Conductive Metal and Covalent Organic Frameworks for Electrocatalysis: Design Principles, Recent Progress and Perspective

Nanoscale ◽  
2021 ◽  
Author(s):  
Jinyan Wang ◽  
Hongyin Hu ◽  
Shuanglong Lu ◽  
Jundie Hu ◽  
Han Zhu ◽  
...  
Keyword(s):  
Active Sites ◽  
Recent Progress ◽  
Structural Diversity ◽  
Design Principles ◽  
Covalent Organic Frameworks

Metal and covalent organic frameworks (MOFs/COFs) are emerging promising candidates in the field of catalysts due to their porous nature, chemically well-defined active sites and structural diversity. However, they are...

Pore surface engineering of covalent organic frameworks: structural diversity and applications

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21679-21708 ◽  
Author(s):  
Harsh Vardhan ◽  
Ayman Nafady ◽  
Abdullah M. Al-Enizi ◽  
Shengqian Ma
Keyword(s):  
Recent Progress ◽  
Surface Engineering ◽  
Structural Diversity ◽  
Review Article ◽  
Pore Surface ◽  
Covalent Organic Frameworks

This review article summarizes the recent progress in the pore surface engineering of covalent organic frameworks (COFs) for various applications.

scholarly journals In VivoImpact of Met221 Substitution in GOB Metallo-β-Lactamase

2012 ◽  
Vol 56 (4) ◽  
pp. 1769-1773 ◽  
Author(s):  
Jorgelina Morán-Barrio ◽  
María-Natalia Lisa ◽  
Alejandro J. Vila
Keyword(s):  
Antibiotic Resistance ◽  
Protein Stability ◽  
Metal Binding ◽  
Active Sites ◽  
Bacterial Resistance ◽  
Structural Diversity ◽  
Hydrophobic Core

ABSTRACTMetallo-β-lactamases (MβLs) represent one of the main mechanisms of bacterial resistance against β-lactam antibiotics. The elucidation of their mechanism has been limited mostly by the structural diversity among their active sites. All MβLs structurally characterized so far present a Cys or a Ser residue at position 221, which is critical for catalysis. GOB lactamases stand as an exception within this picture, possessing a Met residue in this location. We studied different mutants in this position, and we show that Met221 is essential for protein stability, most likely due to its involvement in a hydrophobic core. In contrast to other known MβLs, residue 221 is not involved in metal binding or in catalysis in GOB enzymes, further highlighting the structural diversity of MβLs. We also demonstrate the usefulness of protein periplasmic profiles to assess the contribution of protein stability to antibiotic resistance.

Structural Diversity within the Mononuclear and Binuclear Active Sites ofN-Acetyl-d-glucosamine-6-phosphate Deacetylase†,‡

Biochemistry ◽  
2007 ◽  
Vol 46 (27) ◽  
pp. 7953-7962 ◽  
Author(s):  
Richard S. Hall ◽  
Shoshana Brown ◽  
Alexander A. Fedorov ◽  
Elena V. Fedorov ◽  
Chengfu Xu ◽  
...  
Keyword(s):  
Active Sites ◽  
Structural Diversity

Recent progress in the design principles, sensing mechanisms, and applications of small-molecule probes for nitroreductases

2020 ◽  
Vol 421 ◽  
pp. 213460 ◽  
Author(s):  
Ya-Lin Qi ◽  
Long Guo ◽  
Li-Li Chen ◽  
Hua Li ◽  
Yu-Shun Yang ◽  
...  
Keyword(s):  
Small Molecule ◽  
Recent Progress ◽  
Design Principles ◽  
Small Molecule Probes

Design, synthesis, and application of metal sulfides for Li–S batteries: progress and prospects

2020 ◽  
Vol 8 (35) ◽  
pp. 17848-17882 ◽  
Author(s):  
Bo Yan ◽  
Xifei Li ◽  
Wei Xiao ◽  
Junhua Hu ◽  
Lulu Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Recent Progress ◽  
Review Paper ◽  
Metal Sulfide ◽  
Design Principles ◽  
Metal Sulfides ◽  
Comprehensive Overview ◽  
Design Synthesis

This review paper presents a comprehensive overview of recent progress in the use of metal sulfide for high-performance Li–S batteries with a particular focus on the modified approaches, design principles, synthetic strategies, and representative applications.

