Reducing the earth’s carbon dioxide (CO2) levels is one of the main ways to deal with climate change. But instead of trapping and storing CO2, scientists are looking to use it as a base material for fuel production.
The conversion of CO2 to methane and methanol requires water as a rich source of hydrogen. Now researchers at the Tata Fundamental Research Institute in Mumbai Have shown The use of magnesium for the direct reaction of CO2 with water at room temperature and normal pressure causes the formation of methane, methanol and formic acid and eliminates the need for external energy sources.
Magnesium is the eighth most abundant element in the Earth’s crust and the fourth most abundant element on our planet after iron, oxygen and silicon. In the process of converting carbon dioxide to normal magnesium, we need base carbonate magnesium, CO2 and water. In the conversion process, magnesium is converted to magnesium hydroxide and carbonate, which may be reproducible.
Magnesium is one of the metals that emits the least amount of CO2 emissions. The researchers’ new findings show that 1 kg of magnesium, through a simple reaction with water and carbon dioxide, produces 2.43 liters of methane, 940 liters of hydrogen and 3.85 kg of basic magnesium carbonate, and small amounts of methanol and formic acid.
This new method allows scientists to produce 940 liters of hydrogen per kilogram of magnesium. This is about 420 times the amount of hydrogen obtained by the reaction of magnesium with empty water. More interestingly, this whole process takes place in just 15 minutes at room temperature and pressure. Magnesium powder, unlike other metal powders, is very stable, so this process can be used to convert CO2, help the earth’s climate and produce fuel.
On the other hand, 95% of Mars’ environment is made up of carbon dioxide, and recent reports have shown that the planet has enough magnesium. Therefore, researchers have tested this process at a lower temperature on Earth to investigate the possibility of using CO2-magnesium conversion on Mars. The result was that methane, methanol, formic acid, and hydrogen were reasonably obtained from the output of this reaction. The researchers’ recent breakthrough could be promising for a future in which magnesium will be used to convert Martian carbon dioxide into fuel and build a base on the planet.