News Item
Chemistry, Multidisciplinary
Karoline T. Neumann, Troels Skrydstrup
Summary: The direct carbon isotope exchange reaction on alpha-amino acids is highly desirable as it allows for the direct formation of C-11, C-13, and C-14-labelled alpha-amino acids. This new method involving aldehyde-catalysed carboxylate exchange with isotopically labelled *CO2 bypasses the need for multiple synthetic steps and harsh conditions.
Article
Chemistry, Multidisciplinary
Quynh Thi Ngoc Le, Eleazer L. Vivas, Kuk Cho
Summary: This study converted an original blast-furnace slag, an industrial waste material, into Slag-Oxalate to capture Co2+. The obtained material showed a high adsorption capacity and fast adsorption rate, with ion exchange being the main mechanism. Additionally, Slag-Ox was able to remove Cs+ and Sr2+ ions from multi-metal aqueous solutions, indicating its potential for remediating contaminated waters.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Geochemistry & Geophysics
Andrew C. Turner, Nicholas J. Pester, Markus Bill, Mark E. Conrad, Kevin G. Knauss
Summary: The hydrogen isotopic composition of methane can serve as an indicator of gas origins. This study presents experimental constraints on the kinetics of hydrogen isotope exchange between methane and supercritical water, showing that exchange rates vary with temperature and suggesting the influence of life activity and thermogenic natural gas systems. The findings have implications for understanding the signatures of methane and water on Earth and other planetary bodies.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Ekaterina Sadovskaya, Larisa Pinaeva, Valerii Skazka, Igor Prosvirin
Summary: The performance of MeOx/CeO2 (Me = Fe, Co, Ni) samples in O-18(2) temperature-programmed isotope exchange and N2O decomposition (deN(2)O) was examined. The rate of deN(2)O decreased in the presence of oxygen, suggesting the competitive adsorption of N2O and O-2 on the same sites. Dissociative oxygen adsorption with the subsequent formation of surface oxygen species was observed during isotope oxygen exchange. The same species were likely formed from N2O adsorption and subsequent N-2 evolution to the gas phase.
Review
Chemistry, Multidisciplinary
Alexandre Labiche, Augustin Malandain, Maxime Molins, Frederic Taran, Davide Audisio
Summary: In contrast to stable and natural abundant carbon-12, the synthesis of organic molecules with carbon (radio) isotopes requires careful planning and optimization due to the challenges of radiochemical requirements. Recently, carbon isotope exchange technologies have emerged as effective methods for late-stage labeling, utilizing primary radiolabeled building blocks and various activation processes. This review provides a brief overview of these technologies and their potential impact on radiosynthesis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Mohammadreza Khalesi, Richard J. FitzGerald
Summary: The study investigated the impact of calcium level in milk protein concentrate (MPC80) on its interaction with the aqueous phase, and produced MPC80 ingredients with varying calcium levels. The different calcium levels resulted in MPC with different functional properties and solubility.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
Sergey Osipenko, Anton Bashilov, Anna Vishnevskaya, Lidiia Rumiantseva, Anna Levashova, Anna Kovalenko, Boris Tupertsev, Albert Kireev, Eugene Nikolaev, Yury Kostyukevich
Summary: Mass spectrometry is a crucial technique for studying the metabolic pathways of living organisms. High-resolution mass spectrometry allows for untargeted metabolomics studies, even for multiple compounds labeled simultaneously. We demonstrated the capabilities of high-resolution mass spectrometry in studying the metabolism of a model plant, and showed the usefulness of in vivo labeling with heavy water and tandem mass spectrometry.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Greg J. Ledingham, Weiyi Pan, Daniel E. Giammar, Jeffrey G. Catalano
