The chemistry and applications of hafnium and cerium(iv) metal–organic frameworks

2021 ◽  
Vol 50 (7) ◽  
pp. 4629-4683
Author(s):  
Zhigang Hu ◽  
Yuxiang Wang ◽  
Dan Zhao
Keyword(s):  
Metal Organic Frameworks ◽  
Practical Applications ◽  
Holistic Perspective ◽  
Metal Organic

This review offers a holistic perspective on Hf and Ce(iv) based metal–organic frameworks (MOFs), with a focus on Hf/Ce(iv)-clusters, topologies, ligand structures, synthetic strategies, and practical applications of these promising MOFs.

Binder-Free mechanochemical metal-organic framework nanocrystal coatings

Nanoscale ◽  
2022 ◽  
Author(s):  
Rijia Lin ◽  
Yuqi Yao ◽  
Muhammad Yazid Bin Zulkifli ◽  
Xuemei Li ◽  
Shuai Gao ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Practical Applications ◽  
Metal Organic ◽  
Binder Free ◽  
Organic Framework

The practical applications of metal-organic frameworks (MOFs) usually require their assembly into mechanically robust structures, usually achieved via coating onto various types of substrates. This paper describes a simple, scalable,...

scholarly journals Poly(ionic liquid)-Modified Metal Organic Framework for Carbon Dioxide Adsorption

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 370 ◽  
Author(s):  
Guangyuan Yang ◽  
Jialin Yu ◽  
Sanwen Peng ◽  
Kuang Sheng ◽  
Haining Zhang
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Composite Materials ◽  
Metal Organic Frameworks ◽  
Carbon Dioxide Partial Pressure ◽  
Carbon Dioxide Adsorption ◽  
Solid Sorbent ◽  
Practical Applications ◽  
Metal Organic ◽  
Poly Ionic Liquid

The design and synthesis of solid sorbents for effective carbon dioxide adsorption are essential for practical applications regarding carbon emissions. Herein, we report the synthesis of composite materials consisting of amine-functionalized imidazolium-type poly(ionic liquid) (PIL) and metal organic frameworks (MOFs) through complexation of amino groups and metal ions. The carbon dioxide adsorption behavior of the synthesized composite materials was evaluated using the temperature-programmed desorption (TPD) technique. Benefiting from the large surface area of metal organic frameworks and high carbon dioxide diffusivity in ionic liquid moieties, the carbon dioxide adsorption capacity of the synthesized composite material reached 19.5 cm3·g−1, which is much higher than that of pristine metal organic frameworks (3.1 cm3·g−1) under carbon dioxide partial pressure of 0.2 bar at 25 °C. The results demonstrate that the combination of functionalized poly(ionic liquid) with metal organic frameworks can be a promising solid sorbent for carbon dioxide adsorption.

Governing metal–organic frameworks towards high stability

2016 ◽  
Vol 52 (55) ◽  
pp. 8501-8513 ◽  
Author(s):  
Na Li ◽  
Jian Xu ◽  
Rui Feng ◽  
Tong-Liang Hu ◽  
Xian-He Bu
Keyword(s):  
Chemical Composition ◽  
High Stability ◽  
Metal Organic Frameworks ◽  
Crucial Issue ◽  
Practical Applications ◽  
Metal Organic ◽  
The Stability

Stability of MOFs is a crucial issue for their practical applications, which might be improved by varying their chemical composition and/or structurally tuning them. Several strategies for enhancing the stability of MOFs were provided.

scholarly journals Isoreticular zirconium-based metal–organic frameworks: discovering mechanical trends and elastic anomalies controlling chemical structure stability

2016 ◽  
Vol 18 (13) ◽  
pp. 9079-9087 ◽  
Author(s):  
Matthew R. Ryder ◽  
Bartolomeo Civalleri ◽  
Jin-Chong Tan
Keyword(s):  
Mechanical Properties ◽  
Chemical Structure ◽  
Metal Organic Frameworks ◽  
Structure Stability ◽  
Practical Applications ◽  
Open Framework ◽  
Metal Organic ◽  
Fundamental Research ◽  
Elastic Anomalies ◽  
Framework Compounds

Understanding the mechanical properties of MOFs is crucial not only to yield robust practical applications, but also to advance fundamental research underpinning flexibility of a myriad of open-framework compounds.

Nanocomposite Synthesis Strategies Based on the Transformation of Well-Tailored Metal–Organic Frameworks

2021 ◽  
Author(s):  
Jae Hwa Lee ◽  
Min Hyuk Kim ◽  
Hoi Ri Moon
Keyword(s):  
Chemical Composition ◽  
Metal Organic Frameworks ◽  
Practical Applications ◽  
Metal Organic ◽  
Significant Attention

Increasing the complexity of nanomaterials in terms of their structure and chemical composition has attracted significant attention, because it can yield unique scientific outcomes and considerable improvements for practical applications....

scholarly journals Applications of Cyclodextrins Modified/Coated Metal–Organic Frameworks

2020 ◽  
Author(s):  
Huacheng Zhang
Keyword(s):  
Aqueous Solutions ◽  
Metal Organic Frameworks ◽  
Physiochemical Properties ◽  
Practical Applications ◽  
Extraction And Separation ◽  
Hybrid Delivery ◽  
Coated Metal ◽  
Metal Organic ◽  
Noncovalent Bonds ◽  
External Stimuli

