@article{MTMT:34753162, title = {Thermodynamics of complex formation of silver(I) with substituted pyridines and cyclic amines in non-aqueous solvents}, url = {https://m2.mtmt.hu/api/publication/34753162}, author = {Sanadar, Martina and Kovačević, Anđela and Cracchiolo, Maria and Melchior, Andrea and Tolazzi, Marilena}, doi = {10.1007/s10973-024-12894-2}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34753162}, issn = {1388-6150}, abstract = {The understanding of the thermodynamic stability and speciation of metal complexes in solution requires access to their enthalpy and entropy of formation. In this work, we specifically focus our investigation on the complexation process of silver(I) ion in acetonitrile (AN) with substituted mono pyridines and cyclic monoamines. The aim of this study is to provide reliable thermodynamic data to obtain insights on metal complex formation, focusing on ligands donor properties and solvation effects. Carefully designed potentiometric and calorimetric experiments allowed to define the species present at different ligand/metal ratios and to obtain the complex formation constants and enthalpies. In general, the enthalpy terms associated with the complex formation are highly exothermic, while the entropy values are always unfavorable. The formation constants of AgL j species for the ligands investigated in AN are compared with those previously obtained in dimethyl sulfoxide (DMSO) and water. The trends in stability constants and enthalpy values are discussed in relation to the p K a data available in the different solvents. Higher p K a values correspond to greater ligand basicity and result in more stable and more enthalpy stabilized complexes.}, year = {2024}, eissn = {1572-8943}, orcid-numbers = {Melchior, Andrea/0000-0002-5265-1396} } @article{MTMT:34727226, title = {Porous polypropylene produced by phase separation for high solar reflectivity and passive cooling}, url = {https://m2.mtmt.hu/api/publication/34727226}, author = {Vámos, Csenge and Bárány, Tamás and Marosfoi, Botond Bela}, doi = {10.1007/s10973-024-12891-5}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, volume = {Előzetes kiadás / Early view}, unique-id = {34727226}, issn = {1388-6150}, abstract = {Passive cooling techniques have gained widespread use in everyday life and various industries by utilizing sunlight reflection to cool objects without requiring additional energy input. Porous polymer materials possess the unique ability to provide both thermal insulation and solar reflection due to their inherent multiphase structure. In this study, we developed a porous polypropylene (PP) with a hierarchically structured surface layer using a simple and efficient solvent treatment method based on recrystallization. As a result, the porous structure and hierarchically structured surface significantly increase the solar reflectance from 11 to 86%. We found that by manipulating the recrystallization process and using reflective additives, solar reflectivity can be further improved. With the use of TiO2 and BaSO4 additives, a solar reflectance of 90% was achieved, while a solar reflectance of 93% was achieved with nucleating agents. In practical terms, these improvements result in significant temperature reductions in cooling performance tests compared to extruded PP sheets: 17, 19, and 22 degrees C for porous PP, porous PP/TiO2 or PP/BaSO4, and porous nucleated PP, respectively. The modification method introduced could help PP offer new possibilities for developing low-cost chemically resistant and thermally insulating layers in thermal management applications.}, keywords = {MEMBRANES; SURFACES; SCATTERING; THERMODYNAMICS; TIO2; PIGMENTS; Chemistry, Analytical; Thermal insulation; REFLECTANCE; Solar reflectance; Passive cooling material; Hierarchical porous layer}, year = {2024}, eissn = {1572-8943}, orcid-numbers = {Bárány, Tamás/0000-0002-9196-7852} } @article{MTMT:34691294, title = {Challenges in the thermal modeling of highly porous carbon foams}, url = {https://m2.mtmt.hu/api/publication/34691294}, author = {Fehér, Anna Éva and Kovács, Róbert Sándor and Sudár, Ákos and Barnaföldi, Gergely Gábor}, doi = {10.1007/s10973-024-12927-w}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34691294}, issn = {1388-6150}, abstract = {The heat pulse (flash) experiment is a well-known, widely used method to determine thermal diffusivity. However, for heterogeneous, highly porous materials, neither the measurement nor the evaluation methodologies are straightforward. In the present paper, we focus on two open-cell carbon foam types, differing in their porosity but having the same sample size. Recent experiments showed that a non-Fourier behavior, called ’over-diffusive’ propagation, can be present for such a complex structure. The (continuum) Guyer–Krumhansl equation stands as a promising candidate to model such transient thermal behavior. In order to obtain a reliable evaluation and thus reliable thermal parameters, we utilize a novel, state-of-the-art evaluation procedure developed recently using an analytical solution of the Guyer–Krumhansl equation. Based on our observations, it turned out that the presence of high porosity alone is necessary but not satisfactory for non-Fourier behavior. Additionally, the mentioned non-Fourier effects are porosity-dependent; however, porous samples can also follow the Fourier law on a particular time scale. These data serve as a basis to properly identify the characteristic heat transfer mechanisms and their corresponding time scales, which altogether result in the present non-Fourier behavior. Based on these, we determined the validity region of Fourier’s law in respect of time scales.