Metal/metal oxide nanostructures derived from metal–organic frameworks

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7267-7279 ◽  
Author(s):  
Yonghai Song ◽  
Xia Li ◽  
Lanlan Sun ◽  
Li Wang
Keyword(s):  
Composite Materials ◽  
Metal Oxide ◽  
Metal Organic Frameworks ◽  
Oxide Nanostructures ◽  
Metal Metal ◽  
Metal Oxide Nanostructures ◽  
Potential Applications ◽  
Metal Organic

MOFs-derived micro/nanostructures have important potential applications. In this review, we describe the use of MOFs as templates in the synthesis of metal/metal oxide micro/nanostructures and composite materials. The applications of the derived materials are also reviewed.

Hierarchical flowerlike metal/metal oxide nanostructures derived from layered double hydroxides for catalysis and gas sensing

2017 ◽  
Vol 5 (45) ◽  
pp. 23999-24010 ◽  
Author(s):  
Xiao Wang ◽  
Ruya Cao ◽  
Shouwei Zhang ◽  
Peiyu Hou ◽  
Ruxia Han ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Layered Double Hydroxides ◽  
Gas Sensing ◽  
Catalytic Reduction ◽  
Oxide Nanostructures ◽  
Metal Metal ◽  
Metal Oxide Nanostructures ◽  
Double Hydroxides

Peony-like Co/Al2O3 and Co3O4/Al2O3 composites were fabricated using CoAl–LDHs as self-sacrificial templates and exhibited remarkable catalytic reduction and gas sensing abilities.

scholarly journals Metal-Organic Frameworks to Metal/Metal Oxide Embedded Carbon Matrix: Synthesis, Characterization and Gas Sorption Properties

Materials ◽  
2015 ◽  
Vol 8 (8) ◽  
pp. 5336-5347 ◽  
Author(s):  
Jiun-Jen Chen ◽  
Ya-Ting Chen ◽  
Duraisamy Raja ◽  
Yu-Hao Kang ◽  
Pen-Chang Tseng ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Organic Frameworks ◽  
Carbon Matrix ◽  
Sorption Properties ◽  
Gas Sorption ◽  
Matrix Synthesis ◽  
Metal Metal ◽  
Metal Organic

Metal-Organic Frameworks as Proton Conductors: Strategies for Improved Proton Conductivity

2021 ◽  
Author(s):  
Kumar Biradha ◽  
Anindita Goswami ◽  
Rajib Moi ◽  
Subhajit Saha
Keyword(s):  
Composite Materials ◽  
Proton Conductivity ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
Proton Conductors ◽  
Potential Applications ◽  
Metal Organic

Recent studies on proton conductivity using pristine MOFs and their composite materials have established an outstanding area of research owing to their potential applications for the developments of high performance...

Growth of Metal-Metal Oxide Nanostructures on Freestanding Graphene Paper for Flexible Biosensors

2012 ◽  
Vol 22 (12) ◽  
pp. 2487-2494 ◽  
Author(s):  
Fei Xiao ◽  
Yuanqing Li ◽  
Xiaoli Zan ◽  
Kin Liao ◽  
Rong Xu ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxide Nanostructures ◽  
Metal Metal ◽  
Metal Oxide Nanostructures ◽  
Graphene Paper

scholarly journals Carbonized metal–organic frameworks with trapped cobalt nanoparticles as biocompatible and efficient azo-dye adsorbent

2019 ◽  
Vol 31 (1) ◽  
Author(s):  
Martyna Trukawka ◽  
Krzysztof Cendrowski ◽  
Magdalena Peruzynska ◽  
Adrian Augustyniak ◽  
Pawel Nawrotek ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Metal Organic Frameworks ◽  
Dye Adsorption ◽  
Cobalt Nanoparticles ◽  
Oxide Nanoparticles ◽  
Standard Entropy ◽  
Anionic Dye ◽  
Metal Metal ◽  
Metal Organic

