Article
Thermodynamics
Dan-Dan Du, Ning Ren, Jian-Jun Zhang
Summary: Two novel isostructural lanthanide complexes were synthesized using 2-fluorobenzoic acid and 5,5'-dimethy-2,2'-bipyridine, characterized by IR, elemental analysis, and single-crystal X-ray diffraction, showing specific crystal structure and thermal behavior.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Multidisciplinary
Jia-Yuan Zhao, Ning Ren, Ying-Ying Zhang, Kun Tang, Jian-Jun Zhang
Summary: This article presents a series of newly synthesized complexes and their characterization studies. Single crystal data revealed that these complexes are binuclear and possess different crystal structures. The thermal decomposition mechanism of these complexes was investigated using TG/DSC-FTIR technology.
FRONTIERS IN CHEMISTRY
(2021)
Article
Thermodynamics
Halina Gluchowska, Renata Lyszczek, Anna Jusza, Ryszard Piramidowicz
Summary: The microwave-assisted solvothermal method was used to prepare lanthanide (III) complexes with N,N'-dimethylformamide (DMF), which contain DMF and water molecules in their structures. The complexes exhibit varying thermal stability, with solvent molecules being removed in a more complex manner, especially in heavy lanthanide complexes. Their thermal stability is higher in a nitrogen atmosphere. The thermal decomposition of the complexes was investigated through TG-FTIR methods, showing the evolution of volatile products such as DMF, H2O, CO2, CO, and CH4 during heating.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Dan-Dan Du, Xin-Xin Wang, Yuan-Yuan Ma, Ning Ren, Jian-Jun Zhang
Summary: The reaction between 2,4-difluorobenzoic acid and 5,5'-dimethyl-2,2'-bipyridine with Ln(NO3)(3)center dot 6H(2)O via slow evaporation produced a series of new binuclear lanthanide complexes, which were characterized by various techniques. The complexes showed two structural types, and thermal decomposition as well as the luminescent property of one complex containing Eu(III) were studied in detail.
THERMOCHIMICA ACTA
(2021)
Review
Pharmacology & Pharmacy
Marek Wesolowski, Edyta Leyk
Summary: Using multiple measurement techniques ensures reliable interpretation of sample changes during heating, eliminating uncertainty and improving data interpretation. This paper briefly characterizes thermal analysis techniques coupled with spectroscopic or chromatographic techniques. Various design solutions for coupled thermogravimetry (TG) with infrared spectroscopy (FTIR), mass spectrometry (MS), and gas chromatography/mass spectrometry (GC/MS) systems are discussed. The importance of coupled techniques in pharmaceutical technology is highlighted, as they provide insights into the behavior and degradation of medicinal substances during heating, allowing determination of decomposition mechanisms and prediction of shelf life and storage conditions. In addition, design solutions for interpreting differential scanning calorimetry (DSC) curves using observation or simultaneous recording of FTIR spectra and X-ray diffractograms (XRD) are characterized, addressing the inherent non-specificity of DSC.
Article
Chemistry, Analytical
Lidia Zapala, Malgorzata Kosinka-Pezda, Urszula Maciolek, Lukasz Byczynski
Summary: Seven new complexes of niflumic acid with light lanthanide ions were synthesized and their minimal formulas were determined. The carboxylate groups of the ligand can coordinate metal ions in a bidentate chelating or tridentate chelating-bridging mode. Thermal analysis showed that the decomposition of the complexes is a multistage process, depending on the metal ion and the atmosphere. The decomposition pathways and gaseous products were examined using coupled TG-FTIR-MS techniques.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Chemistry, Physical
Shuo Geng, Ning Ren, Shu-Mei He, Jian-Jun Zhang
Summary: Three new lanthanide complexes were synthesized using conventional solution synthesis, with complex 1 being mononuclear while complexes 2 and 3 are binuclear molecules. Additionally, complex 3 exhibits strong green fluorescence. The complexes were characterized and their thermal decomposition mechanism was studied.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Polymer Science
Dmytro Vlasyuk, Renata Lyszczek
Summary: The impact of different synthetic procedures on the structure and thermal properties of coordination polymers of 1H-pyrazole-3,5-dicarboxylic acid with lanthanide ions was investigated. The complexes exhibited high yields of reactions and crystallinity. The Eu(III), Tb(III), and Er(III) coordination polymers prepared under different conditions were found to be isomorphous, while only the neodymium(III) compounds had a different crystal structure. The thermal stability of the produced complexes was correlated with the synthesis conditions, with those prepared under hydrothermal conditions showing the highest stability.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Thermodynamics
Gessiane F. Germano, Augusto L. Souto, Wamberto A. M. De Almeida, Fatima D. Freire, Dayanne L. Porto, Ana P. B. Gomes, Leandro S. Ferreira, Fernando H. A. Nogueira, Rita C. O. Sebastiao, Raquel B. Giordani, Cicero F. S. Aragao
Summary: The study characterized Monocrotaline using thermal and non-thermal techniques, revealing structural changes and decomposition processes at specific temperatures. The kinetic parameters indicated a significant contribution of geometric contraction models to the degradation process, in accordance with the experimental results.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Chen-Lu Wang, Su-Ling Xu, Ze-Jun Liu, Ning Ren, Jian-Jun Zhang
Summary: Two new complexes were successfully synthesized and characterized, and their properties were studied.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Shuo Geng, Ning Ren, Jian-Jun Zhang
Summary: Five new lanthanide complexes were synthesized using two different experimental methods, and their structures and properties were studied. The thermal decomposition mechanism and solid state fluorescence spectra were also analyzed.
