TY  - JOUR
AU  - Džunuzović, Jasna
AU  - Stefanović, Ivan
AU  - Džunuzović, Enis
AU  - Kovač, Tijana
AU  - Malenov, Dušan
AU  - Basagni, Andrea
AU  - Marega, Carla
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7768
UR  - https://www.mdpi.com/journal/polymers/special_issues/87TBL5L4WY
AB  - The benefit of being acquainted with thermal properties, especially the thermal stability of polyurethanes (PU), and simplified methods for their improvement is manifold. Considering this, the effect of embedding different amounts of unmodified and surface-modified TiO2 nanoparticles (NPs) within PU, based on polycaprolactone (PCL) and Boltorn® aliphatic hyperbranched polyester, on PU properties was investigated. Results obtained via scanning electron microscopy, swelling measurements, mechanical tests and thermogravimetric analysis revealed that TiO2 NPs can be primarily applied to improve the thermal performance of PU. Through surface modification of TiO2 NPs with an amphiphilic gallic acid ester containing a C12 long alkyl chain (lauryl gallate), the impact on thermal stability of PU was greater due to the better dispersion of modified TiO2 NPs in the PU matrix compared to the unmodified ones. Also, the distinct shape of DTG peaks of the composite prepared using modified TiO2 NPs indicates that applied nano-filler is mostly embedded in soft segments of PU, leading to the delay in thermal degradation of PCL, simultaneously improving the overall thermal stability of PU. In order to further explore the thermal degradation process of the prepared composites and prove the dominant role of incorporated TiO2 NPs in the course of thermal stability of PU, various iso-conversional model-free methods were applied. The evaluated apparent activation energy of the thermal degradation reaction at different conversions clearly confirmed the positive impact of TiO2 NPs on the thermal stability and aging resistance of PU.
PB  - MDPI
T2  - Polymers
T1  - Fabrication of Polycaprolactone-Based Polyurethanes with Enhanced Thermal Stability
VL  - 16
IS  - 13
SP  - 1812
DO  - 10.3390/polym16131812
ER  - 

@article{
author = "Džunuzović, Jasna and Stefanović, Ivan and Džunuzović, Enis and Kovač, Tijana and Malenov, Dušan and Basagni, Andrea and Marega, Carla",
year = "2024",
abstract = "The benefit of being acquainted with thermal properties, especially the thermal stability of polyurethanes (PU), and simplified methods for their improvement is manifold. Considering this, the effect of embedding different amounts of unmodified and surface-modified TiO2 nanoparticles (NPs) within PU, based on polycaprolactone (PCL) and Boltorn® aliphatic hyperbranched polyester, on PU properties was investigated. Results obtained via scanning electron microscopy, swelling measurements, mechanical tests and thermogravimetric analysis revealed that TiO2 NPs can be primarily applied to improve the thermal performance of PU. Through surface modification of TiO2 NPs with an amphiphilic gallic acid ester containing a C12 long alkyl chain (lauryl gallate), the impact on thermal stability of PU was greater due to the better dispersion of modified TiO2 NPs in the PU matrix compared to the unmodified ones. Also, the distinct shape of DTG peaks of the composite prepared using modified TiO2 NPs indicates that applied nano-filler is mostly embedded in soft segments of PU, leading to the delay in thermal degradation of PCL, simultaneously improving the overall thermal stability of PU. In order to further explore the thermal degradation process of the prepared composites and prove the dominant role of incorporated TiO2 NPs in the course of thermal stability of PU, various iso-conversional model-free methods were applied. The evaluated apparent activation energy of the thermal degradation reaction at different conversions clearly confirmed the positive impact of TiO2 NPs on the thermal stability and aging resistance of PU.",
publisher = "MDPI",
journal = "Polymers",
title = "Fabrication of Polycaprolactone-Based Polyurethanes with Enhanced Thermal Stability",
volume = "16",
number = "13",
pages = "1812",
doi = "10.3390/polym16131812"
}

Džunuzović, J., Stefanović, I., Džunuzović, E., Kovač, T., Malenov, D., Basagni, A.,& Marega, C.. (2024). Fabrication of Polycaprolactone-Based Polyurethanes with Enhanced Thermal Stability. in Polymers
MDPI., 16(13), 1812.
https://doi.org/10.3390/polym16131812

Džunuzović J, Stefanović I, Džunuzović E, Kovač T, Malenov D, Basagni A, Marega C. Fabrication of Polycaprolactone-Based Polyurethanes with Enhanced Thermal Stability. in Polymers. 2024;16(13):1812.
doi:10.3390/polym16131812 .

