The pursuit of a greener future continues to drive advancements in green fuel technology, even involving water. From electric cars to fuels never before imagined, the automotive industry has greatly benefited from these advancements. Yet the world is still not convinced that it has reached the limit of possibilities; some researchers have dedicated their careers to finding new solutions. Recently, Japanese scientists unveiled a major discovery that could further change the way renewable fuels are produced. That’s all we know about this invention.
With this invention, Japan has done something never seen before
Water, wind, and sunlight are natural resources that are widely used to produce energy. From solar panels to wind turbines, there are many possibilities for using these resources. When considering the evolution of renewable forms of energy, we cannot forget to mention the applications of these resources by the automotive industry.
As society seeks sustainable ways of generating energy, it is common for new fuels to emerge on the market. But when an alternative form of energy is applied to produce a non-polluting, renewable fuel, we see something completely new. And it will certainly be impressive.
Sunlight and water are manipulated to produce a new resource
A group of Japanese scientists has developed new equipment capable of creating hydrogen using sunlight and water. Bearing in mind that most of the green hydrogen used is extracted from natural gas reserves, this innovative mechanism could be crucial for hydrogen to become a viable alternative fuel. The study, published in the journal Frontiers in Science by Prof. Kazunari Domen of Shinshu University, could serve as a starting point for this ideal to become a reality.
“Sunlight-driven water splitting using photocatalysts is an ideal technology for solar-to-chemical energy conversion and storage, and recent developments in photocatalytic materials and systems raise hopes for its realization”, states. In total, the study took over three years, during which the scientists dedicated themselves to studying the variables involved in the process of transforming water into hydrogen.
It sounds like a simple process, but it’s not
The process behind the production of hydrogen using sunlight and water seems relatively simple, but it is far more complex. The basic principle would be to split the water molecules and separate them into oxygen and hydrogen. However, for this action to be successful, a catalyst must be used.
In the case of the published study, the catalyst chosen is called a photocatalyst. When exposed to light, it facilitates chemical reactions that help break down water molecules into their two constituent parts.
To make the system work, the research group chose an up-to-date method known as a “two-step excitation system,” which is recognized for its efficiency. Through it, one of the photocatalysts generates hydrogen from water, while the other produces oxygen.
Although solar energy can only be used during the day, the study also covers this challenge, since it uses solar energy to generate “chemical energy” that can be stored and used as fuel. The method was proven by producing a concept reactor, which worked satisfactorily for three years.
A future with sustainable resources helping fuel production
According to the researchers involved in the study, it is also possible to think about the mechanism as something that works under simulated sunlight to maintain production even during periods of bad weather and at night. Although this is possible, efficiency is still low, which means that the need for further advances remains. Just as Japan seeks to improve these technologies, other countries are also committed to advancing in the field of sustainable energy. Recently, this country showed that photovoltaic cell technology can be used in a variety of applications.