Article
Chemistry, Multidisciplinary
Rebecca L. Li, Anna Yang, Nathan C. Flanders, Michael T. Yeung, Daylan T. Sheppard, William R. Dichtel
Summary: This study demonstrates that mixtures of monomers with different lengths can generate single-phase, hexagonal 2D COF solid solutions, allowing properties of the COFs to be continuously tuned by changing the monomer composition of a given network.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Chemical
M. H. El-Sadek, M. M. Farahat, H. H. Ali, Z. Zaki
Summary: This study presents a novel synthesis method for SrTiO3 using mechanical activation-assisted solid-state reaction. The mechanical activation enhances the chemical reactivity of SrSO4 and TiO2, enabling the synthesis of SrTiO3 at a high yield. The synthesized SrTiO3 exhibits a small crystallite size and cubic-like particle morphology.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jia Liu, Shi-Hua Sang, Qi Ge, Yang-Xiao Fu, Rui-Zhi Cui
Summary: In this study, the average activity coefficients and interaction parameters of KCl in mixed solutions were investigated by measuring cell potentials. By fitting the Nernst equation and Pitzer model, the activity coefficients, osmotic coefficients, and solubilities of KCl in the mixed solutions were predicted and showed good agreement with experimental results.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Francesca Macedonio, Mirko Frappa, Francesca Alessandro, Enrico Drioli
Summary: In this study, RbCl crystals were obtained through vacuum membrane crystallization. The experiments were conducted using two different membrane materials, polypropylene (PP) and poly (vinylidene fluoride) (PVDF). It was found that good crystals were achieved with the PP membrane, while wetting prevented the formation of RbCl crystals with the PVDF membrane. The success or failure of the membrane crystallization operation is determined by the membrane material in addition to the operating conditions.
Article
Engineering, Chemical
Jaebeom Park, Wooram Lee, Jong Kwon Choe, Yongju Choi
Summary: Various methods for separating and recovering ammonia have been developed, but traditional evaporative crystallization methods have limitations. This study explores the use of solvent-driven fractional crystallization (SDFC) as an alternative technique to improve the purity and usability of recovered ammonia.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Kazuki Kato, Masami Hara, Nobuyoshi Koga
Summary: The physico-geometrical reaction pathway and kinetics of the thermal dehydration of d-glucose monohydrate (DG-MH) are significantly influenced by the melting of the reactant. By controlling the reaction conditions, three different reaction modes were observed: solid-state reaction, switching from a solid- to liquid-state reaction, and liquid-state reaction. The reaction pathway and kinetics of the thermal dehydration of DG-MH vary depending on the sample and reaction conditions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Megan E. Fleming, Daniel E. Hooks, Michael McBride, Nan Li, Jennifer A. Swift
Summary: Nanoindentation with a conospherical tip on the (100) face of cytosine monohydrate (CM) showed a highly anisotropic response due to the pro-chiral structure of the surface. Low rugosity slip planes induced movement of pi-stacks instead of their displacement along the hydrogen bonded ribbon direction. The anisotropic deformation supports a ribbon-rotation model and highlights the relationship between mechanical properties and solid state dehydration mechanism of hydrates.
Article
Energy & Fuels
Yue Zhao, Zhaoyi Dai, Chong Dai, Samridhdi Paudyal, Xin Wang, Saebom Ko, Amy T. Kan, Mason Tomson
Summary: The study investigates the formation and inhibition of celestite scale, develops a semiempirical model based on experimental and literature data, and predicts the minimum inhibitor concentration required for celestite scale control.
Article
Construction & Building Technology
Bo Ran, Othman Omikrine-Metalssi, Teddy Fen-Chong, Patrick Dangla, Kefei Li
Summary: This study investigates the pore crystallization and material expansion of cement paste under external sulfate attack with and without chlorides. It is found that chlorides decrease the AFt formation rate and expansion capacity by depressing the supersaturation of AFt crystals; AFt crystallization alters the pore structure in the whole pore size range, especially by blocking ink-bottle pores in the micropore range; AFt crystals change the apparent vapor diffusivity through pore-filling and microcracking, and the linear stage of expansion is well explained by poromechanics with pore crystallization pressure incorporated.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Materials Science, Ceramics
Yuqiao Zhang, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Yao-Hua Zhuang, Bin Feng, Yu-Miin Sheu, Woosuck Shin, Woo Seok Choi, Myung Joon Han, Yuichi Ikuhara, Hiromichi Ohta
Summary: The study shows that the thermal conductivity of electron-doped SrTiO3 is lower than assumed, with the highest ZT exceeding 0.1 at room temperature. The impact of carrier concentration on thermal conductivity varies in different solid solutions, providing insights for the future design of electron-doped SrTiO3-based thermoelectric materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Geochemistry & Geophysics
Bhavani Benard, Vincent Famin, Bernard Sanjuan, Francoise Vimeux, Bertrand Aunay, Pierre Agrinier, Genevieve Lebeau
Summary: We would like to express our gratitude to Stefan Finsterle and Nicolas Spycher for their guidance on using the iGeoT program, and to Jonas Greve and Victor K/Bidi for their involvement in the fieldwork. Special thanks to the Etablissement thermal de Cilaos for granting us access to their facilities and resources. The research was supported by various grants from INSU-CNRS, OSU-Re'union, BRGM, EDENA, IPGP, and Paris-IdF region SESAME (Grant no. 12015908).
APPLIED GEOCHEMISTRY
(2023)
Article
Engineering, Chemical
Vico Tenberg, Masoud Sadeghi, Andreas Seidel-Morgenstern, Heike Lorenz
Summary: This paper introduces a new hybrid process of evaporation and antisolvent crystallization for the separation of L-valine and L-leucine solid solutions. By quantifying the changes in solubilities and composition, the concept is validated and further understanding of the process is achieved using Powder X-Ray Diffraction, ternary and Roozeboom diagrams.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Masoud Sadeghi, Vico Tenberg, Stephan Munzberg, Heike Lorenz, Andreas Seidel-Morgenstern
Summary: This study measured and theoretically modeled the ternary phase diagram of t-valine and leucine in water, showing the formation of solid solutions between L-valine and L-leucine. Different models were used to describe the solubility curve, with a graphical separation method based on the Lippmann plot proposed for potential use in separating organic compounds forming solid solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Ceramics
Agnieszka Wilk, Kamil Wojteczko, Marta Gajewska, Radoslaw Lach, Piotr Jelen, Maciej Sitarz, Krzysztof Haberko, Zbigniew Pedzich
Summary: Zirconia and zirconia-yttria solid solution powders were successfully precipitated and crystallized under hydrothermal conditions. The morphology and phase composition of the obtained powders were found to be strongly influenced by the Y2O3 concentration, with low Y2O3 content leading to elongated particles and high Y2O3 content resulting in isometric particles.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
V. B. Shirokov, A. G. Razumnaya, A. S. Mikheykin
Summary: The thermodynamic potential of PbxSr1-xTiO3 solid solutions has been determined for the entire range of component concentrations, and a phase diagram was constructed to reveal the possibility of ferroelectric phases that were not previously observed in experiments.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
