Article
Thermodynamics
Fa-Ping Liu, Ai-Rong Li, Jie Wang, Ze-Dong Luo
Summary: By studying CO2 hydrate nucleation and growth induced by iron-based ionic liquid, this research found a significant decrease in induction time and an increase in storage capacity. The strengthened hydrogen bonds between the complex anion and water molecules, as well as the formation of large mass transfer channels by the tetrahedral structure, contribute to the promotion of hydrate growth.
Article
Engineering, Chemical
Kui Qiu, Zhihao Liu, Yu Dong, Luwei Liu, Weijun Li, Shihao Niu, Zhaobo Jin
Summary: An iron/copper bimetallic catalytic oxidation desulfurization system was developed by adding NMP and CuCl2 to an iron-based ionic liquid. The addition of NMP and water reduced the acidity and viscosity of the system and improved the gas-liquid mass transfer efficiency. The introduction of CuCl2 increased the oxidation potential and enabled Fe3+ to efficiently catalyze the oxidation of H2S.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jingyi Li, Yilin Yao, Yongsen Shi, Jingchun Tang, Samir Ibrahim Gadow, Rutao Liu, Qigui Niu
Summary: This study investigated the potential toxicity and biochar-dependent detoxification of [Bmim]FeCl4 in microbial communities. The results showed that [Bmim]FeCl4 inhibited methane production and generated more dissolved organic matter. Low concentration of [Bmim]FeCl4 stimulated enzyme activity, while high concentration caused cell damage and increased energy consumption. Furthermore, [Bmim]FeCl4 and biochar were found to be the main drivers for microbial community succession.
Article
Spectroscopy
Nicola Calisi, Stefano Martinuzzi, Andrea Giaccherini, Christian Silvio Pomelli, Lorenzo Guazzelli, Stefano Caporali
Summary: Ionic liquids (ILs) have unique physical and solvation properties that make them ideal candidates for applications in metal-catalyzed reactions. However, a deeper understanding of their surface physical chemistry and chemical composition is crucial to fully exploit their potential in heterogeneous catalysis.
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
(2021)
Article
Energy & Fuels
Qingbo Lu, Jie Gou, Yunchao Wang, Baowei Fan, Yi Zhang, Yu Wang, Evans K. Quaye, Jianfeng Pan
Summary: This study investigates the heterogeneous-homogeneous combustion characteristics of premixed H-2/Air mixture in a micro combustor with 2 mm platinum catalyst segmentation through numerical simulation, revealing distinct regions of heterogeneous and homogeneous reaction at high velocities. The introduction of catalytic surface to induce heterogeneous reaction in the catalytic combustor enhances hydrogen conversion rate.
Article
Food Science & Technology
Julie Boberg, Lea Bredsdorff, Annette Petersen, Nathalie Lobl, Bodil Hamborg Jensen, Anne Marie Vinggaard, Elsa Nielsen
Summary: Researchers have developed fit-for-purpose criteria for grouping of chemicals and a web-based tool for mixture risk assessment, which includes hazard and exposure estimates for over 200 chemicals in foods and environment. The tool can be used to assess mixture risks and to identify main drivers of risk, emphasizing the importance of solid scientific insight for result interpretation.
FOOD AND CHEMICAL TOXICOLOGY
(2021)
Article
Horticulture
Rim Ben Mansour, Hanen Falleh, Nermine Nefzi, Sarra Dakhlaoui, Sawssen Selmi, Majdi Hammami, Lillian Barros, Spyridon A. Petropoulos, Neji Tarchoun, Riadh Ksouri
Summary: This study optimized solvent combinations to obtain refined extracts from squash peels with enhanced antioxidant properties. The extracts exhibited rich phenolic content and significant antimicrobial activities, suggesting their potential use as natural antimicrobial agents.