Article
Biochemistry & Molecular Biology
Jing Zhou, Junlin Zhang, Shaoli Chen, Fengqi Zhao, Lili Qiu, Zihui Meng, Li Ding, Bozhou Wang, Qing Pan
Summary: This study conducted a comparative thermal research on molecular perovskite structures and investigated the factors influencing their thermal decomposition. The results showed that the choice of organic component and the substitution of cations can affect the stability and decomposition temperature of molecular perovskites. Furthermore, the kinetic parameters and synergistic catalysis mechanism of perovskite decomposition were studied using experimental and computational methods.
Article
Engineering, Environmental
Jingjing Li, Binlin Dou, Hua Zhang, Hao Zhang, Haisheng Chen, Yujie Xu
Summary: The pyrolysis and combustion processes of camphor biomass waste were studied using DSC/TGA-DTG/GC-MS/FTIR, with non-isothermal kinetics investigated under different heating rates. The results indicated different phases of mass loss, accompanied by exothermic and/or endothermic reactions.Activation energies for main mass losses in the second phase were determined to be 39.98-56.25 and 109.26-135.84 kJ/mol, respectively.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Beata Cristovao, Dariusz Osypiuk, Agata Bartyzel
Summary: This study synthesized new heterotrinuclear complexes and investigated their molecular structure and magnetic properties, providing important information for further research into the physical and chemical properties of metal complexes.
Article
Engineering, Electrical & Electronic
David G. King, Surya D. Pandita, Francisco D. Nieves Bogonez, Gerard F. Fernando
Summary: This paper presents the design and implementation of a multi-measurand fibre-optic probe for a differential scanning calorimeter. The probe consists of a disposable cleaved-end optical fibre as a Fresnel reflection sensor and an array of noncontact optical fibres for acquiring FTIR spectra. The results show excellent correlation between the data obtained from the calorimeter and the optical techniques.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Caleb J. Bennett, Helen E. A. Brand, Alexander K. L. Yuen, Maria K. Nicholas, Brendan J. Kennedy
Summary: The temperature dependence of the crystal structure of Potassium Hexaiodoplatinate(IV) between 80 and 500 K is studied. Different crystal structures are observed at different temperatures, including monoclinic, tetragonal, and cubic structures. Accurate determination of the structures of K2PtI6 is important for further theoretical and practical research.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhuo Zeng, Jiangfu Zheng, Xiaoming Li, Changzheng Fan, Rongying Zeng, Wenqing Tang
Summary: An efficient method for phosphate removal from wastewater is urgently needed due to the environmental issue caused by excessive phosphorus. In this study, calcium aluminum layered double hydroxides (CaAl-LDHs) and six amino acid intercalated calcium aluminum layered double hydroxides (CaAl-amino acid-LDHs) were prepared and compared for their phosphate adsorption performance. L-Aspartic acid intercalated calcium aluminum layered double hydroxides (CaAl-Asp-LDHs) exhibited the highest phosphate adsorption capacity and faster removal rate compared to CaAl-LDHs. The phosphate adsorption mechanism on CaAl-Asp-LDHs involved electrostatic attraction, hydrogen bonds, complexation, and ion exchange. This environmentally friendly material shows promising potential for efficient phosphate removal from aquatic environments.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rouzbeh Aghaei Hakkak, Thomas Schleid
Summary: The novel guanidinium hydro-closo-borates with [BnHn]2- (n = 10 and 12) anions were successfully synthesized via direct reaction. The crystal structures exhibit hydrogen bonding interactions and have the potential to facilitate H2 generation.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Liqiang Ma, Pengpeng Wei, Jingfang Li, Liye Liang, Guangming Li
Summary: A novel catalyst, H4PVMo2W9O40@rht-MOF-1, was developed using a one-pot hydrothermal method. It exhibited high efficiency and reusability in esterification reactions.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Liudmila A. Gorelova, Valentiva A. Yukhno, Maria G. Krzhizhanovskaya, Oleg S. Vereshchagin
Summary: Two new Ga-Ge disordered feldspar-related compounds were successfully synthesized using melt crystallization methods. Their stability and thermal expansion properties were studied under high-temperature conditions. The results showed that both compounds are stable within the studied temperature range and exhibit anisotropic thermal expansion.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Seifeddine Bdey, Nesrine Boussadoune, Francois Allard, Jacques Huot, Gabriel Antonius, Noura Fakhar Bourguiba, Pedro Nunez