Summary: The dynamics of Pb(II) at mineral surfaces affect its mobility in the environment. It has been found that most of the adsorbed lead on metal oxide surfaces is exchangeable, but the exchange rate is influenced by pH and diffusion.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Shixin Gao, Zhengang Duan, Yingwei Wu, Yi Zhou, Ping Chen, Hongtao Huang, Yang Liu, Rong Liu, Shengyu Liu, Chunyu Yin, Hongbu Yin
Summary: FeCrAl alloys as ATF claddings have superior oxidation resistance but higher tritium permeability compared to zirconium-based claddings. The transport of deuterium in FeCrAl alloys was investigated and measured. The diffusion rate significantly affects the time to reach steady state. FeCrAl fuel rods would experience a considerable tritium flux release rate due to high diffusivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Wendong Lv, Haotian Ye, Hong Liu, Hongguang Dong
Summary: In this paper, an integration process is established to achieve the full utilization of the D isotope. An improved H2O-H2S dual-temperature isotope exchange system (IGS) is developed to transfer the D isotope obtained from the hot section to the cold section. The D isotope enrichment process can be changed from factory scale to lab scale.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Yangjun Chen, Min Chen, Jinxu Chen, Lingfang Fan, Mingfang Zheng, Yusheng Qiu
Summary: This study investigates the nitrogen and oxygen isotopic composition of nitrite in the Amundsen Sea and explores the biogeochemical processes that affect the nitrite cycle.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Rana Choumane, Victor Carpentier, Gregory Lefevre
Summary: When using Mg-Fe based LDH as a carrier for extracting Ta(v), the adsorption capacity of tantalum significantly increases after carbonation or calcination pre-treatment. Furthermore, it was found that the main enrichment mechanism of Ta(v) in LDH involves a combination of adsorption and precipitation with magnesium ions.
Article
Nuclear Science & Technology
V. S. Moseeva, A. N. Bukin, M. B. Rozenkevich, A. S. Anikin, N. E. Zabirova
Summary: Various methods for synthesizing hydrophobic catalysts with controlled platinum distribution by adding reagents (hydrochloric or oxalic acid) in the mother liquor have been investigated. The hydrophobization of the catalyst granule outer surface is crucial, while the presence of a hydrophilic surface inside the granule can enhance its catalytic activity.
FUSION ENGINEERING AND DESIGN
(2021)
Article
Nuclear Science & Technology
Tatsuya Suzuki, Minghui Zhang, Masao Nomura, Takehiko Tsukahara, Masahiro Tanaka
Summary: The study focused on lithium isotope separation using ion exchange chromatography for engineering development, conducting experiments to estimate migration lengths needed for different levels of lithium-6 enrichment. Detection methods for lithium adsorption band boundaries were examined to design circular chromatographic equipment for industrial use, resulting in the design and manufacture of an automatic circular chromatographic equipment prototype with a boundary interface detector.
FUSION ENGINEERING AND DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Fangjun Shao, Fandong Ma, Yuanan Li, Wenjie Jiang, Zhongzhe Wei, Xing Zhong, Hong Wang, Ligeng Wang, Jianguo Wang
Summary: In this study, the synthesis of deuterium-labeled compounds using Ru/MnBCD as a catalyst was investigated. The results showed that the catalyst was able to achieve a high deuterated ratio of 97% through thermo- and electrocatalytic hydrogen isotope exchange reactions, indicating the potential of this catalytic technology for the synthesis of various deuterium-labeled compounds.
