Article
Metallurgy & Metallurgical Engineering
Adrian Carrillo Garcia, Mohammad Latifi, Jamal Chaouki
Summary: The study investigated the calcination process of a rare earth carbonatite ore from Niobec in Quebec, Canada, focusing on the decomposition of bastnasite and monazite. A global kinetic model was developed to represent the calcination kinetics of the whole ore based on individual calcination kinetics of the minerals nested in the ore. Initially developed for small particles, the model was later adapted to larger particle sizes by including coefficients based on physical particle size parameters.
Article
Metallurgy & Metallurgical Engineering
George Blankson Abaka-Wood, Jonas Addai-Mensah, William Skinner
Summary: The study characterized tailings from a copper processing plant and found that they are rich in rare earth elements, with over 90% recovery achieved through froth flotation. With systematic optimization studies, further enhancement of rare earth element recovery and upgrade efficiency is possible.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2022)
Article
Geology
Cristina Villanova-de-Benavent, Joaquin A. Proenza, Lisard Torro, Thomas Aiglsperger, Cristina Domenech, Diego Dominguez-Carretero, Xavier Llovet, Pol Suner, Australia Ramirez, Jesus Rodriguez
Summary: Karst bauxites from the Pedernales Peninsula in the Dominican Republic have great potential as non-conventional sources of rare earth elements (REE). This study focused on two bauxite deposits, Aceitillar and El Turco, which have contrasting REE contents and mineralogy. The characterisation of REE mineralisation was performed using various analytical techniques, providing insights into the formation of REE minerals in the supergene environment and their application in REE separation methods.
ORE GEOLOGY REVIEWS
(2023)
Article
Metallurgy & Metallurgical Engineering
Xu Wu, Yiwen Hu, Sultan Ahmed Khoso, Zhao Cao
Summary: A new collector mixture of octyl hydroxamic acid (OHA) and octyl phenol ethoxylation (OP10) was proposed to improve the flotation of bastnaesite, which is a major issue in the rare earth ore flotation industry. Experimental and analytical tests revealed that the OHA/OP10 combination significantly enhanced the recovery of fine-grained bastnaesite and promoted its aggregation. The co-adsorption of OHA and OP10 on the surface of bastnaesite was confirmed by zeta potential, fluorescence spectrum, and XPS analysis.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2023)
Article
Chemistry, Analytical
Sh. M. Abdo, M. S. Hagag, A. H. Ali, F. H. Salem, G. A. Dakroury
Summary: A synthetic BaSO4 & BULL;CaSO4 composite was prepared by co-precipitation technique and characterized for REE sorption. The optimal sorption parameters were found to be pH = 4, equilibrium time = 20 min, temperature = 303 K, and REE liquor volume to composite mass ratio of 0.2:1 L g(-1). The sorption capacity of the composite was determined to be 168.63 mg g(-1) according to the pseudo 2nd order kinetic mechanism and Langmuir adsorption isotherm. 90.14% of REE (III) could be desorbed using 1 mol L-1 HNO3. The natural ingredient 1:1 barite-gypsum with a loading capacity of 136 mg g(-1) was used for REEs extraction.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Crystallography
Jennifer Anders, Henrik Wiedenhaupt, Beate Paulus
Summary: This study investigates the difference in adsorption affinity between yttrium fluoride and holmium fluoride on different crystal surfaces. It is found that the adsorption of fluoride ions is stronger than that of chloride ions on stoichiometric surfaces of both compounds, while the adsorption preference for water molecules varies with the surface configuration.
Article
Chemistry, Inorganic & Nuclear
Galina A. Gurina, Alexey V. Markin, Anton V. Cherkasov, Ivan A. Godovikov, Anatoly M. Ob'edkov, Alexander A. Trifonov
Summary: Bis(phenolate) ligands containing benzimidazole-2-ylidene and tetrahydropyrimidine-2-ylidene linkers were used to synthesize isolable Sc3+ chloro and alkyl complexes. The chloro complexes (LScCl)-Sc-1,2(solv)(2) were obtained from the reaction of Sc(CH2SiMe3)(3)(THF)(2) with [(LH3)-H-1,2]Cl or by the salt metathesis reactions of ScCl3 with [L-1,L-2]Na-2. The alkyl derivative [(LSc)-Sc-2(CH2SiMe3)](2) was prepared through the alkylation reaction of (LScCl)-Sc-2(THF)(2) with LiCH2SiMe3 or by subsequent reactions of [(LH3)-H-2]Cl with NaN(SiMe3)(2) and Sc(CH2SiMe3)(3)(THF)(2).
