Jana Pisk from the Division of Inorganic Chemistry, in collaboration with PhD student Sara Marijan and Luka Pavić from Ruđer Bošković Institute, collaborators Petr Mošner and Ladislav Koudelka from University of Pardubice, and Associate Professor Željko Skoko from Department of Physics, published a Letter to the Editor entitled Innovative approach to the catalytic effects of oxide glasses and glass-ceramics on the thermal decomposition of fatty acids in the Journal of Non-Crystalline Solids, Elsevier (Journal Citation Reports Q1, IF=3.2).
In the quest to mitigate greenhouse gas emissions, biofuels, particularly biodiesel and new generation renewable diesel, are compelling alternatives to fossil fuels due to their lower toxicity, renewability, biodegradability, lubricity, and cleaner combustion. This study explores cost-effective, innovative catalysts: glasses-(ceramics) derived from the Na2O-V2O5-(Al2O3)-P2O5-Nb2O5 system, for the pyrolytic deoxygenation of long-chain fatty acids into alkanes. Thermogravimetric analysis/differential scanning calorimetry (TG/DSC) assessed catalytic activity, while TG-IR and STA-QMS provided insights into the catalytic mechanisms. Dielectric properties examined through solid-state impedance spectroscopy (SS-IS) revealed that increased V2O5 content enhances dielectric permittivity, dielectric strength, and dielectric loss, correlating with improved catalytic activity. This study highlights the versatility and multifunctionality of oxide glasses-(ceramics), enhanced through simple compositional adjustments.
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