Electrically bistable Ag nanocrystal-embedded metal–organic framework microneedles

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64885-64889 ◽  
Author(s):  
Keum Hwan Park ◽  
Mun Ho Kim ◽  
Sang Hyuk Im ◽  
O Ok Park
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Polyol Process ◽  
Synthetic Method ◽  
One Pot ◽  
Metal Organic ◽  
Organic Framework

Electrically bistable Ag nanocrystal-embedded metal–organic frameworks (MOF) were synthesized using a one-pot synthetic method by introducing melamine into a polyol process for the synthesis of Ag nanocrystals.

Facile synthesis of metal–organic framework-derived SiW12@Co3O4 and its peroxidase-like activity in colorimetric assay

The Analyst ◽  
2019 ◽  
Vol 144 (18) ◽  
pp. 5455-5461 ◽  
Author(s):  
Wei Shi ◽  
Shuang E ◽  
Meng-Meng Wang ◽  
Tian-Ze Li ◽  
Ting Yang ◽  
...  
Keyword(s):  
Colorimetric Assay ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Glucose Detection ◽  
Facile Synthesis ◽  
One Pot ◽  
Metal Organic ◽  
Excellent Stability ◽  
Organic Framework

Metal–organic frameworks-derived SiW12@Co3O4 with a highly inherent peroxidase-like activity and excellent stability was synthesized. A SiW12@Co3O4-based method was successfully developed for H2O2 and one-pot glucose detection.

Cu/TiO2 octahedral-shell photocatalysts derived from metal–organic framework@semiconductor hybrid structures

2016 ◽  
Vol 3 (1) ◽  
pp. 104-110 ◽  
Author(s):  
Rui Li ◽  
Sikai Wu ◽  
Xueying Wan ◽  
Hangxun Xu ◽  
Yujie Xiong
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Hybrid Structures ◽  
Synthetic Method ◽  
Hollow Structures ◽  
Treatment Conditions ◽  
Metal Organic ◽  
Organic Framework

A synthetic method has been developed for Cu/TiO2 photocatalysts with hollow structures by templating on metal–organic frameworks (MOFs), which offers versatility to tailor the photocatalyst configurations by simply altering treatment conditions on MOFs.

scholarly journals Phase-enabled metal-organic framework homojunction for highly selective CO2 photoreduction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yannan Liu ◽  
Chuanshuang Chen ◽  
Jesus Valdez ◽  
Debora Motta Meira ◽  
Wanting He ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
One Pot ◽  
Photocatalytic Application ◽  
The Hierarchical Structure ◽  
Visible Light Driven ◽  
Carbon Monooxide ◽  
Metal Organic ◽  
Promising Solution ◽  
Organic Framework

AbstractConversion of clean solar energy to chemical fuels is one of the promising and up-and-coming applications of metal–organic frameworks. However, fast recombination of photogenerated charge carriers in these frameworks remains the most significant limitation for their photocatalytic application. Although the construction of homojunctions is a promising solution, it remains very challenging to synthesize them. Herein, we report a well-defined hierarchical homojunction based on metal–organic frameworks via a facile one-pot synthesis route directed by hollow transition metal nanoparticles. The homojunction is enabled by two concentric stacked nanoplates with slightly different crystal phases. The enhanced charge separation in the homojunction was visualized by in-situ surface photovoltage microscopy. Moreover, the as-prepared nanostacks displayed a visible-light-driven carbon dioxide reduction with very high carbon monooxide selectivity, and excellent stability. Our work provides a powerful platform to synthesize capable metal–organic framework complexes and sheds light on the hierarchical structure-function relationships of metal–organic frameworks.

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 One-pot coating of LiCoPO4/C by a UiO-66 metal–organic framework

RSC Advances ◽  
2020 ◽  
Vol 10 (58) ◽  
pp. 35206-35213
Author(s):  
Abdelaziz M. Aboraia ◽  
Viktor V. Shapovalov ◽  
Alexnader A. Guda ◽  
Vera V. Butova ◽  
Alexander Soldatov
Keyword(s):  
Cathode Material ◽  
Electrochemical Properties ◽  
High Voltage ◽  
Metal Organic Framework ◽  
One Pot ◽  
Metal Organic ◽  
Organic Framework

LiCoPO4 (LCP) is a promising high voltage cathode material but suffers from low conductivity and poor electrochemical properties.

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.

scholarly journals Isomerization of glucose to fructose catalyzed by metal-organic framework

2021 ◽  
Author(s):  
Marta Lara-Serrano ◽  
Silvia Morales-delaRosa ◽  
Jose M. Campos-Martin ◽  
Víctor Karim Abdelkader-Fernández ◽  
Luis Cunha-Silva ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Isomerization Reaction ◽  
Metal Organic ◽  
Organic Framework

The isomerization reaction of glucose to fructose was studied using five selected metal-organic frameworks (MOFs) as catalysts and a mixture of γ-valerolactone and 10% H2O as the solvent. MOFs with...

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