AIST has developed a large-scale synthetic method of producing imogolite from inexpensive inorganic materials. Using imogolite they have developed both a heat-exchange material for low-temperature heat sources that utilizes the fine inner pores of imogolite, and an anti-dewing agent that utilizes the fine pores between the imogolite tubes. Imogolite is nano-sized tubular aluminum silicate (outer diameter: about 2.5 nm, inner diameter: about 1 nm, length: several tens of nm -- several µm). This material has large specific surface area due to its unique shape, a high affinity for water, and excellent adsorption capability. These qualities make the material applicable to several industrial areas as a heat-exchange medium for heat pumps, a fuel-storage medium, an anti-dewing agent, and as a fast-drying desiccating agent.

Benefits Summary

o Imogolite (nano-sized tubular aluminum silicate) is a natural clay mineral. The amount found in nature, however, is quite small and difficult to obtain. This method allows synthesis of imogolite much the way zeolite can be synthesized. o Large-scale method of imogolite synthesis from inexpensive inorganic materials. o Low production cost. o Many application areas. more

Development Summary

Imogolite has been synthesized on a laboratory scale. Research samples of various types of imogolite in the range of 10-300 grams can be obtained from AIST. more

IP Summary

Patent information has not been disclosed.

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