6th International FEZA Conference

FEZA_2014_LesezeichenThe German Zeolite Group together with the Federation of European Zeolite Associations (FEZA) cordially invites you to the 6th International FEZA conference, which will be held from September, 8th through 11th in Leipzig. Located in the heart of Europe, Leipzig is a most attractive city with a rich history and broad culture, in particular for music. Following the successful concept of the previous meetings in Eger (1999), Taormina (2002), Prague (2005), Paris (2008) and Valencia (2011), the conference will cover all aspects of science and technology associated with ordered porous materials – zeolites, zeotypes, mesostructured materials and porous coordination polymers .

The theme “Porous Systems: From Novel Materials to Sustainable Solutions” embraces the main topics of this conference including synthesis of porous solids, advanced characterization, modeling, gas adsorption and separation, catalytic applications, natural occurring zeolites, sustainable technological uses of porous systems and applications in biology and medicine.

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Zeolite manual for the organic chemist

“Zeolite Manual for the Organic Chemist” (release June 2012) provides 500 pages of practical information on the use of micro and mesoporous materials in separation and catalysis written by experts in the field. It is a guide for any organic chemist.

Zeolite manual for the organic chemist

A discovery in the field of heat storage

Researchers from the Laboratory for Inorganic Chemistry and Technology (L09) Nataša Zabukovec Logar, Alenka Ristić and Venčeslav Kaučič in collaboration with Stefan Henninger (Fraunhofer Institute, Freiburg) developed a mechanism that predicts the heat storage potential of numerous known or new microporous aluminophosphates. The discovery was published in a prestigious journal covering the area of materials scienceAdvanced Functional Materials (impact factor 8.49).

The utilisation of the reversible chemical and physical sorption of water on solids provides a new long-term thermal energy storage concept, also in combination with solar thermal collectors. However, up to now there have been no systematic studies of the possible mechanisms for heat storage enhancement concerning materials optimisation. Based on a comparative thermogravimetric and calorimetric study of water sorption in small-pore aluminophosphate materials (SAPO-34, AlPO4-18 and APO-Tric) the authors proposed that the formation of highly ordered water clusters in the pores is a driving force for a sudden water uptake in a narrow relative pressure range, which is a prerequisite for their use in storage systems and crucially determines their sorption efficiency. The formation of clusters is enabled by rapid and reversible changes in the framework (Al) coordination and optimal pore diameters.

The article is available here.

A discovery of novel catalyst for catalytic wastewater purification

Researchers from Laboratory for Inorganic Chemistry and Technology (L09) Nataša Novak Tušar, Darja Maučec, Matjaž Mazaj, Mojca Rangus and Venčeslav Kaučič in collaboration with Albin Pintar, Magda Cotman (Laboratory for Environmental Sciences and Engeenering L05) and Iztok Arčon (University Nova Gorica) designed a novel and environmentally friendly, cost-effective as well as highly efficient catalyst for catalytic wastewater purification. The discovery was published in one of the prestigious journals covering the area of materials science – Advanced Functional Materials (impact factor 8.49).

Wet hydrogen peroxide catalytic oxidation (WHPCO) is one of the most promising industrially applicable advanced oxidation processes (AOPs) for the decomposition of organic pollutants in water. Researchers demonstrated for the first time that manganese functionalized silicate nanoparticles act as a superior catalyst in WHPCO, since they can completely decompose and convert to carbon dioxide 80 % of a test organic compound in 30 minutes at neutral pH and room temperature. By performing structural characterization of the material using X-ray absorption spectroscopic techniques and catalytic tests, it was also proven that the superior activity of the catalyst can be attributed uniquely to the manganese incorporated into silicate framework of nanoparticles, and not to manganese in the form of manganese oxides (Mn3O4, Mn2O3). The presented material thus introduces a new family of catalysts, which possess superior efficiency for the decomposition of organic pollutants dissolved in water.

The article is available here.