Abstract Background Metal–organic frameworks (MOFs) derived carbonaceous materials functionalized with metal/metal-oxide nanoparticles are obtained by its carbonization. The carbonization of MOFs occurs simultaneously with the metal and metal-oxide particle formation. The carbon-based flake-like nanostructures with trapped metal/metal-oxide nanoparticles have been formed. Due to its non-toxicity and environmental friendliness, the capacity for pollution adsorption using model anionic dye has been revealed. Results The structure of the hybrid is formed as the effect of carbonization of metal–organic frameworks with cobalt as a metal counterpart (CoOF). The cobalt nanoparticles are placed between the carbon layers what limits the dissolution of cobalt nanoparticles and protects the environment from its toxicity. It is preliminary validated by means of two reference micro-organisms (Gram-negative Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus) and in in vitro analysis with human cell line (A375). The efficiency of the adsorption properties of the material was tested with Acid Red 18 as a model anionic dye. The mechanism of dye adsorption was analyzed in details. In addition, various thermodynamic parameters, such as standard enthalpy, standard entropy, and standard Gibbs free energy, were tested. In addition, it was proved that the main substrate of CoOF (terephthalic acid) can be used from PET bottles, while the organic solvent used in its synthesis (N,N-dimethylformamide) was distilled and reused. The obtained carbonized CoOF revealed the same morphology and properties as pristine material. Conclusions The kinetic data of dye adsorption fit well with the pseudo-second-order model and Langmuir type. Acid Red 18 adsorption is more favourable at lower temperatures and lower pH. The location of the cobalt nanoparticles between the carbon flakes effectively limits their toxicity compared to the free metal nanoparticles. The CoOF can be obtained from recycled substrates, which revealed the same morphology as pristine material. Therefore, it is believed that this work highlights the practical application of carbonized CoOF as an adsorbate and provides the evidence that such nanocomposite can be applied without environmental risks.

Facile synthesis of metal/metal oxide nanoparticles inside a nanoporous carbon matrix (M/MO@C) through the morphology-preserved transformation of metal–organic framework

2015 ◽  
Vol 51 (33) ◽  
pp. 7238-7241 ◽  
Author(s):  
Woojeong Bak ◽  
Hee Soo Kim ◽  
Hyungphil Chun ◽  
Won Cheol Yoo
Keyword(s):  
Metal Oxide ◽  
Metal Organic Framework ◽  
Metal Oxide Nanoparticles ◽  
Metal Organic Frameworks ◽  
Carbon Matrix ◽  
Carbon Composites ◽  
Particle Sizes ◽  
Facile Synthesis ◽  
Metal Metal ◽  
Metal Organic

Metal–organic frameworks (MOFs) undergo a simple, two-step process to form morphology-preserved metal/metal oxide@carbon composites with tunable porosity and particle sizes.

Controlled Growth of the Non-centrosymmetric Zn(3-ptz)2 and Zn(Oh)(3-ptz) Metal-organic Frameworks

2019 ◽  
Author(s):  
javier enriquez ◽  
Ignacio Chi-Duran ◽  
Carolina Manquian ◽  
Felipe Herrera ◽  
Ruben Fritz ◽  
...  
Keyword(s):  
Single Crystal ◽  
Nonlinear Optical ◽  
Metal Organic Frameworks ◽  
Molar Ratio ◽  
Thermal Synthesis ◽  
Small Crystals ◽  
Alkaline Environments ◽  
Potential Applications ◽  
Metal Organic ◽  
Long Rod

Non-centrosymmetric single-crystal metal-organic frameworks (MOF) are promising candidates for phase-matched nonlinear optical communication, but typical hydrothermal synthesis produces small crystals with relatively low transmittance and poor phase matching. We study the effect of the metal-to-ligand molar ratio and reaction pH on the hydro-thermal synthesis of the non-centrosymmetric Zn(3-ptz)<sub>2</sub> and Zn(OH)(3-ptz) MOFs with <i>in-situ </i>ligand formation. In acidic environments, we find that decreasing the amount of ligand below the stoichiometric molar ratio 1:2 also produces highly transparent single-crystal octahedrons of <b>Zn(3-ptz)<sub>2</sub></b>. In alkaline environments, we obtain long rod-like <b>Zn(OH)(3-ptz) </b>crystals whose length exceeds previous reports by up to four orders of magnitude. Potential applications of these results in the development of MOF-based nonlinear optical devices are discussed.

A direct solvent-free conversion approach to prepare mixed-metal metal–organic frameworks from doped metal oxides

2021 ◽  
Vol 57 (29) ◽  
pp. 3587-3590
Author(s):  
Beili Yi ◽  
Haojie Zhao ◽  
Yue Zhang ◽  
Xiaomeng Si ◽  
Guanqun Zhang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Mixed Metal ◽  
Synthesis Strategy ◽  
Metal Metal ◽  
Metal Organic

We propose a novel solvent-free conversion strategy of Pt–ZnO to Pt-ZIF-8. This synthesis strategy may facilitate the discovery of MMOFs that have not been reported previously.

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