Academic literature on the topic 'Thermal Gravimetric Analysis Mass Spectrometry (TGA-MS)'

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Journal articles on the topic "Thermal Gravimetric Analysis Mass Spectrometry (TGA-MS)"

1

Jia, Weijuan, Jessica McLachlan, Jiayan Xu, Seyed M. Tadayyon, Peter R. Norton, and S. Holger Eichhorn. "Characterization of Au and Pd nanoparticles by high-temperature TGA–MS." Canadian Journal of Chemistry 84, no. 7 (2006): 998–1005. http://dx.doi.org/10.1139/v06-108.

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Noble metal nanoparticles (NPs) prepared by a surfactant-free single-phase solution method have been proposed to contain fewer ionic contaminants than similar NPs prepared by a two-phase method. Reported herein is the possible contamination of Au and Pd NPs, prepared by a surfactant-free single-phase method, with Li2CO3 and other Li salts. High-temperature thermal gravimetric analysis measurements coupled with mass spectrometry (TGA–MS) up to 1100 °C were employed to determine the relative amounts of ionic contaminants since protecting thiolate groups and inorganic contaminants were removed in
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2

Ponkratov, Yu V., V. S. Bochkov, K. K. Samarkhanov, I. S. Karambayeva, and S. K. Askerbekov. "Methodology of Corrosion Testing of Nuclear and Fusion Reactors Materials Using TGA/DSC and MS Complex Techniques." Eurasian Chemico-Technological Journal, no. 1 (February 20, 2019): 35. http://dx.doi.org/10.18321/ectj787.

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The behavior of structural materials of nuclear and fusion reactors during operation largely determines their safe and economical work. Structural materials of nuclear and fusion reactors are operating under conditions of interaction with various chemical active elements (gases, vapor-gas mixtures, fission products, etc.) in a wide temperature range; they are subject to high requirements in terms of their thermal and corrosion resistance. This paper presents the new methodology of complex studies on structural materials corrosion resistance of nuclear and fusion reactors with different gases a
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Juarez-Perez, Emilio J., Zafer Hawash, Sonia R. Raga, Luis K. Ono, and Yabing Qi. "Thermal degradation of CH3NH3PbI3 perovskite into NH3 and CH3I gases observed by coupled thermogravimetry–mass spectrometry analysis." Energy & Environmental Science 9, no. 11 (2016): 3406–10. http://dx.doi.org/10.1039/c6ee02016j.

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Thermal gravimetric and differential thermal analysis (TG-DTA) coupled with quadrupole mass spectrometry (MS) and first principles calculations were employed to elucidate the chemical nature of released gases during the thermal decomposition of CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>.
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Chen, Zhi Qin, Yang Fei Chen, and Hong Bo Liu. "Study on Thermal Degradation of Phenolic Resin." Applied Mechanics and Materials 422 (September 2013): 24–28. http://dx.doi.org/10.4028/www.scientific.net/amm.422.24.

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The thermal degradation of phenolic formaldehyde resins (PF) were studied using thermo gravimetric analysis (TGA). The evolved volatiles during thermal degradation of PF were examined by mass spectrometry (MS). The structure changes of thermal degradation of synthetical phenolic resin (PF1.2) and commercial resin (CPF) were investigated by solid-state 13C nuclear magnetic resonance (13C-NMR) techniques. The experimental results show that the degradation process of PF could be separated into three stages. In the first stage, ether bonds and unreacted terminal hydroxymethyl groups of the cured r
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Zhou, Quan, Dongfang Zheng, Yong Zhao, Ting Wang, Yafeng Yang, and Muhammad Ashraf. "Active constituents of Litsea cubeba." Thermal Science 24, no. 3 Part A (2020): 1745–52. http://dx.doi.org/10.2298/tsci190526047z.

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Litsea cubeba is a plant of Lauraceae and Litsea. It is a valuable plant and has a wide range of uses, including in traditional Chinese medicine. Herein, Litsea cubeba wood was harvested from Henan Province, The active ingredients were extracted from Litsea cubeba wood by modern techniques such as gas chromatography-mass spectrometry (GC-MS), thermal gravimetric analysis, and thermal desorption gas chromatography-mass spectrometry. The analysis results show that the wood of Litsea cubeba contains a large amount of valuable active substances that can be utilized in medicine, bio-energy, and spi
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Maddock, John, Xinchen Kang, Lifei Liu, Buxing Han, Sihai Yang, and Martin Schröder. "The Impact of Structural Defects on Iodine Adsorption in UiO-66." Chemistry 3, no. 2 (2021): 525–31. http://dx.doi.org/10.3390/chemistry3020037.

