Specialists from the National Research Technological University “MISiS” (NUST “MISiS”), together with scientists from the Russian Academy of Sciences, have created a unique nanocomposite based on silicon. This development could allow “micro-power plants” to be used in printed circuit boards instead of conventional batteries.
Porous silicon materials are increasingly used in biomedicine and electronics due to the smooth distribution of pores of different sizes over all areas. In the latter version, they act as electrodes for micro-fuel cells, in the future – miniature hydrogen energy sources that can be placed directly on printed circuit boards. But porous silicon has a drawback – it gradually collapses upon contact with liquid. According to RIA Novosti, Russian scientists have solved this problem.
MISIS and the Russian Academy of Sciences have figured out how to improve the properties of porous silicon membranes using a graphene coating. Scientists argue that this method has no analogues in the world and in the future can be used to create electrodes for micro-fuel cells that provide power to electronics. It is likely that someday they will be able to replace the batteries.
The essence of the method of Russian scientists is that when treated with graphene, silicon’s surface electrical resistance decreases several times, and such structures become much more resistant to weakly alkaline solutions. In addition, the useful surface area of the material is increased and the durability of the catalysts is increased.

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