Džunuzović, Jasna, Stefanović, Ivan, Džunuzović, Enis, Kovač, Tijana, Malenov, Dušan, Basagni, Andrea, Marega, Carla, "Fabrication of Polycaprolactone-Based Polyurethanes with Enhanced Thermal Stability" in Polymers, 16, no. 13 (2024):1812,
https://doi.org/10.3390/polym16131812 . .

TY  - JOUR
AU  - Šalipur, Hristina
AU  - Fronczak, Maciej
AU  - Prašnikar, Anže
AU  - Kamal, Khaja Mohaideen
AU  - Mudrinić, Tihana
AU  - Hadnađev-Kostić, Milica
AU  - Likozar, Blaž
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7610
AB  - The concept of photocatalytic CO2 and H2O conversion to solar fuels and value-added products provides simultaneous solution for increased energy demands and environmental problems. However, the lack of efficient photocatalysts restrains the large-scale development of photocatalytic technology. In the present study, noble (Pt and Au) and transition metal (Ni) doped nanoflakes assembled on TiO2@carbon microrods with high surface area and rutile crystal structure is prepared via fast, versatile solvothermal method. The photocatalytic performance of the prepared nanocomposites was evaluated in two photocatalytic systems: CO2 reduction and hydrogen production via photoreforming. Pt-doped catalyst showed enhanced hydrogen production efficiency and increased CH4 selectivity, while Ni-doped catalyst exhibited remarkable CO2 reduction activity with higher selectivity towards CO. The mechanism of Pt-promoted CH4 formation and Ni- and Au-promoted CO formation was thoroughly discussed regarding kinetic and thermodynamic parameters.
PB  - Elsevier
T2  - Catalysis Today
T1  - Metal doped TiO2 decorated carbon nanostructured materials as an emerging photocatalysts for solar fuels production
VL  - 436
SP  - 114724
DO  - 10.1016/j.cattod.2024.114724
ER  - 

@article{
author = "Šalipur, Hristina and Fronczak, Maciej and Prašnikar, Anže and Kamal, Khaja Mohaideen and Mudrinić, Tihana and Hadnađev-Kostić, Milica and Likozar, Blaž and Dostanić, Jasmina and Lončarević, Davor",
year = "2024",
abstract = "The concept of photocatalytic CO2 and H2O conversion to solar fuels and value-added products provides simultaneous solution for increased energy demands and environmental problems. However, the lack of efficient photocatalysts restrains the large-scale development of photocatalytic technology. In the present study, noble (Pt and Au) and transition metal (Ni) doped nanoflakes assembled on TiO2@carbon microrods with high surface area and rutile crystal structure is prepared via fast, versatile solvothermal method. The photocatalytic performance of the prepared nanocomposites was evaluated in two photocatalytic systems: CO2 reduction and hydrogen production via photoreforming. Pt-doped catalyst showed enhanced hydrogen production efficiency and increased CH4 selectivity, while Ni-doped catalyst exhibited remarkable CO2 reduction activity with higher selectivity towards CO. The mechanism of Pt-promoted CH4 formation and Ni- and Au-promoted CO formation was thoroughly discussed regarding kinetic and thermodynamic parameters.",
publisher = "Elsevier",
journal = "Catalysis Today",
title = "Metal doped TiO2 decorated carbon nanostructured materials as an emerging photocatalysts for solar fuels production",
volume = "436",
pages = "114724",
doi = "10.1016/j.cattod.2024.114724"
}

Šalipur, H., Fronczak, M., Prašnikar, A., Kamal, K. M., Mudrinić, T., Hadnađev-Kostić, M., Likozar, B., Dostanić, J.,& Lončarević, D.. (2024). Metal doped TiO2 decorated carbon nanostructured materials as an emerging photocatalysts for solar fuels production. in Catalysis Today
Elsevier., 436, 114724.
https://doi.org/10.1016/j.cattod.2024.114724

Šalipur H, Fronczak M, Prašnikar A, Kamal KM, Mudrinić T, Hadnađev-Kostić M, Likozar B, Dostanić J, Lončarević D. Metal doped TiO2 decorated carbon nanostructured materials as an emerging photocatalysts for solar fuels production. in Catalysis Today. 2024;436:114724.
doi:10.1016/j.cattod.2024.114724 .

Šalipur, Hristina, Fronczak, Maciej, Prašnikar, Anže, Kamal, Khaja Mohaideen, Mudrinić, Tihana, Hadnađev-Kostić, Milica, Likozar, Blaž, Dostanić, Jasmina, Lončarević, Davor, "Metal doped TiO2 decorated carbon nanostructured materials as an emerging photocatalysts for solar fuels production" in Catalysis Today, 436 (2024):114724,
https://doi.org/10.1016/j.cattod.2024.114724 . .