zif and btc

A. How to distinguish ZIF and MOF

MOF is a metal organic framework structure and ZIF is a zeolite-like imidazolate framework material. Simply speaking, ZIF is one of the many classifications of MOF.

B. What happens when Zif-8 is mixed with zif-67 and why is it so?

Zolitic imidazolate framework materials ZIF-8 and ZIF-67 were synthesized by room temperature method. The synthesized samples were characterized by SEM and BET testing methods. The adsorption isotherms of n-hexane and 2-methylpentane on ZIF-8 and ZIF-67 adsorbents were measured, and it was found that the static saturated adsorption capacity of each component on ZIF-8 was higher than that of ZIF -67; The continuous outflow breakthrough curve of n-hexane/dimethylpentane mixture on ZIF-8 was determined by fixed-bed dynamic adsorption breakthrough experiment. The results show that ZIF-8 has obvious adsorption selectivity to n-hexane. , when the total pressure was 1.0 MPa and the feed concentration ratio was 1∶1, the dynamic adsorption capacity of ZIF-8 for n-hexane was 0.40 g·g~(-1), and the separation coefficient of n-hexane/dimethylpentane was 5.71

C. zif8 yield is related to what

zif8 yield is related to preparation materials.
The methanol solution of 2-methylimidazole (2-mi) was slowly deposited into the ammonia solution of zinc hydroxide, and after a few days, colorless polyhedral crystals were gradually obtained, named zif-8. Although the above method can obtain zif-8 material, the preparation efficiency is relatively low.
Therefore, in order to synthesize zif-8 materials more efficiently, people optimize the preparation conditions of zif-8 materials by changing the types of solvents, adding template agents or surfactants, and controlling the reaction temperature. At present, the commonly used solvents for the preparation of zif-8 materials are water, ammonia, methanol, n,n-dimethylformamide (dmf), etc., and the commonly used templates or surfactants are ethanolamine, diethylamine, l-group Amino acid, polyethylene glycol, sodium lauryl sulfate, polyvinylpyrrolidone, cetyltrimethylammonium bromide, etc.

D. What is the difference between zif-67 and zif-8

The difference between the two is: the metal node of zif-67 is Co ion, while the metal node of zif-8 is Zn ions.
ZIF is a zeolite
imidazolate framework material, which is a porous crystalline material. In it, organic imidazolates are cross-linked to transition metals to form a tetrahedral framework. Many different ZIF structures can be formed by simply tuning the crosslink-crosslink interactions.
ZIF
is a novel
porous material
combining the high stability found in inorganic zeolites with the high
porosity of MOFs
br /> and organic features. These features can be applied to efficient catalysis and separation processes.
(4) zif and btc extended reading:
Separation of ZIF: Zn
in ZIF-21
can be replaced by Co
. The angle of T-imidazolate-T
in ZIF
is 145°, which is close to the Si-O-Si
bond angle
in zeolite. The density of ZIF-20
is much lower than that of A
zeolite. ZIF
is a new type of porous material.
combines the high stability found in inorganic zeolites with the high porosity and organic functionality of MOFs
. These features can be applied to efficient catalysis and separation processes.
Reference source: Sogou Network—ZIF

E. How to download these links?

You can use Express, Thunder, etc. (use the following address)

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The third one: http://cachefile32.rayfile.com /en-us/download//%E8%97%8D%E8%89%B2%E8%9D%B4%E8%9D%B6-%5Bcoat%5D%20Number%20Speed%20Swimmer%20Collectors%203of3.rmvb

Can zn coordinate with n on F. zif-8?

See the number of coordinating atoms forming bonds with the former. For example, 3 Cls in [CoCl3(NH3)3] and 3 Ns in 3 -NH3 are all bonded to Co, and there are six coordination atoms in total, so the coordination number is 6.

G. The difference between zif-67 and zif-8

zif-67 and zif-8 mainly have three differences in metal nodes, materials and structural properties:

1, The metal nodes are different:

Zif-67 metal nodes are cobalt ions, while Zif-8 metal nodes are zinc ions.

2. Different materials:

Zif-67 is the framework material of imidazole molecular sieve. It is a porous crystalline material.

Zif-8 is a novel porous material that combines the high stability of inorganic molecular sieves with the high porosity and organic functionality of MOFS.

3, different structural properties

Zif-67, such as organic imidazolate, is cross-linked with transition metals to form a tetrahedral framework. By simply tuning the crosslink-crosslink interactions, many different Zif structures can be formed.

The properties of Zif-8 are generally used in high-efficiency catalytic separation processes.

H. I would like to ask, are there any laptop hard drives with 1.8 inch ce interface for sale on the market now? Is the ce interface and zif interface the same?��Not much more. The interface is the same.

I. The difference between ZIF and MOF, is ZIF a kind of MOF?

ZIF is a subset of MOF, and the concept of mof is broader.

The difference between ZIF and MOF is as follows:

1. Different structural materials

ZIF: refers to zeolite imidazolate framework material. Organic imidazolates are cross-linked to transition metals to form a tetrahedral framework.

MOF: Metal-Organic Framework Materials. It has a three-dimensional pore structure, generally using metal ions as connection points, and organic ligands support to form a spatial 3D extension.

2, different properties

ZIF: high stability, high porosity and organic functions, good thermal and chemical stability.

MOF: high porosity, low density, large specific surface area, regular pore channels, tunable pore size, and topological diversity and tailorability.

3. Different application fields

ZIF: efficient catalysis and separation process.

MOFs have a wide range of applications in gas storage and separation, catalysis, sensing, and drug delivery.

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