High-Rate Hydrogen Generation by Direct Sunlight Irradiation with a Triruthenium Complex

Tung-Kung Wu*, Yi Ting Chen, Chun Sheng Peng, Jia Hoa Lin, Jacek Gliniak, Hsin Fang Chan, Chin Hao Chang, Chuen Ru Li, Jen-Shiang K. Yu, Jui Nien Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Herein we report a biomimetic triruthenium catalyst that, when under direct sunlight irradiation, facilitates high-rate H2 production from formic acid (FA) dehydrogenation. The system consists of 2 μmol of catalyst and 6 μmol of tri-o-tolylphosphine in 1 mL of dimethylformamide (DMF) and 4 mL of FA/triethylamine (TEA; 5:2). With 0.4 mM catalyst loaded, a high turnover frequency of 1.15 × 106 h-1 was detected when under direct sunlight irradiation. In an experiment with 0.2 mM catalyst loaded, more than 140 L of H2 (280 L of H2 + CO2) was produced, and a turnover number of approximately 2.78 × 106 was obtained within 5 h without decline in H2 generation activity, making it suitable for high-rate H2 production.

Original languageEnglish
Pages (from-to)1967-1975
Number of pages9
JournalInorganic Chemistry
Issue number3
StatePublished - 4 Feb 2019

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