Electrospining Machine: Application of Electrostatic Spinning Technology in Catalysts

Background

A catalyst is a substance that accelerates the rate of a chemical reaction without being consumed by the reaction. A catalyst facilitates a chemical reaction by reducing the activation energy of the reaction. In the presence of a catalyst, reactants can be converted to products more easily, thus increasing the rate of the reaction. Catalysts can participate in a variety of chemical reactions, including oxidation, reduction, and acid-base neutralisation. In industrial production and laboratory research, catalysts are widely used to improve reaction efficiency, reduce energy consumption and minimise the generation of by-products.

What are the requirements for materials?

1.Chemical stability: 

The material needs to have good chemical stability, can be in a specific chemical environment to maintain its performance unchanged, not easy to corrosion or chemical reaction.

2.Processing performance: 

The material needs to have good processing performance, including plasticity, machinability, weldability, etc., in order to facilitate the preparation of a variety of shapes and structures of products.

3.Environmental adaptability:

The material needs to be able to adapt to the specific use of the environment, including high temperature, low temperature, corrosion resistance, wear resistance and other characteristics.

In general, the requirements for materials are multifaceted, and need to take into account the physical, chemical, processing and other properties of the material, as well as its adaptability and sustainability in specific areas of application.

What are the techniques for preparing Electrospun Nanofbers catalysts?

There are more methods to prepare Electrospun Nanofbers catalysts, such as gas phase deposition, sol-gel and electrostatic spinning. Among them, Electrospun Nanofbers prepared by electrospinning machine technology can effectively improve the utilisation of catalysts due to their high specific surface area and stable pore structure.

Electrospun Nanofbers in the field of catalysts

1.Electrospun Nanofbers Electrocatalysts for Water Decomposition

Due to the simplicity of preparation, unique one-dimensional properties, and easily controllable composition, morphology, and electronic structure, Electrospun Nanofbers have emerged as one of the most promising catalysts for electrocatalytic water cracking. In this paper, starting from the fundamentals of Electrospun Nanofbers (including beaded fibres, ribbon fibres, porous fibres, hollow fibres and bonded fibres, etc.) and the basic principles of hydrogen precipitation reaction, oxygen precipitation reaction, and overall water decomposition, we provide a comprehensive overview of the recent advances in the field of electrocatalytic water decomposition by giving detailed examples of different Electrospun Nanofbers materials. Recent Advances in Electrocatalytic Water Decomposition

2.Electrospun inorganic nanofibre electrocatalysts for energy batteries

Electrospun nanofibre catalysts have received great attention in fuel cells and metal-air batteries due to the advantages of large surface area, short charge transport paths and chemical stability of electrostatic spinning. In this paper, the recent progress of noble metal-free electrocatalysts prepared by electrospinning is reviewed. Next, other types of electrospun nanofibres with oxides, nitrides and carbides as electrocatalysts or their hybrid materials are also discussed. Finally, the prospects and possible research directions for the development of electrospun NFs-based oxygen electrocatalysts are envisaged.

Originallink: https://doi.org/10.1002/aenm.201902115,https://doi.org/10.1016/j.cej.2021.131133,