Using red & near-infrared regions of sunlight to liberate H2 from H2O

Hydrogen fuel from water!

This is an image of near-infrared-light-driven hydrogen evolution from water photo-driven by triruthenium photosensitizer. Credit: Kyushu University
Credit: Kyushu University


“Scientists have synthesized a compound that absorbs near-infrared light to produce hydrogen from water. The compound contains three ruthenium atoms connected by an organic molecule.

“The absorbed light stimulates electrons to ‘jump’ into orbitals that do not exist in other, similar compounds.

“This is the first successful use of infrared light to reduce water into hydrogen, which can be used for energy conversion and storage, and other industrial purposes in a future sustainable energy society.”

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Story Source:

Materials provided by Kyushu University, I2CNER. Note: Content may be edited for style and length.

Journal Reference:

Yutaro Tsuji, Keiya Yamamoto, Kosei Yamauchi, Ken Sakai. Near-Infrared Light-Driven Hydrogen Evolution from Water Using a Polypyridyl Triruthenium Photosensitizer. Angewandte Chemie International Edition, 2017; DOI: 10.1002/anie.201708996

Cite This Page:

Kyushu University, I2CNER. “Hydrogen fuel from water by harnessing red and near-infrared regions of sunlight.” ScienceDaily. ScienceDaily, 17 November 2017. <>.