scholarly journals Metal–organic frameworks for H2and CH4storage: insights on the pore geometry–sorption energetics relationship

IUCrJ ◽  
2017 ◽  
Vol 4 (2) ◽  
pp. 131-135 ◽  
Author(s):  
Mohamed H. Alkordi ◽  
Youssef Belmabkhout ◽  
Amy Cairns ◽  
Mohamed Eddaoudi
Keyword(s):  
Surface Area ◽  
Binding Affinity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Large Surface Area ◽  
Pore Geometry ◽  
Trade Off ◽  
Storage Media ◽  
Metal Organic ◽  
Low Pressures

This study aims to assess the possibility of improving H2and CH4binding affinity to the aromatic walls of a designed new Metal–Organic Framework (MOF) through simultaneous dispersive interactions. It is suggested here that desirable H2and CH4storage media at low pressures require narrow uniform pores associated with large surface area, a trade-off that is challenging to achieve.

Synthesis and effect of metal–organic frame works on CO2 adsorption capacity at various pressures: A contemplating review

2019 ◽  
Vol 31 (3) ◽  
pp. 367-388 ◽  
Author(s):  
Ayesha Rehman ◽  
Sarah Farrukh ◽  
Arshad Hussain ◽  
Erum Pervaiz
Keyword(s):  
Adsorption Capacity ◽  
Surface Area ◽  
Greenhouse Gas Emission ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Climatic Changes ◽  
Microwave Assisted Synthesis ◽  
Synthesis Methods ◽  
Metal Organic ◽  
Organic Framework

The most important environmental challenge that the world is facing today is the control of the quantity of CO2 in the atmosphere, because it causes global warming. Increase in the global temperature results in greenhouse gas emission, interruption of the volcanic activity, and climatic changes. The alarming rise of the CO2 level impels to take some serious action to control these climatic changes. Various techniques are being utilized to capture CO2. However, chemical absorption and adsorption are supposed to be the most suitable techniques for post-combustion CO2 capture, but the main focus is on adsorption. The aim of this study is to provide a brief overview on the CO2 adsorption by a novel class of adsorbents called the metal–organic framework. The metal–organic framework is a porous material having high surface area with high CO2 adsorption capacity. The metal–organic frameworks possess dynamic structure and have large capacity to adsorb CO2 at either low pressure or high pressure due to its cavity size and surface area. Adsorption of CO2 in the metal–organic framework at various pressures depends upon pore volume and heat of adsorption correspondingly. In this review, different synthesis methods of the metal–organic framework such as slow evaporation, solvo thermal, mechanochemical, electrochemical, sonochemical, and microwave-assisted synthesis are briefly described as the structure of the metal–organic frameworks are mostly dependent upon synthesis techniques. In addition to this, different strategies are discussed to increase the CO2 adsorption capacity in the metal organic-framework. [Formula: see text]

Microporous La-Metal-Organic Framework (MOF) with Large Surface Area

2014 ◽  
Vol 21 (7) ◽  
pp. 2789-2792 ◽  
Author(s):  
Souvik Pal ◽  
Asamanjoy Bhunia ◽  
Partha P. Jana ◽  
Subarna Dey ◽  
Jens Möllmer ◽  
...  
Keyword(s):  
Surface Area ◽  
Metal Organic Framework ◽  
Large Surface Area ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Remodelling a Shp: Transmetallation in a Rare-Earth Cluster-Based Metal–Organic Framework

2021 ◽  
Author(s):  
Hudson de Aguiar Bicalho ◽  
P. Rafael Donnarumma ◽  
Victor Quezada-Novoa ◽  
Hatem M. Titi ◽  
Ashlee J Howarth
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Surface Area ◽  
De Novo ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Exchange ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic

<div> <p>Post-synthetic modification (PSM) of metal–organic frameworks (MOFs) is an important strategy for accessing MOF analogues that cannot be easily synthesized <i>de novo</i>. In this work, the rare-earth (RE) cluster-based MOF, Y-CU-10, with <b>shp</b> topology was modified through transmetallation using a series of RE ions, including: La(III), Nd(III), Eu(III), Tb(III), Er(III), Tm(III), and Yb(III). In all cases, metal-exchange higher than 70 % was observed, with reproducible results. All transmetallated materials were fully characterized and compared to the parent MOF, Y-CU-10, in regards to crystallinity, surface area, and morphology. Additionally, single-crystal X-ray diffraction (SCXRD) measurements were performed to provide further evidence of transmetallation occurring in the nonanuclear cluster nodes of the MOF. </p> </div>

Megamerger of MOFs and g-C3N4 for energy and environment applications: upgrading the framework stability and performance

2020 ◽  
Vol 8 (35) ◽  
pp. 17883-17906 ◽  
Author(s):  
Gaoxia Zhang ◽  
Danlian Huang ◽  
Min Cheng ◽  
Lei Lei ◽  
Sha Chen ◽  
...  
Keyword(s):  
Pore Size ◽  
Surface Area ◽  
Metal Organic Frameworks ◽  
Large Surface Area ◽  
Energy And Environment ◽  
Metal Organic ◽  
And Performance

Metal–organic frameworks (MOFs) possess large surface area, adjustable pore size and synthetic adaptability which make them promising candidates for diverse applications.

