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In the UK, hydrogen fuel technology plays a key role in the renewable energy blueprint, and the UK hopes to increase annual hydrogen production from 27TWh to 860TWh by 2050, but the country wants to use environmentally friendly hydrogen production technology to achieve the goal, and solar hydrogen production technology currently has high cost and low efficiency and other challenges
.
To solve this problem, Jin Xuan, assistant professor of mechanical engineering at Heriot-Watt University in Scotland, worked with Yale University, City University of Hong Kong and East China University of Science and Technology to improve solar hydrogen production technology, making hydrogen gradually become a part
of renewable energy.
Photoelectrochemical electrolysis of water technology is one of the ways of solar hydrogen production, through solar energy and catalyst to split water into hydrogen and oxygen, the previous PEC electrolysis of water technology needs to consume 1.
23 electron volts (eV), and only a certain UV band can promote its reaction, resulting in a wide range of spectrum wasted
.
The team developed a pH differential design that reduces the energy requirement to 0.
35eV, and by changing the pH of each electrode individually, the thermodynamics of the electrolyzed water process are completely different, so that PEC electrolyzed water technology can operate
cheaper and more spectra.
Professor Xuan said that the cost of solar hydrogen production technology is the biggest challenge in the UK and globally, which is about twice the cost of wind and bioenergy, and the new system will be made from cheaper and more readily available materials, meaning the technology can easily be commercialized and meet the growing demand for hydrogen fuel, and the team is already actually using the technology in
fuel cells.
In the UK, hydrogen fuel technology plays a key role in the renewable energy blueprint, and the UK hopes to increase annual hydrogen production from 27TWh to 860TWh by 2050, but the country wants to use environmentally friendly hydrogen production technology to achieve the goal, and solar hydrogen production technology currently has high cost and low efficiency and other challenges
.
To solve this problem, Jin Xuan, assistant professor of mechanical engineering at Heriot-Watt University in Scotland, worked with Yale University, City University of Hong Kong and East China University of Science and Technology to improve solar hydrogen production technology, making hydrogen gradually become a part
of renewable energy.
Photoelectrochemical electrolysis of water technology is one of the ways of solar hydrogen production, through solar energy and catalyst to split water into hydrogen and oxygen, the previous PEC electrolysis of water technology needs to consume 1.
23 electron volts (eV), and only a certain UV band can promote its reaction, resulting in a wide range of spectrum wasted
.
The team developed a pH differential design that reduces the energy requirement to 0.
35eV, and by changing the pH of each electrode individually, the thermodynamics of the electrolyzed water process are completely different, so that PEC electrolyzed water technology can operate
cheaper and more spectra.
Professor Xuan said that the cost of solar hydrogen production technology is the biggest challenge in the UK and globally, which is about twice the cost of wind and bioenergy, and the new system will be made from cheaper and more readily available materials, meaning the technology can easily be commercialized and meet the growing demand for hydrogen fuel, and the team is already actually using the technology in
fuel cells.
