Summary of the technology
MOF materials (metal-organic frameworks or MOFs) are crystalline solids composed of metal ions and organic molecules known as linkers . Two-component structure significantly affects the properties of such materials. MOFs are characterized with high surface areas and flexibility while maintaining high mechanical and thermal resistance. This type of materials behave as molecular sponges – thanks to their structure, they have an ability to adsorb various guest molecules, such as hydrogen, carbon dioxide, water, and even hydrocarbons. MOFs may for instance be used for the storage of gas molecules such us H2, CO2 as well as for molecular identification or separation of mixtures by selective sorption. The materials may be utilized also as catalysts in the synthesis processes of drugs or their adsorption processes.
MOFs can be divided into three types, dependent on how the skeletal structure behaves after the removal of guest molecules. The most interesting materials belong to the so-called third generation MOFs. These systems are characterized by the flexibility of the skeletal structure that reversibly reacts to external stimuli such as light, presence guest molecules, changes in the electric field, temperature. With a unique combination of specific flexibility of the framework and its crystallinity, these materials exhibit unusual properties not observed in the conventional MOFs.The offer relates to the layered manganese systems of third generation. The offer also includes the modifications of the materials with selected ionic substances.
Description of the technology
The offer relates to the new, layered coordination polymers of manganese (MOF), which may be applied for detection and/or storage of various types of molecules, for example CO2, H2, water or hydrocarbons or for building systems based on superionic or electron-ionic conductors. The offer relates also to the method of their preparation and modification.
The layered manganese systems of third generation. The experimental tests have confirmed the selectivity of the MOF materials for CO2 at -60 degrees Celsius upon their prior activation. New type of MOFs can be utilized for the selective removal of CO2 from flue gases or for CO2 capture in tight, confined spaces, where people are (such as during space flights or in submarines, etc.). Due to the reversible crystal-to-amorphous transformation in the presence of ethanol/water, new MOF materials can be used as freshness indicators for food products stored under anhydrous conditions or may be utilized in a device for examining drivers' sobriety. The studies have confirmed the possibility of modification of new, layered MOFs with ionic substances, on the example of the synthesis carried out in the presence of ammonium thiocyanate, NH4SCN. New MOF materials may be utilized for the construction of ion-selective membrane electrodes and in the case of their modification with ionic substances containing alkali metal cations, such as Li+, Na+, K+ also for the construction of new batteries, supercapacitors or fuel cells.
Main advantages of its use
- Inexpensive and readily available starting materials.
- Mild conditions, relatively low temperatures
- The key features of the new MOFs are:- reversible and rapid binding of ethanol, n-butanol and water, alreadyat room temperature,- reversible binding of CO2 and a lack of interaction with N2 and NO molecules,- possibility of modification with ionic substances.
- New MOF materials may be utilized for the construction of ion-selective membrane electrodes and in the case of their modification with ionic substances containing alkali metal cations, such as Li+, Na+, K+ also for the construction of new batteries, supercapacitors or fuel cells.
- New, layered coordination polymers of manganese (MOF) may be applied for detection and/or storage of various types of molecules, for example CO2, H2, water or hydrocarbons.
About Centre Technology Transfer CITTRU
Technology Transfer Office from PolandCentre Technology Transfer CITTRU
Centre for Innovation, Technology Transfer and University Development (CITTRU) is a part of Jagiellonian University, whose role is to promote university research, to support innovation and to create cooperation with the business. CITTRU main task is to offer the scientific achievements of the Jagiellonian University in the market by providing legal protection, licensing, sale of intellectual property rights, creation of academic business, coordination of company-ordered research projects, etc. Currently promoted technologies are mainly focused on new materials science, pharmacology and medical technology.
Inventions offered by Jagiellonian University are promoted and awarded during numerous exhibitions, e.g. 58th International Exhibition of Innovation, Research and New Technologies INNOVA (BRUSSELS 2009), 38th International Exhibition of Invention New Techniques & Products (Geneva 2010) or 24th International exhibition of environmental equipment, technologies and services POLLUTEC (Paris 2009).