}, year = {2024}, eissn = {1572-8943}, orcid-numbers = {Fehér, Anna Éva/0000-0002-2366-6388; Kovács, Róbert Sándor/0000-0001-5822-6035} } @article{MTMT:34686204, title = {Surface modification of MXene nanosheets with P-N-containing agents for boosting flame retardancy of epoxy resin}, url = {https://m2.mtmt.hu/api/publication/34686204}, author = {Wei, Qi and Zhang, Jiale and Cheng, Yulong and Xie, Zhehan and Liu, Yingting and Zhou, Keqing}, doi = {10.1007/s10973-024-12938-7}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34686204}, issn = {1388-6150}, year = {2024}, eissn = {1572-8943}, orcid-numbers = {Zhou, Keqing/0000-0001-7680-3123} } @article{MTMT:34660457, title = {Carbon nanotube-graphene-based nanofluids: a comprehensive review on the role of thermal conductivity and its solar energy applications}, url = {https://m2.mtmt.hu/api/publication/34660457}, author = {Bharadwaj, Gaurav and Sharma, Kamal and Pandey, A. K. and Gupta, Aayush}, doi = {10.1007/s10973-023-12840-8}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34660457}, issn = {1388-6150}, keywords = {Graphene; thermal conductivity; carbon nanotube; Nanofluids; Solar applications}, year = {2024}, eissn = {1572-8943} } @article{MTMT:34654778, title = {A comprehensive review of Trinitor components: A sustainable waste heat recovery polygenerative system for diesel vehicles}, url = {https://m2.mtmt.hu/api/publication/34654778}, author = {Duraivel, B. and Shaik, S. and Bansal, R. and Khanda, S.D. and Patel, D. and Natarajan, M. and Saleel, C.A. and Jilte, R.D. and Ağbulut, Ü.}, doi = {10.1007/s10973-023-12830-w}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, volume = {2024}, unique-id = {34654778}, issn = {1388-6150}, year = {2024}, eissn = {1572-8943} } @article{MTMT:34653889, title = {Lamellar double hydroxides as pharmaceutical excipients: a compatibility study}, url = {https://m2.mtmt.hu/api/publication/34653889}, author = {de Moura Ferraz, Leslie Raphael and Silva, Laysa Creusa Paes Barreto Barros and de Melo, Demis Ferreira and da Silva, Natália Millena and Alves, Larissa Pereira and do Nascimento Gomes Barbosa, Ilka and Erhardt, Manuela Carine Cavalcante and Véras, Leiz Maria Costa and Rolim, Larissa Araújo and Rolim Neto, Pedro José}, doi = {10.1007/s10973-024-12882-6}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34653889}, issn = {1388-6150}, year = {2024}, eissn = {1572-8943}, orcid-numbers = {Silva, Laysa Creusa Paes Barreto Barros/0000-0002-2182-7272} } @article{MTMT:34653795, title = {Investigating the effect of external heat flux and atomic structure on the thermal behavior and phase change process of sodium sulfate/magnesium chloride hexahydrate and paraffin with molecular dynamics simulation}, url = {https://m2.mtmt.hu/api/publication/34653795}, author = {Zamani, Mohammadreza and Toghraie, Davood and Mehmandoust, Babak and Abedinzadeh, Reza and Najafi, Mohammad}, doi = {10.1007/s10973-023-12826-6}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34653795}, issn = {1388-6150}, keywords = {Heat flux; Molecular Dynamics Simulation; Thermal behavior; Phase change material (PCM); Charge time; Discharge time}, year = {2024}, eissn = {1572-8943} } @article{MTMT:34638584, title = {Effects of climate variables and nanofluid-based cooling on the efficiency of a liquid spectrum filter-based concentrated photovoltaic thermal system}, url = {https://m2.mtmt.hu/api/publication/34638584}, author = {Kumar, Sushil and Kumar, Raj and Thakur, Robin and Kumar, Sushil and Lee, Daeho}, doi = {10.1007/s10973-023-12836-4}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34638584}, issn = {1388-6150}, keywords = {Thermal efficiency; Nanofluid; Electrical efficiency; Fresnel lens; Liquid spectrum filter}, year = {2024}, eissn = {1572-8943}, orcid-numbers = {Kumar, Raj/0000-0002-6507-7231} } @article{MTMT:34634033, title = {Entransy dissipation thermal resistance for asphalt pavement and application in optimization of cooling structure}, url = {https://m2.mtmt.hu/api/publication/34634033}, author = {Zhao, Y and Liu, XM}, doi = {10.1007/s10973-023-12834-6}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, unique-id = {34634033}, issn = {1388-6150}, year = {2024}, eissn = {1572-8943} }