According to foreign media, on August 24, researchers at the University of Cambridge in the United Kingdom have made important progress in the realization of artificial photosynthesis technology. Researchers have developed an independent device that can imitate the process by which plants convert sunlight into energy. The technology of "loose-leaf photos" converts sunlight, carbon dioxide and water into oxygen and formic acid without any additional components or electricity.
According to reports, this equipment can be laid on a large scale in the future to form an energy farm similar to a solar farm, using sunlight and water to produce clean energy. Using solar energy to convert carbon dioxide into fuel is an effective way to reduce carbon emissions and get rid of fossil fuels. However, it is also a big challenge not to produce excess by-products in the process of fuel production.
The main person in charge of the research, Dr. Qian Wang from the Department of Chemistry at the University of Cambridge, said: “It is very difficult to achieve highly selective artificial photosynthesis because it is necessary to convert as much sunlight into fuel as possible. Not leaving a lot of waste."
“The storage of gaseous fuels and the separation of by-products are also very complicated, so we hope to produce liquid fuels in a clean way, which is convenient for storage and transportation,†said Professor Erwin Reisner, another leader of the research project.
In 2019, the researchers of the Rainus team developed a solar reactor based on the "artificial leaf" design. It also uses sunlight, carbon dioxide and water to produce fuel. This new equipment is similar to the equipment made by the Rainus team. Similarities, but different working methods. First of all, the new device does not require any energy components and can work only by relying on the photocatalyst embedded in the sheet. In addition, this new technology is more advanced, and the clean fuel produced is easier to store, so the equipment has demonstrated the potential for large-scale production.
The test prototype size of the product is 20 square centimeters, and the researchers said it should be relatively simple to expand to a few square meters. In addition, formic acid can accumulate in the solution and be chemically converted into different types of fuel.
Although the application prospects of this technology are bright, there is still a long way to go before commercial deployment. First, the conversion efficiency and stability still need to be improved. Researchers are currently experimenting with different catalyst effects.
"We hope this technology will pave the way for simple and sustainable solar fuel production," Reisner said. (Reporter Zhang Yang)
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