3rd International Conference on Chemo and BioInformatics, Kragujevac, September 25-26. 2025. (pp. 119-122)
AUTOR(I) / AUTHOR(S): Tijana V. Maksimović, Dimitrije Mara, Pavle I. Tančić, Jelena P. Maksimović, Marina Simović-Pavlović, Zoran P. Nedić, Ljubinka G. Joksović, Maja C. Pagnacco
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DOI: 10.46793/ICCBIKG25.119M
SAŽETAK / ABSTRACT:
Cerium salt of 12-tungstophosphoric heteropoly acid – Ce-PWA has been successfully synthesized. For the preparation of cerium salt (Ce-PWA), the 12-tungstophosphoric heteropoly acid H3PW12O40×29H2O (PWA) is used as the starting material. PWA is obtained by combining the aqueous solution of the Na2WO4×2H2O with the mixture containing H3PO4 and HCl. Afterward, PWA was transformed into H3PW12O40×6H2O (6-PWA) by heating it to 80 °C in a kiln. The aqueous CeCl3×7H2O solution was prepared by dissolving 0.9975 g CeCl3×7H2O in distilled water. This solution is then mixed with an aqueous solution of 6-PWA, slightly heated in order to start the crystallization process, and left during the night to finish the crystallization. The synthesized Ce-PWA salt is then characterized by the following techniques: thermal analysis (TGA and DTA), X-ray powder diffraction (XRPD) and Fourier-transform infrared spectra (FTIR). Synthesized salt Ce-PWA can be successfully used as a precursor in the synthesis process of cerium-doped phosphate tungsten bronze (Ce-PWB).
KLJUČNE REČI / KEYWORDS:
heteropoly acids, cerium salt of 12-tungstophosphoric heteropoly acid (Ce-PWA), synthesis of Ce-PWA, characterization of Ce-PWA
PROJEKAT / ACKNOWLEDGEMENT:
This research is funded by the Ministry of Education and Ministry of Science, Technological Development and Innovation, Republic of Serbia, Grants: No. 451-03- 136/2025-03/200122, 451-03-136/2025-03/200051, 451-03-136/2025-03/200026, 451-03-136/2025-03/200146. M.P. and M.S.P. acknowledge the support of the EU: the EIC Pathfinder Challenges 2022 call through the Research Grant 101115149 (project ARTEMIS).
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