Article
Geosciences, Multidisciplinary
Xia Li, Peng-Fei Xie, Yong Zheng, Jie Liu, Lie-Jian Wang, Kai-Yuan He, Tao Jiang
Summary: This article presents a new numerical model for studying the dynamic evolution of soil-rock mixture landslides. The model, based on the generalized interpolation material point method, analyzes a simplified slope. It uses a linear elastic model to update stress and an elastic-plastic material model based on the Drucker-Prager criterion for soil and stones. The study investigates the differences in dynamic evolution between homogeneous soil slopes and soil-rock mixture slopes, as well as the influence of stone size and shape on slope dynamics.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Chemistry, Physical
Raul Fuentes-Azcatl, Minerva Gonzalez-Melchor
Summary: A new force field model is proposed in this study for simulating the behavior of the ionic liquid 1-butyl-3-methylimidazolium - bis(trifluoromethylsulfonyl)imide, [Bmim][Nf(2)T]. This force field accurately reproduces the dielectric constant, density, and enthalpy of vaporization of the ionic liquid, with an error rate of less than 3%. Additionally, an investigation of the [Bmim][Nf(2)T]-H2O mixture is conducted, examining various concentrations from pure IL to pure water.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Multidisciplinary
Y. Wei, S. A. Hadigheh
Summary: Chemical pre-treatment of carbon fiber reinforced polymer (CFRP) waste before thermal degradation increases mechanical properties retention and reduces heat consumption during recycling. Recycling with proper pre-treatment preserves up to 90.53% of the strength of the original fibers, which is 10.21% higher than recycling through thermal degradation alone. The hybrid approach developed in this research successfully recycles commercial bike forks and airplane scraps made of CFRP composites, demonstrating the efficacy of the coating removal and chemical pre-treatment on the mechanical characteristics of carbon fibers recovered for real-world applications.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Water Resources
Mohamed Mahmoud Gomaa
Summary: This article explores the electrical properties of synthetic specimens and finds that their response depends on pH and surface charge. Experimental results show variations in electrical parameters within the frequency range of 0.1 to 10(5) Hz. The study also highlights the influence of frequency, concentration, composition, and arrangement on the electrical characteristics.
APPLIED WATER SCIENCE
(2023)
Article
Engineering, Mechanical
Dorien O. Villafranco, Ankush Gupta, Emily M. Ryan, R. Glynn Holt, Sheryl M. Grace
Summary: This study examines two cavitation models and evaluates their accuracy and sensitivity through experiments. Results show that different input parameters have varying effects on cavitation prediction in the models. The assessment also highlights the influence of vapor convection within the method.
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
(2021)
Article
Chemistry, Multidisciplinary
Qianfeng Qiu, Zhenhuan Sun, Danielle Joubran, Xiang Li, Joshua Wan, Klaus Schmidt-Rohr, Grace G. D. Han
Summary: We have addressed the challenge of recovering and recycling homogeneous organocatalysts by designing photoswitchable catalyst structures that can reversibly change their solubility in response to light. Through the use of UV light, these initially insoluble catalysts can be switched to a soluble isomeric state, allowing them to catalyze reactions. Once the reaction is complete, they can be back-isomerized to the insoluble state for filtration and recycling. This concept has the potential to significantly reduce environmental impact and costs by enabling the development of highly recyclable homogeneous catalysts for critical compound synthesis in various industries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Environmental Sciences
Kandethupara Bhaskaran Divya, Srikrishnaperumal Thanga Ramesh, Addagada Lavanya, Rajan Gandhimathi
Summary: In this study, a novel fluidized bed homogeneous crystallization technique was employed to granulate phosphorous as hydroxyapatite, which allows for the formation of high purity crystals without seed addition. Key operational parameters were analyzed to determine their influence on granulation efficiency. The findings provide valuable insights for phosphorous recovery from aqueous solutions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Noritaka Kitamura, Nobuaki Imai, Hiromitsu Haba, Shin'ichiro Michimasa, Susumu Shimoura, Yuki Yamaguchi
Summary: The Hf-178(m2) nuclear isomer provides unique properties for various investigations but creating isomeric target for exotic nuclear reactions faces challenges. A pilot experiment established a method for producing nanogram quantities of the isomer, paving the way for large-scale production at the RIKEN Radioactive Isotope Beam Factory. The produced sample containing 10^11 atoms of Hf-178(m2) demonstrates progress towards future production at RIBF.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
