Chinese scientists have developed a technology for producing methanol from carbon dioxide, which allows you to extract fuel from the atmosphere without any energy consumption. It is a passive system that only needs a water source and an open space to operate. The main secret is to use the daily temperature fluctuations on Earth, when the daytime heat gives way to the nighttime cold.
The achievement of Chinese chemists and physicists is based on the promising material perovskite, which, in combination with bismuth tungstate, collects heat very effectively from the environment. They made nanoplates that operate in a temperature range of 15 ° C to 70 ° C, which is very close to the real conditions of many deserts. The collected energy is not much, but it is enough to start the pyroelectric catalytic reduction of CO2 to methanol.
During the experiments, the result was achieved in the form of 5.5 × 10-five g / mol of methanol, however, not in one day, but according to the results of 20 cycles of temperature change. But it is still one of the most efficient and cost-effective methods for producing methanol, since it does not require any costs other than making plates, supplying water and collecting the finished product. The technology is environmentally friendly and useful, as it allows you to extract harmful gas from the atmosphere and turn it into fuel.