth ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Force Microscopy ◽  
The Core ◽  
Atomic Force ◽  
Metal Organic ◽  
Surface Crystal ◽  
Organic Framework

Atomic force microscopy has been used to determine the surface crystal growth of two isostructural metal-organic frameworks, [Zn2(ndc)2(dabco)] (ndc = 1,4-naphthalene dicarboxylate, dabco = 4-diazabicyclo[2.2.2]octane) (1) and [Cu2(ndc)2(dabco)] (2) from...

Phytic acid functionalized magnetic bimetallic metal–organic frameworks for phosphopeptide enrichment

2021 ◽  
Vol 9 (7) ◽  
pp. 1811-1820
Author(s):  
Shuang Yan ◽  
Bin Luo ◽  
Jia He ◽  
Fang Lan ◽  
Yao Wu
Keyword(s):  
Phytic Acid ◽  
Efficient Method ◽  
High Selectivity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Sensitivity ◽  
Phosphopeptide Enrichment ◽  
Metal Organic ◽  
Organic Framework

Novel bimetallic metal–organic framework nanocomposites were fabricated by a facile yet efficient method. The as-prepared nanomaterial exhibited high sensitivity and high selectivity toward phosphopeptides and good reusability of five cycles for enriching phosphopeptides.

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