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Radioactive I2 (iodine) produced as a by-product of nuclear fission poses a risk to public health if released into the environment, and it is thus vital to develop materials that can capture I2 vapour. Materials designed for the capture and storage of I2 must have a high uptake capacity and be stable for long-term storage due the long half-life of 129I. UiO-66 is a highly stable and readily tuneable metal-organic framework (MOF) into which defect sites can be introduced. Here, a defective form of UiO-66 (UiO-66-FA) was synthesised and the presence of missing cluster moieties confirmed using co
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7

YEŞİL, Tolga Acar, Ömer DİLEK, Tahir TİLKİ, and Mustafa YAVUZ. "Synthesis, Characterization and Investigation of Electrical Conductivity of Poly(2-Oxo-2-Phenyl Ethyl -2-Amino Benzoate)/Bentonite Nanocomposite." Süleyman Demirel Üniversitesi Fen Edebiyat Fakültesi Fen Dergisi 17, no. 2 (2022): 568–76. http://dx.doi.org/10.29233/sdufeffd.1148894.

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This study was carried out in two stages. In the first stage; 2-oxo-2-phenylethyl-2-aminobenzoate (OPA) compound, which was an aniline derivative, was synthesized by starting the appropriate components. Then, poly(OPA) was obtained via chemical polymerization of the OPA in the presence of ammonium peroxydisulfate (APS) as the initiator and DMF as the solvent. Poly(OPA)/Bentonite (BNT) nanocomposite was synthesized by effectively dispersing the inorganic nanolayers of BNT in poly(OPA) matrix by means of intercalation method. In the second stage; the characterization of the synthesized OPA, poly
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Kahraman, Wang, von Irmer, Gallei, Hey-Hawkins, and Eren. "Synthesis and Characterization of Phosphorus- and Carborane-Containing Polyoxanorbornene Block Copolymers." Polymers 11, no. 4 (2019): 613. http://dx.doi.org/10.3390/polym11040613.

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Grubbs-catalyzed ring-opening metathesis polymerization (ROMP) of carborane- and phosphonate-containing monomers has been used for the generation of hybrid block copolymers. Molecular weights with Mn of 50,000 g/mol were readily obtained with polydispersity index values, Đ, between 1.03–1.08. Reaction of the phospha ester and carborane substituted oxanorbornene block copolymer with trimethylsilyl bromide led to a new polymer with phosphonic acid functionalities. In application studies, the phospha-carborane functionalized block polymer was tested as heat resistance material. Thermal stability
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Kirilova, Alise, Aleksandrs Pučkins, Sergey Belyakov, and Elena Kirilova. "3-[N-(4-Methoxybenzyl)amino]benzo[de]anthracen-7-one." Molbank 2021, no. 4 (2021): M1287. http://dx.doi.org/10.3390/m1287.

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Herein, we describe the synthesis of 3-[N-(4-methoxybenzyl)amino]benzo[de]anthracen-7-one via a two-step procedure including 3-aminobenzanthrone condensation with anisaldehyde and following reduction of obtained imine to appropriate amine by sodium borohydride. The structure of the synthesized compounds was established by elemental analysis, nuclear magnetic resonance spectroscopy, mass spectrometry (EI-MS), and infrared spectroscopy (FT-IR) and confirmed by single-crystal X-ray diffraction. The title compound was analyzed by thermal gravimetric analysis, UV/vis, and fluorescence spectroscopy.
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10

Liu, Jie, Youxi Zhao, Mengjie Diao, et al. "Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Production by Rhodospirillum rubrum Using a Two-Step Culture Strategy." Journal of Chemistry 2019 (August 4, 2019): 1–8. http://dx.doi.org/10.1155/2019/8369179.

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Polyhydroxyalkanoates (PHAs) are microbially synthesized biopolyesters which have attracted great attentions as a new biological material, potential alternative to traditional fossil fuel-based plastic due to their biodegradability and biocompatibility. Poly-3-hydroxybutyrate (PHB) and poly-(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) are the most common members of PHAs. In this study, the nonsulfur and facultatively phototrophic bacterium Rhodospirillum rubrum was cultivated to accumulate PHA by a two-step culture strategy. Gas chromatography (GC), gas chromatography-mass spectrometry (GC-
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