Due to the clear spaces in their structure, porous materials can absorb air and water pollutants, store and transform energy, act as catalysts and find applications in biomedicine. Scientists are working to improve methods for obtaining highly porous materials, including ball milling.

Porous materials have pores in their structure, that is, free spaces that provide a large specific surface. This is followed by good absorption or storage properties, for example, carbon dioxide, VOC vapors or clean energy carriers such as hydrogen and methane. Depending on the intended use From these materials, structures with small pores with pores of up to 2 nm and porous structures with pores ranging from 2 to 50 nm are obtained, ”- explains Dr. M. Barbara Szczęśniak from Military University of Technology.

In the Faculty of New Technologies and Chemistry of this university, work on the chemical-mechanical synthesis of highly porous materials is carried out under the supervision of a professor. Doctor. Hab. M. Jerzy Chuma. a. Doctor Hub. Mieczysław Jaroniec from Kent State University, USA.

Mechanical chemical methods can be used to obtain, among other things, carbon materials, organometallic meshes, metal oxides, and a variety of composite materials.

The ball milling method is used for grinding materials and synthesizing organic compounds, however, ball milling is often used in scientific laboratories to synthesize various nanomaterials. The researchers estimate that the kinetic energy generated during the ball’s grinding is sufficient to break down the existing energy and create new chemical bonds. Therefore, these methods are often suggested for the economical and ecological preparation of advantageous advanced materials, including highly porous materials.

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The year 1992 is considered one of the milestones in the history of porous materials, when the synthesis of siliceous materials with arranged intermediate pores was published.

PAP – Science in Poland

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