Silver nanoparticles prepared by gamma irradiation across metal–organic framework templates

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10707-10715 ◽  
Author(s):  
Li He ◽  
Ludovic F. Dumée ◽  
Dan Liu ◽  
Leonora Velleman ◽  
Fenghua She ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Gamma Irradiation ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Single Step ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

In this study, we demonstrate for the first time the successful fabrication of well-dispersed ultrafine silver nanoparticles inside metal–organic frameworks through a single step gamma irradiation at room temperature.

scholarly journals Framework disorder and its effect on selective hysteretic sorption of a T-shaped azole-based metal–organic framework

IUCrJ ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Sujuan Wang ◽  
Zhang-Wen Wei ◽  
Jianyong Zhang ◽  
Long Jiang ◽  
Dingxin Liu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Structural Disorder ◽  
Gas Sorption ◽  
Temperature Dependent ◽  
Disordered Structure ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

Metal–organic frameworks with highly ordered porosity have been studied extensively. In this paper, the effect of framework (pore) disorder on the gas sorption of azole-based isoreticular Cu(II) MOFs with rtl topology and characteristic 1D tubular pore channels is investigated for the first time. In contrast to other isoreticular rtl metal–organic frameworks, the Cu(II) metal–organic framework based on 5-(1H-imidazol-1-yl)isophthalate acid has a crystallographically identifiable disordered framework without open N-donor sites. The framework provides a unique example for investigating the effect of pore disorder on gas sorption that can be systematically evaluated. It exhibits remarkable temperature-dependent hysteretic CO2 sorption up to room temperature, and shows selectivity of CO2 over H2, CH4 and N2 at ambient temperature. The unique property of the framework is its disordered structure featuring distorted 1D tubular channels and DMF-guest-remediated defects. The results imply that structural disorder (defects) may play an important role in the modification of the performance of the material.

Metal–organic frameworks: a universal strategy towards super-elastic hydrogels

2019 ◽  
Vol 10 (18) ◽  
pp. 2263-2272 ◽  
Author(s):  
Huaizhi Liu ◽  
Hao Peng ◽  
Yumeng Xin ◽  
Jiuyang Zhang
Keyword(s):  
Drug Delivery ◽  
Mechanical Performance ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Loading ◽  
Loading Capacity ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

We reported for the first time using metal–organic framework (MOF) nanoparticles as effective nanofillers to significantly enhance the mechanical performance of hydrogels. The MOF hydrogels have been developed for drug delivery materials with high loading capacity and much extended drug releasing profiles.

Gas promotes the crystallization of nano-sized metal–organic frameworks in ionic liquid

2015 ◽  
Vol 51 (57) ◽  
pp. 11445-11448 ◽  
Author(s):  
Chengcheng Liu ◽  
Bingxing Zhang ◽  
Jianling Zhang ◽  
Li Peng ◽  
Xinchen Kang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Organic Framework

Gas can promote metal–organic framework (MOF) crystallization and MOF nanoparticles were obtained at room temperature.

scholarly journals Cu@Co-MOFs as a novel catalyst of peroxymonosulfate for the efficient removal of methylene blue

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9410-9420 ◽  
Author(s):  
Huanxuan Li ◽  
Shaodan Xu ◽  
Jia Du ◽  
Junhong Tang ◽  
Qingwei Zhou
Keyword(s):  
Methylene Blue ◽  
Hydrothermal Method ◽  
Metal Organic Framework ◽  
Single Step ◽  
Efficient Removal ◽  
Metal Organic ◽  
Novel Catalyst ◽  
First Time ◽  
Organic Framework

In this study, for the first time, we describe the single step synthesis of a Cu particle-doped cobalt-based metal–organic framework (Cu@Co-MOF) using a hydrothermal method.

Metal organic framework derived Nb2O5@C nanoparticles grown on reduced graphene oxide for high-energy lithium ion capacitors

2019 ◽  
Vol 55 (18) ◽  
pp. 2692-2695 ◽  
Author(s):  
Xinyan Jiao ◽  
Qingli Hao ◽  
Xifeng Xia ◽  
Zongdeng Wu ◽  
Wu Lei
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Lithium Ion ◽  
High Energy ◽  
Reduced Graphene ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

For the first time, M-Nb2O5@C/rGO composites are fabricated by annealing the precursor of GO supported Nb-metal organic frameworks.

A scalable formation of nano-SnO2 anode derived from tin metal–organic frameworks for lithium-ion battery

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 72825-72829 ◽  
Author(s):  
Zixu Sun ◽  
Can Cao ◽  
Wei-Qiang Han
Keyword(s):  
Lithium Ion Battery ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Lithium Ion ◽  
Metal Organic ◽  
Tin Metal ◽  
First Time ◽  
Organic Framework

In this work, for the first time, we synthesize a SnO2 nanomaterial through the calcination of tin metal–organic framework (MOF) precursors.

Defective metal–organic framework derivative by room-temperature exfoliation and reduction for highly efficient oxygen evolution reaction

2019 ◽  
Vol 7 (23) ◽  
pp. 14011-14018 ◽  
Author(s):  
Zehua Zou ◽  
Minmin Cai ◽  
Xiaohua Zhao ◽  
Junfeng Huang ◽  
Jing Du ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Highly Efficient ◽  
Metal Organic ◽  
Organic Framework

Metal–organic frameworks (MOFs) have been considered attractive precursors to fabricate functional MOF derivatives for oxygen evolution reactions (OER).

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>

Sign in / Sign up

Export Citation Format

Share Document