I D
× COMMENTARYEDITOR'S PAGECOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Nanofiltration Toray Industries, Inc. (Tokyo, Japan; www.toray.com) has created what…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment

A panel reactor for splitting water into hydrogen

By Tetsuo Satoh |

A group of Japanese researchers have developed a photocatalytic panel reactor with large area (1 m2) that splits water into H2 and O2 using only natural sunlight. The NEDO (www.nedo.go.jp)-supported project — which includes partners Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem; Tokyo), the University of Tokyo, Toto, Ltd. (Kanagawa), and Mitsubishi Chemical Corp. (Kanagawa) — aims to further the development of artificial photosynthesis for a future hydrogen-based economy. The newly developed reactor contains sheets that are fabricated by coating a substrate with a photocatalyst — particles of Al-doped SrTiO3. Water, with a depth of only 1 mm on the panel, is split into H2 and O2 upon exposure to natural sunlight, without the need for forced convection. With the 1-m2 prototype, the researchers have demonstrated a solar-to-H2 (STH) energy conversion of 0.4%, and an apparent quantum yield (AQY) of 56% at 365 nm. The evolution of gases could also be adjusted to a rate of 5.6 mL/cm2/h, to give an apparent STH efficiency of 10%. The use of ceramic membranes is proposed as a way to separate the two gases, and to prevent the buildup of explosive mixtures of H2 and O2. This shallow design,…
Related Content
Driving Toward a Hydrogen-based Economy
Technology developments are progressing towards large-scale production of ‘green’ hydrogen, along with improved methods for storage and transportation The world…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
How separation processes profit from Industrial Internet of Things (IIoT) solutions
Up to 80% increased production rates in plastic recycling
Higher throughput and purity in sodium bicarbonate production with up to 15% less energy consumption
Help feeding nations with chemical filtering technologies
Not at the forefront of Industry 4.0?

View More

Live chat by BoldChat