Belgian scientists have transformed the polluted air in hydrogen fuel

Humanity must do two things to help the environment: reduce the release of harmful gases and produce more energy from renewable sources. Many research projects try to solve these problems separately, and very few together. Belgian scientists from the universities of Antwerp and Leuven have developed a device that belongs in the second category – it purifies the air and generates fuel at the same time.

How does it work?

Using a process called “heterogeneous photocatalysis”. He uses light and a special catalyst (usually a semiconductor) to start the chemical reaction. Previously, heterogeneous photocatalysis were used for the extraction of hydrogen from water and neutralize gases that pollute the environment. But together these opportunities are very rare. The research team was able to run both processes simultaneously using the photoelectrochemical cell, which uses solar panels to produce hydrogen through electrolysis. The device has two parts, separated by a membrane to isolate processes from each other. The air is cleaned from one side of the photoanode, and hydrogen formed by the cathode, installed in a solid electrolytic membrane.

Although it sounds like the invention of a miracle machine, the project team emphasizes that the device is only a practical proof of the idea with a huge potential for improvement. Now it takes only a few square centimeters, which is not enough for proper air filtration and extraction of hydrogen for energy supply of mankind.

Source: Popular Mechanics