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Hydrogen produced in minutes: Microwave technology delivers clean energy faster

Scientists demonstrated that microwave energy could lower the reduction temperature of Gd-doped ceria (CeO2)—a benchmark material for hydrogen production.

por World Energy Trade
Hydrogen produced in minutes: Microwave technology delivers clean energy faster

Scientists have developed a groundbreaking technology that addresses key limitations in clean hydrogen production using microwaves. An interdisciplinary team at Pohang University of Science & Technology (POSTECH) successfully elucidated the underlying mechanism of this innovative process. Their findings mark a transformative step in the pursuit of sustainable energy.

Hydrogen produced in minutes: Microwave technology delivers clean energy faster

Scientists underlined that existing hydrogen production technologies face significant barriers. Conventional thermochemical methods, which rely on the oxidation-reduction of metal oxides, require extremely high temperatures of up to 1,500°C (2,732°F). These methods are not only energy-intensive and costly but also challenging to scale, limiting their practical application, according to researchers.

 

Microwaves drive chemical reactions efficiently

To address these challenges, scientists opted for “microwaves” energy, the same source used in household microwave ovens. While microwaves are commonly associated with heating food, they can also drive chemical reactions efficiently.

Scientists demonstrated that microwave energy could lower the reduction temperature of Gd-doped ceria (CeO2)—a benchmark material for hydrogen production—to below 600℃ (1,112 °F), cutting the temperature requirement by over 60 percent. Remarkably, microwave energy was found to replace 75 percent of the thermal energy needed for the reaction, a breakthrough for sustainable hydrogen production, according to a press release.

Research can revolutionize commercial viability of hydrogen production

“This research has the potential to revolutionize the commercial viability of thermochemical hydrogen production technologies. It will also pave the way for the development of new materials optimized for microwave-driven chemical processes,” said Professor Hyungyu Jin from POSTECH.

“Introducing a new mechanism powered by microwaves and overcoming the limitations of existing processes are major achievements, made possible through the close interdisciplinary collaboration of our research team.

For more about this news: Interesting Engieering

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