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High-Pressure Organic Chemistry Lab
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The lab studies catalysts and reactions for storing and releasing hydrogen using formic acid.
AboutAbout the lab
Storing and releasing hydrogen with formic acid as the intermediary
The High-Pressure Organic Chemistry Lab works on catalysts for reactions that extract hydrogen from formic acid and methanol (dehydrogenation), and for reactions that produce them from carbon dioxide and hydrogen.
As a cooperative graduate school of the Degree Program in Chemistry, the lab is based at the Tsukuba Center of the National Institute of Advanced Industrial Science and Technology (AIST).
The lab also investigates a method that uses iridium complex catalysts to store hydrogen from carbon dioxide in the form of formate, and to release it through formic acid dehydrogenation.
The lab has developed an analytical method that uses UV-Vis spectroscopy to directly observe reactions as they proceed, and uses it to study how catalysts degrade and how the reactions work.
Key terms
- Dehydrogenation
- A reaction that removes hydrogen from a substance. From formic acid, it yields hydrogen and carbon dioxide
- Iridium complex
- A compound that this lab uses as a catalyst for formic acid dehydrogenation and for the reaction that produces formic acid from carbon dioxide and hydrogen
- UV-Vis spectroscopy
- Spectroscopic analysis using ultraviolet and visible light. This lab has developed a method that measures diffuse reflectance while stirring
ResearchResearch themes
The lab works on catalysts for reactions that extract hydrogen from formic acid and methanol, and for reactions that produce them from carbon dioxide and hydrogen. It has developed a spectroscopic method for observing reactions in situ, and uses it to clarify how catalysts degrade and how formic acid forms from carbon dioxide and hydrogen.
Catalysts for extracting hydrogen from formic acid
The lab studies catalysts for dehydrogenation, in which formic acid is decomposed to release hydrogen. Using an iridium complex immobilized on a polymer, it works on methods for producing hydrogen continuously while recovering the catalyst, and for producing high-pressure hydrogen.
*Illustrative imageProducing formic acid from carbon dioxide and hydrogen
The lab studies reactions that produce formic acid from carbon dioxide and hydrogen using iridium complex catalysts. It investigates a method that uses HFIP as the solvent to produce formic acid directly, and a method that stores hydrogen as formate under high-pressure conditions and then releases it.
Spectroscopy for observing reactions in situ
The lab is developing a new UV-Vis spectroscopic method that measures while stirring, quickly separating gas and liquid. Using it, the lab studies how fast formic acid dehydrogenation proceeds and how the catalyst degrades.
MembersFaculty
- ProfessorHajime Kawanami
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Formic acid 85 percent” W. Oelen / CC BY-SA 3.0 (cropped)
- Producing formic acid from carbon dioxide and hydrogen: “A container of liquid carbon dioxide” Whoisjohngalt / CC BY-SA 4.0 (cropped)
- Related lab (無機反応化学): “Winkler Titration Prior Titration” Original uploader was Willwood at en.wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (無機合成化学): “Pigments in test tubes in UCL Chemistry - London, United Kingdom” UCL Mathematical and Physical Sciences from London, UK / CC BY 2.0 (cropped)
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