The Rise of Metal-Organic Frameworks for Electrolyte Applications

2021 ◽  
Author(s):  
Xia Hu ◽  
Qi Liu ◽  
Kui Lin ◽  
Cuipang Han ◽  
Baohua Li
Keyword(s):  
Chemical Composition ◽  
Pore Structure ◽  
Metal Organic Frameworks ◽  
Surface Functionality ◽  
Metal Organic

Metal−organic frameworks (MOFs) have been attracting a great attention for application in electrolytes. Benefiting from the controllable chemical composition, tunable pore structure and surface functionality, MOFs offer great opportunities for...

scholarly journals Porphyrin MOF-Derived Porous Carbons: Preparation and Applications

2021 ◽  
Vol 7 (2) ◽  
pp. 47
Author(s):  
Flávio Figueira ◽  
Filipe A. Almeida Paz
Keyword(s):  
Chemical Composition ◽  
Carbon Material ◽  
Metal Organic Frameworks ◽  
Electrochemical Reactions ◽  
Porous Carbon Material ◽  
Important Class ◽  
Porous Carbons ◽  
Preparation Methods ◽  
Crystalline Materials ◽  
Metal Organic

Metal–organic frameworks (MOFs) are crystalline materials with permanent porosity, composed of metal nodes and organic linkers whose well-ordered arrangement enables them to act as ideal templates to produce materials with a uniform distribution of heteroatom and metal elements. The hybrid nature of MOFs, well-defined pore structure, large surface area and tunable chemical composition of their precursors, led to the preparation of various MOF-derived porous carbons with controlled structures and compositions bearing some of the unique structural properties of the parent networks. In this regard, an important class of MOFs constructed with porphyrin ligands were described, playing significant roles in the metal distribution within the porous carbon material. The most striking early achievements using porphyrin-based MOF porous carbons are here summarized, including preparation methods and their transformation into materials for electrochemical reactions.

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 Application of CoMn/CoFe layered double hydroxide based on metal-organic frameworks template to activate peroxymonosulfate for 2, 4-dichlorophenol degradation

2021 ◽  
Author(s):  
Chenyu Liu ◽  
Haitong Wei ◽  
Yanhui Gao ◽  
Ning Wang ◽  
Xiaoying Yuan ◽  
...  
Keyword(s):  
Specific Surface ◽  
Pore Structure ◽  
Surface Area ◽  
Specific Surface Area ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
High Specific Surface Area ◽  
State Transformation ◽  
Alkaline Conditions ◽  
Metal Organic

Abstract Metal-Organic Frameworks (MOFs) have unique properties and stable structure, which have been widely used as templates/precursors to prepare well-developed pore structure and high specific surface area materials. In this article, an innovative and facile method of crystal reorganization was designed by using MOFs as sacrificial templates to prepare LDH nano-layer sheet structure through a pseudomorphic conversion process under alkaline conditions. The obtained CoMn-LDH and CoFe-LDH catalysts broke the ligand of MOFs and reorganized the structure on the basis of retaining a high specific surface area and a large number of pores, which have higher specific surface area and well-developed pore structure than LDH catalysts prepared by traditional methods, and thus provide more active sites to activate PMS. Due to the unique framework structure of MOFs, the MOF derived CoMn-LDH and CoFe-LDH catalysts could provide more active sites to activate PMS, and achieve a 2, 4-dichlorophenol (2, 4-DCP) degradation of 99.3% and 99.2% within 20 min, respectively. Besides, the two LDH catalysts displayed excellent degradation performance for bisphenol A (BPA), ciprofloxacin (CIP) and 2, 4-dichlorophenoxyacetic acid (2, 4-D). XPS indicated that the valence state transformation of metal elements participated in PMS activation. EPR manifested sulfate radical () and singlet oxygen (1O2) were the main species for degrading pollutants. In addition, after the three-cycle experiment, the CoMn-LDH and CoFe-LDH catalysts also showed long-term stability with a slight activity decrease in the third cycle. The phytotoxicity assessment determined by the germination of mung beans proved that PMS activation by MOFs-derived LDH catalyst can basically eliminate the phytotoxicity of 2, 4-D solution. This research not only developed high-activity LDH catalysts for PMS activation, but also expanded the environmental applications of MOFs derivants.

Monte Carlo Simulations to Examine the Role of Pore Structure on Ambient Air Separation in Metal–Organic Frameworks

2018 ◽  
Vol 57 (28) ◽  
pp. 9240-9253 ◽  
Author(s):  
Sean M. McIntyre ◽  
Bohan Shan ◽  
Ruitong Wang ◽  
Congwei Zhong ◽  
Jichang Liu ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Pore Structure ◽  
Metal Organic Frameworks ◽  
Ambient Air ◽  
Air Separation ◽  
Metal Organic

Mesoporous Metal-Organic Frameworks with Size-, Shape-, and Space-Distribution-Controlled Pore Structure

2015 ◽  
Vol 27 (18) ◽  
pp. 2923-2929 ◽  
Author(s):  
Weina Zhang ◽  
Yayuan Liu ◽  
Guang Lu ◽  
Yong Wang ◽  
Shaozhou Li ◽  
...  
Keyword(s):  
Pore Structure ◽  
Metal Organic Frameworks ◽  
Space Distribution ◽  
Metal Organic ◽  
Mesoporous Metal

Influence of crystal topology and interior surface functionality of metal-organic frameworks on PFOA sorption performance

2016 ◽  
Vol 236 ◽  
pp. 202-210 ◽  
Author(s):  
Meng-Jia Chen ◽  
An-Chih Yang ◽  
Nan-Hui Wang ◽  
Hao-Che Chiu ◽  
Yung-Lin Li ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Interior Surface ◽  
Surface Functionality ◽  
Metal Organic

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....

Separation of alkane and alkene mixtures by metal–organic frameworks

2021 ◽  
Vol 9 (37) ◽  
pp. 20874-20896
Author(s):  
Hao Wang ◽  
Dawei Luo ◽  
Ever Velasco ◽  
Liang Yu ◽  
Jing Li
Keyword(s):  
Metal Organic Frameworks ◽  
Great Promise ◽  
High Porosity ◽  
Surface Functionality ◽  
Metal Organic

Metal–organic frameworks hold great promise for the separation of alkane and alkene mixtures in light of their diverse structures, high porosity, and tunable pore dimensions and surface functionality.

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