Methane selective oxidation to methanol by metal-exchanged zeolites: a review of active sites and their reactivity

2019 ◽  
Vol 9 (8) ◽  
pp. 1744-1768 ◽  
Author(s):  
Muhammad Haris Mahyuddin ◽  
Yoshihito Shiota ◽  
Kazunari Yoshizawa
Keyword(s):  
Selective Oxidation ◽  
Active Sites ◽  
Recent Progress ◽  
Future Research ◽  
Research Challenges ◽  
Challenges And Opportunities

A review of the recent progress in revealing the structures, formation, and reactivity of the active sites in Fe-, Co-, Ni- and Cu-exchanged zeolites as well as outlooks on future research challenges and opportunities is presented.

scholarly journals The terpyridine isomer game: from chelate to coordination network building block

2020 ◽  
Vol 56 (74) ◽  
pp. 10786-10794
Author(s):  
Catherine E. Housecroft ◽  
Edwin C. Constable
Keyword(s):  
Building Block ◽  
Recent Progress ◽  
Design Principles ◽  
Coordination Networks ◽  
Coordination Network ◽  
Network Building

Recent progress towards a better understanding of the design principles associated with the use of 4,2′:6′,4′′-tpy, 3,2′:6′,3′′-tpy, bis(4,2′:6′,4′′-tpy) and bis(3,2′:6′,3′′-tpy) linkers and nodes in coordination networks is presented.

scholarly journals Electrochemical Sensors Based on Covalent Organic Frameworks: A Critical Review

2020 ◽  
Vol 8 ◽  
Author(s):  
Sidi Chen ◽  
Baiqing Yuan ◽  
Gang Liu ◽  
Daojun Zhang
Keyword(s):  
Electrochemical Sensors ◽  
Structural Diversity ◽  
Electrochemical Sensing ◽  
Covalent Organic Frameworks ◽  
Light Elements ◽  
Covalent Bonds ◽  
Crystalline Polymers ◽  
Sensor Field ◽  
Metal Organic ◽  
Key Issues

The metal-free cousins of metal-organic frameworks, covalent organic frameworks (COFs), are a class of pre-designable crystalline polymers composed of light elements and connected by strong covalent bonds. COFs are being given more and more attention in the electrochemical sensor field due to their fascinating properties, such as highly tunable porosity, intrinsic chemical and thermal stability, structural diversity, large specific surface area, and unique adsorption characteristics. However, there are still some key issues regarding COFs that need to be urgently resolved before they can be effectively applied in electrochemical sensing. In this review, we summarized recent achievements in developing novel electrochemical sensors based on COFs, and discussed the key fundamental and challenging issues that need to be addressed, including the mechanisms underlying charge transport, methods to improve electrical conductivity, immobilization methods on different substrates, synthesis strategies for nanoscale COFs, and the application of COFs in different fields. Finally, the challenges and outlooks in this promising field are tentatively proposed.

Recent Progress in Asymmetric Catalysis with Chiral Metal-Organic Frameworks

2020 ◽  
Vol 984 ◽  
pp. 195-204
Author(s):  
Meng Xi Zhang
Keyword(s):  
Asymmetric Catalysis ◽  
Active Sites ◽  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Future Research ◽  
Asymmetric Catalysts ◽  
The Future ◽  
Metal Organic ◽  
Specific Reactions

Chiral metal-organic frameworks (CMOFs) have shown great promises in the applications of asymmetric catalysis with highly enantioselective. Herein, we briefly overview recent processes of MOF-based asymmetric catalysts based on a classification of reaction types. And we mainly focus on the structures and compositions of the active sites in these catalysts and their performances in specific reactions. In addition, some of their important unique features are critically emphasized alongside. Challenges of the future research are discussed also at the end of this review.

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