Article
Chemistry, Physical
Adrien Stoliaroff, Stephane Jobic, Camille Latouche
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Materials Science, Multidisciplinary
Valentin Jolivet, Yann Morizet, Michael Paris, Tomo Suzuki-Muresan
JOURNAL OF NUCLEAR MATERIALS
(2020)
Editorial Material
Chemistry, Physical
Myung-Hwan Whangbo, Masahiko Isobe, Florian Massuyeau, Heprimelene Serier-Brault, Hyun-Joo Koo, Romain Gautier, Steprimephane Jobic
CHEMISTRY OF MATERIALS
(2020)
Article
Multidisciplinary Sciences
Palas Baran Pati, Ruwen Wang, Etienne Boutin, Stephane Diring, Stephane Jobic, Nicolas Barreau, Fabrice Odobel, Marc Robert
NATURE COMMUNICATIONS
(2020)
Article
Materials Science, Multidisciplinary
Romain Genois, Stephane Jobic, Guy Ouvrard, Florian Massuyeau, Romain Gautier
APPLIED MATERIALS TODAY
(2020)
Article
Materials Science, Ceramics
Valentin Jolivet, Yann Morizet, Jonathan Hamon, Michael Paris, Tomo Suzuki-Muresan
Summary: The glass transition temperature (T-g) was investigated for borosilicate glasses used in nuclear waste immobilization with different levels of iodine (I) added. The results showed that the addition of I decreased T-g, with a stronger effect observed in ISG compared to NH glass compositions. The difference in T-g decrease was attributed to the dissolution mechanism of I and its impact on the boron network polymerization.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
W. Zouari, T. Suzuki-Muresan, T. Kobayashi, S. Utsunomiya, A. Abdelouas, B. Grambow
Summary: This study utilized nanoparticles zirconia to improve the stability measurements in aqueous environments, and compared two different crystal structures. Experimental data on the solubility of zirconium dioxide in solution were obtained, along with the assessment of morphology and surface changes using high-resolution techniques.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Geochemistry & Geophysics
Johan Vandenborre, Laurent Truche, Amaury Costagliola, Emeline Craff, Guillaume Blain, Veronique Baty, Ferid Haddad, Massoud Fattahi
Summary: The study investigates the production/degradation of low molecular weight carboxylate anions through irradiation experiments on carbonate solutions. It is found that radiolysis of carbonate can generate carboxylate species, chiefly oxalate, which may support subsurface microbial ecosystems. The research highlights the potential significance of carbonate radiolysis in providing energy sources for microbial life.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Brandon Perrin, Laurent Venault, Emilie Broussard, Johan Vandenborre, Guillaume Blain, Massoud Fattahi, Sergey Nikitenko
Summary: The study of radiolytic products formation is crucial in the reprocessing of spent nuclear fuel and the storage of radioactive aqueous solutions. Experimental investigations have shown that the yields of radiolytic products depend on the nitric acid concentration and the oxidation state of plutonium. Molecular hydrogen production decreases with increasing nitric acid concentration, while nitrous acid and nitrous oxide productions increase. This study provides insight into the role played by plutonium redox behavior in the formation of radiolytic products.
Article
Biology
Guillaume Blain, Johan Vandenborre, Daphnee Villoing, Vincent Fiegel, Giovanna Rosa Fois, Ferid Haddad, Charbel Koumeir, Lydia Maigne, Vincent Metivier, Freddy Poirier, Vincent Potiron, Stephane Supiot, Noel Servagent, Gregory Delpon, Sophie Chiavassa
Summary: During ultra-high dose rate external radiation therapy, the production of hydrogen peroxide (H2O2) can be controlled by early heterogenous radiolysis processes, thus sparing healthy tissues while maintaining tumor control. This study provides experimental evidence for this phenomenon during UHDR proton-beam irradiations.