A review on metal-organic framework-derived anode materials for potassium-ion batteries

2021 ◽  
Author(s):  
Qiongyi Xie ◽  
Hong Ou ◽  
Qingyun Yang ◽  
Xiaoming Lin ◽  
Akif Zeb ◽  
...  
Keyword(s):  
Energy Storage ◽  
Specific Surface ◽  
Surface Area ◽  
Anode Materials ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Specific Surface Area ◽  
Electrochemical Energy Storage ◽  
Energy Storage And Conversion ◽  
Metal Organic

In recent years, metal-organic frameworks (MOFs) have been widely used in various fields, including electrochemical energy storage and conversion because of their excellent properties, such as high specific surface area,...

scholarly journals Enhanced Fungicidal Efficacy by Co-Delivery of Azoxystrobin and Diniconazole with Cauliflower-Like Metal–Organic Frameworks NH2-Al-MIL-101

2021 ◽  
Vol 22 (19) ◽  
pp. 10412
Author(s):  
Huiping Chen ◽  
Yongpan Shan ◽  
Lidong Cao ◽  
Pengyue Zhao ◽  
Chong Cao ◽  
...  
Keyword(s):  
Surface Area ◽  
Plant Protection ◽  
Metal Organic Framework ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Release Time ◽  
Natural Ecosystems ◽  
Resistance Risk ◽  
Metal Organic

Long-term use of a single fungicide increases the resistance risk and causes adverse effects on natural ecosystems. Controlled release formulations of dual fungicides with different modes of action can afford a new dimension for addressing the current issues. Based on adjustable aperture and superhigh surface area, metal–organic frameworks (MOFs) are ideal candidates as pesticide release carriers. This study used Al3+ as the metal node and 2-aminoterephthalic acid as the organic chain to prepare aluminum-based metal–organic framework material (NH2-Al-MIL-101) with “cauliflower-like” structure and high surface area of 2359.0 m2/g. Fungicides of azoxystrobin (AZOX) and diniconazole (Dini) were simultaneously encapsulated into NH2-Al-MIL-101 with the loading content of 6.71% and 29.72%, respectively. Dual fungicide delivery system of AZOX@Dini@NH2-Al-MIL-101 demonstrated sustained and pH responsive release profiles. When the maximum cumulative release rate of AZOX and Dini both reached about 90%, the release time was 46 and 136 h, respectively. Furthermore, EC50 values as well as the percentage of inhibition revealed that AZOX@Dini@NH2-Al-MIL-101 had enhanced germicidal efficacy against rice sheath blight (Rhizoctonia solani), evidenced by the synergistic ratio of 1.83. The present study demonstrates a potential application prospect in sustainable plant protection through co-delivery fungicides with MOFs as a platform.

scholarly journals Understanding the Diversity of the Metal-Organic Framework Ecosystem

2020 ◽  
Author(s):  
Seyed Mohamad Moosavi ◽  
Aditya Nandy ◽  
Kevin Maik Jablonka ◽  
Daniele Ongari ◽  
Jon Paul Janet ◽  
...  
Keyword(s):  
Design Space ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Small Variation ◽  
Chemical Diversity ◽  
Pore Geometry ◽  
Existing Structures ◽  
New Information ◽  
Chemical Design ◽  
Metal Organic

By combining metal nodes and organic linkers one can make millions of different metal-organic frameworks (MOFs). At present over 90,000 MOFs have been synthesized and there are databases with over 500,000 predicted structures. This raises the question whether a new experimental or predicted structure adds new information. For MOF-chemists the chemical design space is a combination of pore geometry, metal nodes, organic linkers, and functional groups, but at present we do not have a formalism to quantify optimal coverage of chemical design space. In this work, we show how machine learning can be used to quantify similarities of MOFs. This quantification allows us to use techniques from ecology to analyse the chemical diversity of these materials in terms of diversity metrics. In particular, we show that this diversity analysis can identify biases in the databases, and how such bias can lead to incorrect conclusions. This formalism provides us with a simple and powerful practical guideline to see whether a set of new structures will have the potential for new insights, or constitute a relatively small variation of existing structures.

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