The introduction of cyclodextrins (CDs) via noncovalent bonds could improve various physiochemical properties of metal-organic frameworks (MOFs) and expand their practical applications in aqueous solutions, for example, biocompatible CDs could improve the solubility of CDs-coated MOFs as a hybrid delivery system. And external-stimuli responsiveness of CDs-coated MOFs is key for widening applications in controlled drug releasing system, catalysis, detection, extraction and separation.

scholarly journals Engineering Metal–Organic Frameworks (MOFs) for Controlled Delivery of Physiological Gaseous Transmitters

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1134
Author(s):  
Mengdan Zhang ◽  
Ruirui Qiao ◽  
Jinming Hu
Keyword(s):  
Metal Organic Frameworks ◽  
Signaling Molecules ◽  
Practical Applications ◽  
Porous Nanostructures ◽  
Surface Areas ◽  
Potential Applications ◽  
Gaseous Transmitters ◽  
Long Time ◽  
Metal Organic ◽  
Covalently Linked

Metal–organic frameworks (MOFs) comprising metal ions or clusters coordinated to organic ligands have become a class of emerging materials in the field of biomedical research due to their bespoke compositions, highly porous nanostructures, large surface areas, good biocompatibility, etc. So far, many MOFs have been developed for imaging and therapy purposes. The unique porous nanostructures render it possible to adsorb and store various substances, especially for gaseous molecules, which is rather challenging for other types of delivery vectors. In this review, we mainly focus on the recent development of MOFs for controlled release of three gaseous transmitters, namely, nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S). Although these gaseous molecules have been known as air pollutants for a long time, much evidence has been uncovered regarding their important physiological functions as signaling molecules. These signaling molecules could be either physically absorbed onto or covalently linked to MOFs, allowing for the release of loaded signaling molecules in a spontaneous or controlled manner. We highlight the designing concept by selective examples and display their potential applications in many fields such as cancer therapy, wound healing, and anti-inflammation. We hope more effort could be devoted to this emerging fields to develop signaling molecule-releasing MOFs with practical applications.

scholarly journals The function of metal–organic frameworks in the application of MOF-based composites

2020 ◽  
Vol 2 (7) ◽  
pp. 2628-2647 ◽  
Author(s):  
Luning Chen ◽  
Xibo Zhang ◽  
Xiqing Cheng ◽  
Zhaoxiong Xie ◽  
Qin Kuang ◽  
...  
Keyword(s):  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Practical Applications ◽  
Metal Organic ◽  
Relationship Of

In this review, recent progress in MOF-based composites was summarized with an effort to clarify the structure–performance relationship of MOF-based composites, with particular emphasis on the functions of MOF components for practical applications.

scholarly journals Facile and reversible digestion and regeneration of zirconium-based metal-organic frameworks

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Jun Chu ◽  
Fu-Sheng Ke ◽  
Yunxiao Wang ◽  
Xiangming Feng ◽  
Weihua Chen ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Pd Nanoparticles ◽  
X Ray Diffraction ◽  
Raman Scattering Spectroscopy ◽  
X Ray ◽  
Practical Applications ◽  
Metal Organic ◽  
Environmental Decontamination ◽  
Carbonate Salts ◽  
Regeneration Processes

AbstractThe digestion/regeneration of metal-organic frameworks (MOFs) has important applications for catalysis, drug delivery, environmental decontamination, and energy storage, among other applications. However, research in this direction is limited and very challenging. Here, we develop a facile method to digest and regenerate a series of zirconium-based metal-organic frameworks (Zr-MOFs) by bicarbonate or carbonate salts. As an example, UiO-66 demonstrates well the mechanism of reversible digestion/regeneration processes. By analyzing the digested zirconium species via X-ray diffraction, Fourier transform infrared spectroscopy and Raman scattering spectroscopy, a digestion mechanism based on the formation of dissoluble complexes [Zr2(OH)2(CO3)4]2− is proposed. Impressively, ultrafine Pd nanoparticles can be extracted from Pd@PCN-224 via this strategy. This work, thus, may provide new insight for the development of renewable MOFs and their practical applications.

scholarly journals Recent Advances in Photocatalytic CO2 Utilisation Over Multifunctional Metal–Organic Frameworks

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1176
Author(s):  
Priyanka Verma ◽  
Daniel J. Stewart ◽  
Robert Raja
Keyword(s):  
Noble Metal ◽  
Metal Organic Frameworks ◽  
Value Added ◽  
Structure Property ◽  
Research Attention ◽  
Practical Applications ◽  
Efficient Charge ◽  
Metal Organic ◽  
Carbon Dioxide Co2 ◽  
Reduction Of Co2

The efficient conversion of carbon dioxide (CO2) to high-value chemicals using renewable solar energy is a highly attractive but very challenging process that is used to address ever-growing energy demands and environmental issues. In recent years, metal–organic frameworks (MOFs) have received significant research attention owing to their tuneability in terms of their composition, structure, and multifunctional characteristics. The functionalisation of MOFs by metal nanoparticles (NPs) is a promising approach used to enhance their light absorption and photocatalytic activity. The efficient charge separation and strong CO2 binding affinity of hybrid MOF-based photocatalysts facilitate the CO2 conversion process. This review summarises the latest advancements involving noble metal, non-noble-metal, and miscellaneous species functionalised MOF-based hybrid photocatalysts for the reduction of CO2 to carbon monoxide (CO) and other value-added chemicals. The novel synthetic strategies and their corresponding structure–property relationships have also been discussed for solar-to-chemical energy conversion. Furthermore, the current challenges and prospects in practical applications are also highlighted for sustainable energy production.

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