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Adsorption Chemistry Lab
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An adsorption chemistry lab that uses NMR to study how molecules move in tiny spaces.
AboutAbout the lab
Exploring the behavior of molecules confined in tiny spaces.
The Adsorption Chemistry Lab aims to clarify, at the molecular level, how molecules behave when they are confined in tiny spaces.
As a space becomes smaller, even familiar substances such as water can show structures and properties different from those we normally know.
The lab studies molecular motion mainly through experiments using nuclear magnetic resonance (NMR) spectroscopy.
The lab also aims to create materials with new functions, such as proton conduction, electron conduction, and one-dimensional spin chains, by controlling how molecules are arranged in the space.
Key terms
- Nuclear magnetic resonance (NMR) spectroscopy
- An analytical technique that examines how the magnetic properties of atomic nuclei respond to radio waves in a magnetic field. It provides information on molecular structure and motion.
- Physisorption
- Adsorption in which van der Waals forces play the main role. It is one of the phenomena the lab works to elucidate at the molecular level.
- Porous coordination polymer
- A highly crystalline porous material with a regular, periodic structure. It takes molecules into its pores.
ResearchResearch themes
The Adsorption Chemistry Lab studies, through the motion of molecules, the mechanisms by which the structures and properties of molecular assemblies confined in tiny spaces arise. Centered on nuclear magnetic resonance (NMR) spectroscopy and also using computer simulations, the lab aims to elucidate physisorption at the molecular level.
*Illustrative imagePhase Changes of Adsorbed Molecules in Nanospaces
Inside porous coordination polymers with regular pores, the lab studies how adsorbed molecules undergo phase changes between a state in which they stay in the pores in an ordered arrangement and a state in which they move around between pores. Applications to materials whose properties switch with temperature are also expected.
*Illustrative imageHow Bulky Molecules Are Adsorbed
The porous coordination polymer ZIF-8 can adsorb molecules larger than its pore openings. Using solid-state NMR, the lab showed that a large flipping motion of the ring in the linker temporarily widens the pore size, which makes it possible for bulky molecules to be adsorbed.
MembersFaculty
The members of the Adsorption Chemistry Lab are faculty and master's and undergraduate students.
- ProfessorTakahiro Ueda
VoicesStudent voices
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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: “Bruker 600 Mhz NMR Spectrometer” SiriusHT / CC BY-SA 4.0 (cropped)
- Phase Changes of Adsorbed Molecules in Nanospaces: “Structure of zeolitic imidazolate frameworks” François-Xavier Coudert / CC BY 4.0 (cropped)
- How Bulky Molecules Are Adsorbed: “Metal Organic Framework (MOF) ( )” National Institute of Standards and Technology / Public domain (cropped)
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