Because of its unusual properties (large specific surface area, large pore size, chemical inertness and temperature stability), porous Boron Nitride has become a popular new non-oxide materials.
A non-oxide, porous new material is called porous boron. You will find either open or interpenetrating pores within the interior. It features a dense pore structure and high specific surface. You can alter the size of pores to meet the needs of your specific application. You will enjoy a high rate of penetration, excellent insulation performance, and hydrophobic property.
Furthermore, porous Boron Nitride Materials have great potential to be used in gas adsorption, hydrogen storage, and separation. According to the International Union of Pure and Applied Chemistry’s (IUPAC) definition of porous material, they can be classified as follows: Micropores (pores smaller than 2 nm), Mesopores 2-50 nm and Macropores (pores larger than 50 nm).
Preparation
Use the space restriction function on the template to control the structure and make a templating procedure.
It is possible to order mesoporous materials using the soft template technique. This supramolecular aggregate is composed of an amphiphilic segment copolymerization. It is then used to create a template. A boron nutride precursor is assembled by non-covalent bond interactions and then pyrolyzed. 1a).
Hard templates
A hard template technique is used to make ordered mesoporous B nitride compounds. Utilizing a porous, solid template as a guide, a pre-made boron nutride can is introduced through impregnation into the pores. A pyrolysis reaction is performed to synthesize boron citride. 1b).
Element Replacement
The displacement reaction between carbon templates, boron, and nitrogen under high temperatures results in the creation of porous, porous, boron nitride, and porous, boron carbon. By controlling the reaction temp, you can control the carbon contents of the product. Lower carbon levels are possible if the reaction is heated up. This process allows for the preparation of boron Nitride porous material. Although it’s simple, there is little to no environmental impact and requires high temperature reactions as well high energy usage.
Microporous boron nitride material
The microporousboron nitride has a uniform and low pore volume. There are many other applications.
Mesoporous boron nitride material
This porous boron nutride material is known as Mesoporous. It features a small pore, large specific surfaces and good chemical properties. It can be used in both gas adsorption (catalysis) and other areas.
Ordered mesoporousboron-nitride product
Ordered mesoporous boran nitride is known for its periodic pore arrangement and large specific surface. Additionally, the distribution of pores is small and has broad application prospects. In order to synthesize ordered mesoporousboron nutride material, the majority of them use a template process. Mesoporous Silicon or mesoporous Carbon are generally used for a template. This method then uses a boron nutride precursor to impregnate the pores and then pyrolyzes them to make an ordered mesoporous material. The morphology is affected directly by the structure of pores in the template, and the amount of impregnation that the precursor gives to the template.
Disordered mesoporousboron nitride materials
The pores in the disordered-mesoporous mesoporousboron nitride are very disorderly organized and have wide distributions of sizes. Material can be prepared with either a template process, a high pressure react method or by direct pyrolytical boron nutride precursor.
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