The sun is an inexhaustible source of energy, access to which, however, is limited due to natural reasons - the onset of night or cloudiness. A group of Swedish scientists from Chalmers University (Sweden) undertook to overcome this "injustice". They have developed a liquid energy carrier capable of not only storing and releasing solar energy, but also transporting it.
The technology, called MOST, differs from similar methods by the ability to "put" solar energy directly into chemical bonds without any additional processes or reactions.
The technology is based on the interaction of an organic solution of norbornadiene with light, resulting in the formation of a quadricyclan. Changing the temperature of the quadricyclane triggers a process that converts heat energy into liquid.
The proportion of converted sunlight into chemical bonds was 1.1%, which is 100 times more than the previous experimental setup created by scientists four years ago. She had this figure only 0, 009%. Also, in the new system, instead of the rare and expensive metal ruthenium, carbon elements are used, which are an order of magnitude cheaper.
“The method we have developed will allow us to store solar energy in chemical organics and release it in the form of heat when needed. - explains the head of the project Kasper Mot-Paulsen. "Combining chemical energy carriers with solar-heated water will convert more than 75% of the captured sunlight."