RADIATION RESEARCH
(2022)
Article
Chemistry, Physical
Mohammad Ghalei, Parastoo Mahdi Khoshouei, Johan Vandenborre, Francois Guerard, Guillaume Blain, Mojtaba Zarei, Ferid Haddad, Massoud Fattahi
Summary: This study investigates the impact of chloroform radiolysis on astatine (At) chemistry, particularly in the production of At-211 radiopharmaceuticals. Two experiments were conducted to measure pH values and predict the acidic conditions for At-211 production. The findings provide insights into the impurity generation mechanism caused by At radiolysis in chloroform, enabling the identification of solutions to counteract these unwanted effects.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Haohan Zhang, Tomo Suzuki-Muresan, Stephane Gin, Guillaume Blain, Thierry Sauvage, Olivier Wendling, Johan Vandenborre, Abdesselam Abdelouas
Summary: During the long-term disposal of high-level nuclear waste glass, it may be exposed to a vapor environment before contacting groundwater. The glass also experiences damage from self-irradiation. This study investigates the chemical durability of glass after hydration and irradiation, with a focus on the impact of ionizing effect. Results show that irradiation does not significantly modify chemical durability, but pre-hydrated glass exhibits an increase in the initial release of Si, possibly due to the dissolution of secondary phases. The total dissolution of the hydrated layer is observed, requiring further investigation into the release of radionuclides.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Physical
Yann Morizet, Jonathan Hamon, Carole La, Valentin Jolivet, Tomo Suzuki-Muresan, Michael Paris
Summary: This study explores the use of high-pressure synthesis to enhance the solubility of I in aluminoborosilicate glasses, providing a potential solution for the immobilization of I-129 in nuclear waste. The research demonstrates that high-pressure conditions significantly increase the I solubility in glasses, particularly in Na-rich compositions, and oxidized I waste form should be utilized to further improve I solubility.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Denys Grekov, Tomo Suzuki-Muresan, Andrey G. Kalinichev, Pascaline Pre, Bernd Grambow
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Adrien Stoliaroff, Alicia Lecomte, Oleg Rubel, Stephane Jobic, XiangHua Zhang, Camille Latouche, Xavier Rocquefelte
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Thermodynamics
J. N. Zappey, E. E. Moore, O. Benes, J. -c. Griveau, R. J. M. Konings
Summary: In this study, the heat properties of technetium metal were measured and analyzed using various thermal measurement methods, including its superconductivity, zero-degree Debye temperature, electronic heat capacity coefficient, and the standard entropy of the superconducting state.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Pengshuai Zhang, Jixiu Deng, Xiaoyu Jiang, Liang Xu, Yu Huang, Han Sun, Mi Gao, Xianghan Wang, Yulong Gao, Kangning Fan, Lu Zhang, Shuoye Yang
Summary: In this study, the solubility of daminozide in twelve neat solvents was determined using the gravimetrical method. Various models were employed to analyze the experimental solubility, and the miscibility of daminozide in the selected solvents was discussed based on Hansen solubility parameters. The results showed that the dissolution mechanism of daminozide in all solvents was entropy-driven.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Jinju Ma, Hao Wu, Dongxu Yi, Wei Liu, Xinding Yao, Tao Li, Baozeng Ren
Summary: In this study, the solubility and compatibility of Agomelatine in different solvents were investigated through experimental and simulation methods. The results showed that Agomelatine forms more stable hydrogen bonds with alcohol solvents compared to other ester solvents. Additionally, the study analyzed the acidity and basicity characteristics of Agomelatine as well as the reasons for differences in solubility.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Angelica V. Sharapova, Marina V. Ol'khovich, Svetlana V. Blokhina
Summary: This study determined the key physico-chemical properties of cardiovascular carvedilol (CVD) in terms of solubility and distribution coefficients in modeling solvents and biphasic systems. The results showed that the solubility of CVD varied significantly depending on the solvent and pH conditions, and the dissolution process deviated from ideality in saturated solutions.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Wenxi Song, Na Wang, Mingzhe Tan, Meng Wang, Xin Huang, Ting Wang, Hongxun Hao
Summary: The solubility and thermodynamic behavior of climbazole in different solvents were investigated in this study. The results showed that solubility is influenced by temperature and solvent properties. Furthermore, the solvent effect was evaluated and the molecular mechanism behind the solubility behavior was revealed using solvation energy relationship models and molecular simulation methods.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Yuqi Su, Weijie Jia, Junshuai Chen, Songtao Cao, Maogang He, Ying Zhang