Summary: The structure of a novel arsenate compound Na3Al3(AsO4)4 has been determined using X-ray diffraction. The crystal exhibits a monoclinic space group with suitable pathways for Na+ ion migration. The accuracy of the structural model was confirmed using various validation tools and density functional theory calculations.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Amit Kumar Atri, Ujwal Manhas, Sumit Singh, Irfan Qadir, Shikha Sharma, Preteek Sharma, Devinder Singh
Summary: This study synthesizes new oxygen deficient triple layered Ruddlesden-Popper (RP) phases via sol-gel method and investigates the effects of Cr3+ doping on their structural, optical, magnetic, and photocatalytic properties. The experimental results demonstrate that Cr3+ doping alters the interactions and leads to excellent photocatalytic performance in some phases.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Dat Le Thanh, Amandine Guiet, Emmanuelle Suard, Romain Berthelot
Summary: In this study, FeNb11O29 powder samples were prepared using a microwave-assisted solid-state synthesis method for the first time. The samples obtained rapidly from submicrometric oxide precursors showed enhanced cycling performance, possibly due to the easier ionic diffusion occurring in the smaller particles.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Raimund Ziegler, Felix R. S. Purtscher, Thomas S. Hofer, Gunter Heymann, Hubert Huppertz
Summary: We have successfully synthesized a new tellurium borate crystal under high-pressure and high-temperature conditions. The crystal structure and theoretical calculations have been thoroughly discussed.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Subhendu Jana, Eric A. Gabilondo, Paul A. Maggard
Summary: This study reports the synthesis and characterization of two previously unknown multinary selenides, Ba8Hf2Se11(Se-2) and Ba9Hf3Se14(Se-2), which display unique structures and optoelectronic properties competitive with existing perovskite-type chalcogenides.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Fei Ruan, Chonggui Lei, Fenglong Zhang, Jinxiao Bao, Fen Zhou, Min Xie, Pengfei Xu, Jianquan Gao
Summary: Studying the diffusion properties of hydrogen is important for designing new proton conductors. In the past, the chemical diffusion coefficient of hydrogen in proton conductors was usually obtained through a manual calculation method, resulting in difficulty in controlling the calculation accuracy. To address this issue, a mathematical algorithm and C language computer program were developed to calculate the chemical diffusion coefficient based on Fick's second law and Romberg numerical integral. The algorithm showed high precision and powerful computing function, and has the potential to replace the manual calculation method in calculating the chemical diffusion coefficient for hydrogen in proton conductors.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Deepika Shanubhogue, Suraj Mangavati, Ashok Rao, Ru-Ting Tsao, Yung-Kang Kuo
Summary: In this study, the effect of Y doping at the Sn-site on the structural, electrical, and low-temperature thermoelectric properties of the Cu2SnSe3 system is investigated. Y-doped compounds Cu2Sn1-xYxSe3 show reduced electrical resistivity, enhanced power factor, and decreased thermal conductivity, resulting in higher ZT values.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Wei Hong, Min Qing, Xun He, Lei Wang, Yu Pu, Qiyu Li, Zhimin He, Qin Dong, Rong Li, Xinglong Gou
Summary: This study developed a simple method to prepare SnS2 nanosheets and assembled them with MXene to form SnS2/MXene. The composite material exhibited abundant active sites, superior electron/ion transfer kinetics, and a unique 2D interlayer structure, resulting in high specific capacity, outstanding rate capability, and excellent cycling stability, with potential applications in LIBs.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Heng-Yu Ruan, Xue-Qian Wu, Tian-Yu Zhang, Yi Yuan, Le Wang, Ya-Pan Wu, Qing-Wen Han, Ruan Chi, Dong-Sheng Li
Summary: Two isostructural metalorganic frameworks (MOFs), CTGU-36-Co and CTGU-36-Ni, were synthesized, and CTGU-36-Ni demonstrated high activity as a molecular electrocatalyst for the methanol oxidation reaction.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rachid Fakhreddine, Ali Ouasri, Abderrahim Aatiq
Summary: This paper reports the synthesis, structure, and spectroscopic studies of three novel metal orthophosphate salts. The structures of these compounds were refined using X-ray powder diffraction data. The infrared and Raman analysis revealed their symmetries and the UV-visible investigation determined their optical properties.
JOURNAL OF SOLID STATE CHEMISTRY
(2024)