Enhanced non-enzymatic glucose sensing based on porous ZIF-67 hollow nanoprisms

2021 ◽  
Author(s):  
Qiwen Chen ◽  
Dandan Chu ◽  
Li Yan ◽  
Haichen Lai ◽  
Xue-Qiang Chu ◽  
...  
Keyword(s):  
Porous Materials ◽  
Surface Area ◽  
Active Sites ◽  
Catalytic Properties ◽  
Metal Organic Frameworks ◽  
Glucose Sensing ◽  
Large Surface Area ◽  
Metal Organic

Metal−organic frameworks (MOFs) as porous materials have a significant improvement of catalytic properties because of their rich active sites and large surface area. Herein, we develop a facile and efficient...

The photo-, electro- and photoelectro-catalytic properties and application prospects of porous coordinate polymers

2018 ◽  
Vol 6 (15) ◽  
pp. 6130-6154 ◽  
Author(s):  
Haolin Zhu ◽  
Dingxin Liu ◽  
Dianting Zou ◽  
Jianyong Zhang
Keyword(s):  
Catalytic Activity ◽  
Specific Surface ◽  
Surface Area ◽  
Gas Adsorption ◽  
Catalytic Properties ◽  
Metal Organic Frameworks ◽  
High Catalytic Activity ◽  
Large Specific Surface Area ◽  
Metal Organic ◽  
Application Prospects

Since the discovery of metal–organic frameworks (MOFs), covalent–organic frameworks (COFs) and zeolite–imidazole frameworks (ZIFs), many of their outstanding properties have been explored such as their large specific surface area, significant gas adsorption, and high catalytic activity.

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.

scholarly journals Metal–Organic Frameworks Toward Electrocatalytic Applications

2019 ◽  
Vol 9 (12) ◽  
pp. 2427 ◽  
Author(s):  
Jun-Hong Li ◽  
Yi-Sen Wang ◽  
Yu-Chuan Chen ◽  
Chung-Wei Kung
Keyword(s):  
Thin Films ◽  
Porous Materials ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
High Density ◽  
Dimensional Array ◽  
Metal Organic ◽  
Porous Supports ◽  
Catalytic Applications

Metal–organic frameworks (MOFs) are a class of porous materials constructed from metal-rich inorganic nodes and organic linkers. Because of their regular porosity in microporous or mesoporous scale and periodic intra-framework functionality, three-dimensional array of high-density and well-separated active sites can be built in various MOFs; such characteristics render MOFs attractive porous supports for a range of catalytic applications. Furthermore, the electrochemically addressable thin films of such MOF materials are reasonably considered as attractive candidates for electrocatalysis and relevant applications. Although it still constitutes an emerging subfield, the use of MOFs and relevant materials for electrocatalytic applications has attracted much attention in recent years. In this review, we aim to focus on the limitations and commonly seen issues for utilizing MOFs in electrocatalysis and the strategies to overcome these challenges. The research efforts on utilizing MOFs in a range of electrocatalytic applications are also highlighted.

Fluoride sensing performance of fluorescent NH2-MIL-53(Al): 2D Nanosheets vs. 3D Bulk

2021 ◽  
Author(s):  
Zixuan Li ◽  
Deyi Zhan ◽  
Abdul Saeed ◽  
Nanjing Zhao ◽  
Junfeng Wang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Metal Organic ◽  
2D Nanosheets ◽  
Fluoride Sensing ◽  
Sensing Performance

Due to the ultra-thin morphology, larger specific surface area and more exposed active sites, two-dimensional (2D) metal-organic frameworks (MOFs) nanosheets can break the limitations of three-dimensional (3D) MOFs in sensitivity,...

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.

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.

Hierarchical Core-Shell 2D MOF Nanosheet Hybrid Arrays for High-Performance Hybrid Supercapacitors

2021 ◽  
Author(s):  
Qiong Bi ◽  
Qingxiang Ma ◽  
Kai Tao ◽  
Lei Han
Keyword(s):  
Surface Area ◽  
High Performance ◽  
Electrode Materials ◽  
Metal Organic Frameworks ◽  
Large Surface Area ◽  
Core Shell ◽  
Two Dimensional ◽  
Hybrid Supercapacitors ◽  
Metal Organic

Two-dimensional (2D) metal-organic frameworks (MOFs) with large surface area, ordered pores and ultrathin thickness have recently emerged as ideal electrode materials for supercapacitors (SCs). However, their straightforward applications are restricted...

scholarly journals Homochiral metal–organic frameworks as heterogeneous catalysts

2018 ◽  
Vol 5 (7) ◽  
pp. 1512-1523 ◽  
Author(s):  
Andreea Gheorghe ◽  
Martijn A. Tepaske ◽  
Stefania Tanase
Keyword(s):  
Surface Area ◽  
Asymmetric Catalysis ◽  
Active Sites ◽  
Heterogeneous Catalysts ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Metal Organic

Homochiral metal–organic frameworks (HMOFs) are attractive materials for asymmetric catalysis because they possess high surface area and uniform active sites.

Are you using the right probe molecules for assessing the textural properties of metal–organic frameworks?

2022 ◽  
Author(s):  
Timur Islamoglu ◽  
Karam B. Idrees ◽  
Florencia A. Son ◽  
Zhijie Chen ◽  
Seung-Joon Lee ◽  
...  
Keyword(s):  
Pore Size Distribution ◽  
Porous Materials ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Pore Volume ◽  
Metal Organic Frameworks ◽  
Textural Properties ◽  
Metal Organic ◽  
The Right

Textural properties—such as the surface area, pore size distribution, and pore volume—are at the forefront of characterization for porous materials.

Metal-organic-framework derived hollow manganese nickel selenide spheres confined with nanosheets on nickel foam for hybrid supercapacitors

2021 ◽  
Author(s):  
Bahareh ameri ◽  
Akbar Mohammadi Zardkhoshoui ◽  
Saied Saeed Hosseiny Davarani
Keyword(s):  
Active Sites ◽  
Nickel Foam ◽  
Metal Organic Framework ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Supercapacitive Performance ◽  
Hybrid Supercapacitors ◽  
Porous Networks ◽  
Metal Organic

Metal-organic frameworks (MOFs) derived nanoarchitectures have special features, such as high surface area (SA), abundant active sites, exclusive porous networks, and remarkable supercapacitive performance when compared to traditional nanoarchitectures. Herein,...

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