Summary: This paper presents a novel measurement method based on the finite volume method (FVM) for measuring the concentration-dependent mutual diffusion coefficient D(C) in binary solution. The measurement principle was derived by integrating Fick's second law and establishing discretization equation. The method was validated through experiments and a semi-empirical correlation was built to study the temperature and concentration influences on the diffusion coefficient D.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Bo Tang, Xiaoyu Yao, Xueqiang Dong, Bowen Sheng, Yanxing Zhao, Jun Shen, Maoqiong Gong
Summary: In this study, metal-bellows variable volumetry was used to measure the saturated vapor pressures and critical parameters of R1234ze(Z) and R1336mzz(Z). New vapor pressure correlations were formulated based on the obtained data. The low uncertainties of the measured values indicate the reliability and reproducibility of the data. The results provide important thermophysical data for the use and optimization of R1234ze(Z) and R1336mzz(Z) in HTHP systems.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Vivek Pathania, Ankita Garg, Navneet Kaur, Neha
Summary: The interaction between Isoniazid and beta-cyclodextrin in solutions was investigated to understand the molecular interactions between different components. The results showed that the interaction between Isoniazid and beta-cyclodextrin affected the volume and compressibility of the solutions, and the hydration behavior of Isoniazid in the solutions was influenced by the cosolvent.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Mauricio Vega-Teijido, Marc E. Segovia, Martina Kieninger, Oscar N. Ventura
Summary: A composite chemical model, SVECV-f12, has been developed to accurately reproduce barrier heights of hydrocarbon species. The model successfully corrects systematic errors between experimental and theoretical values and is used for predicting formation enthalpies and hydrogenation/isomerization enthalpies.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Kemal Ozcan, Aylin Boztepe, Erdog an Tarcan, Cagatay Tasdemirci
Summary: In this study, the enthalpy of combustion of methane, the main component of natural gas, was measured using a reference gas calorimeter. The experimental results were compared with the values specified in ISO 6976:2016. The average enthalpy of combustion was determined as -55518.2 kJ kg-1 with an error of 0.2%.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Kouki Mekaru, Takuto Miyagi, Ayaka Mishima, Isami Uehara, Ryo Ohmura, Keita Yasuda
Summary: This study investigated the four-phase equilibrium conditions of carbon dioxide + cyclopentane double clathrate hydrate forming systems coexisting with sodium chloride aqueous solution or pure water. The results showed that the double clathrate hydrate is more thermodynamically stable than simple clathrate hydrates under a given sodium chloride concentration.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Yameng Wan, Xiaoqiang Gao, Ruiai Wang, Fanfan Li, Yanxun Li, Haixia He
Summary: This study evaluated the solubility of Iminostilbene (IMB) in twelve organic solvents and found that the solubility increased with temperature and showed a specific order in different solvents. The analysis of molecular interactions and solubility parameters provided insights into the dissolution behavior. The UNIQUAC model was used to fit the solubility data, and the thermodynamic properties of the mixing and dissolution processes were thoroughly evaluated.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Yinan Liu, Mingcheng Li, Chunying Zhu, Xiqun Gao, Youguang Ma
Summary: This study successfully prepared amine-based functionalized deep eutectic solvents and investigated the effects of solvent composition, water content, and temperature on the properties of the solvent through density and viscosity measurements. The results contribute to a better understanding of hydration and intermolecular interactions in deep eutectic solvents.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Correction
Thermodynamics
Deepak Parmar, Kavitha Kumari, Naveen Kumar, Manju Rani, Mustapha Sahal, Sanjeev Maken
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Ruslan N. Nagrimanov, Aliya R. Ibragimova, Boris N. Solomonov
Summary: In this study, the heats of solution of hydrocarbons and alcohols with 2-methyltetrahydrofuran are systematically analyzed. Structure-property relationships are developed to calculate the enthalpy of solvation of aliphatic alcohols in 2-methyltetrahydrofuran. Specific interactions in the alcohol-2-methyltetrahydrofuran systems are determined to better understand intermolecular interactions in 2-methyltetrahydrofuran solutions. This research provides valuable insights into the properties and energies of these interactions, facilitating the transition to more environmentally friendly solvents.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
