What is the Difference Between MOF and COF?
🆚 Go to Comparative Table 🆚The main difference between Metal Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs) lies in the nodes that form their structures. MOFs contain metal atoms or clusters as nodes, while COFs contain non-metal nodes.
MOFs are porous materials with a periodic network structure, formed by linking metal clusters or nodes with organic molecules. They have been extensively studied and used in various fields, such as gas storage, molecular separation, catalysis, and sustained drug release. MOFs can exist in 1D, 2D, or 3D structures.
COFs, on the other hand, are formed by linking organic units with covalent bonds to create a periodically arranged framework. They can have different pore diameters and can change the materials passing through them. COFs can be divided into two-dimensional and three-dimensional structures.
In summary, the key differences between MOFs and COFs are:
- Nodes: MOFs have metal nodes, while COFs have non-metal nodes.
- Structure: MOFs can have 1D, 2D, or 3D structures, while COFs can have 2D and 3D structures.
Despite the differences, both MOFs and COFs have high surface areas, permanent porosity, and can form extended structures with extended pores. They also share some overlapping application areas, such as gas storage and separation, catalysis, and adsorption. However, MOFs have been more widely studied and have a broader range of applications due to their longer history and larger number of structures.
Comparative Table: MOF vs COF
Here is a table comparing the differences between Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs):
Property | MOFs | COFs |
---|---|---|
Definition | MOFs are materials formed of metal clusters or nodes, linked by organic molecules. | COFs are materials formed of non-metal nodes, linked by covalent bonds. |
Nodal Components | Contain metal atoms or clusters as nodes. | Contain non-metal nodes. |
Structure | Can exist in 1D, 2D, or 3D structures. | Occur in 2D and 3D structures. |
Synthesis | MOFs are synthesized at a thermodynamical regime where bonds are simultaneously formed, permitting the growth of nice crystals. | COFs are synthesized through covalent bonds, sometimes in a concerted way, which can lead to lower crystallinity. |
Applications | MOFs are used in various applications, such as gas storage, separation, and catalysis. | COFs are still in the early stages of research, with potential applications in energy storage, gas separation, and sensing. |
Number of Structures | There are a large number of MOF structures reported, with around 10,636 structures available for free academic research. | COF structures are much less common, with less than 600 structures reported so far. |
In summary, MOFs are materials with metal nodes, while COFs are materials with non-metal nodes. MOFs can have 1D, 2D, or 3D structures, whereas COFs occur in 2D and 3D structures. MOFs are used in various applications, while COFs are still in the early stages of research and have potential applications in energy storage, gas separation, and sensing.
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