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Engineering, Environmental
A. H. Ali, G. A. Dakroury, M. S. Hagag, Sh M. Abdo, K. F. Allan
Summary: In this study, a novel composite P(AA-co-AM/PJM-T) was synthesized by copolymerizing acrylic acid, acrylamide, and 16,16-dimethylheptadecan-1-amine using gamma irradiation. The composite was characterized and utilized as a sorbent for rare earth elements from monazite. The sorption process was found to be spontaneous, with a maximum adsorption capacity of 182.15 ± 3.73 mg g(-1) at 25 degrees Celsius.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Metallurgy & Metallurgical Engineering
Deniz Talan, Qingqing Huang, Liang Liang, Xueyan Song
Summary: This study aims to remove thorium and uranium from rare earths using coal-based materials, and selective precipitation and solvent extraction were found to yield the most favorable separation performance. Optimal conditions were determined through experimental analysis, and a model was developed to predict uranium recovery. The findings provide valuable references for rare earth extraction and environmental control.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2023)
Article
Chemistry, Multidisciplinary
An-Min Song, Fu-Di Zhang, Qing-Hua Hu, Ru-Ping Liang, Li-Hong Li, Wan-Wan Zhao, Jian-Zhen Liao, Hua Ke, Jian-Ding Qiu
Summary: This article proposes a strategy to recover low-concentration lanthanides by constructing metal-organic frameworks and explores the effects of functional-group types and framework soft basicity on their adsorption performance. The results show that Cd-PDI-2D exhibits super-high adsorption capacity and selectivity, making it suitable for lanthanide recovery from rare-earth tailings.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Engineering, Chemical
Jessica L. Hovey, Mohammed Dardona, Matthew J. Allen, Timothy M. Dittrich
Summary: The research team developed a solid-phase media for recovering rare-earth elements, demonstrating pH-dependent binding of aqueous rare-earth elements and efficiency over multiple cycles. Mixed solutions showed a preference for mid and heavy rare-earth elements, with selectivity for rare-earth elements over iron and aluminum observed in coal fly ash leachate.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Geochemistry & Geophysics
Yasumasa Ogawa, Daizo Ishiyama, Stefan Dordievski, Jelena Petrovic, Marija Milivojevic, Bernhardt Saini-Eidukat, Scott A. Wood
Summary: The behavior and fractionation mechanisms of rare earth elements and actinides during the neutralization processes of acidic thermal water from the Kusatsu geothermal area in Gunma Prefecture, Japan have been investigated. As pH increases, these elements are mainly removed by sorption and/or precipitation, with dissolved Th almost completely removed while REEs and U remaining as dissolved species. Fractionation of REEs, including Y, is strongly pH-dependent, with heavier REEs tending to be removed by sorption onto suspended materials as pH increases.
Article
Chemistry, Physical
Julia Neumann, Sang Soo Lee, Hannes Brinkmann, Peter J. Eng, Joanne E. Stubbs, Thorsten Stumpf, Moritz Schmidt
Summary: Metal ions' environmental fate is influenced by interactions with natural ligands. Sulfate concentration affects the retention of f-element cations by muscovite, leading to overcompensation initially and then a decrease in coverage due to the dominance of sulfate species in solution. Understanding these interactions is crucial for predicting contaminant transport in the environment.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Metallurgy & Metallurgical Engineering
A. V. Valkov, V. Petrov
Summary: The extraction technology for the separation of rare-earth elements, particularly those of the yttrium group, faces sharp reductions in price due to changes in market demand. This has led to less demanded elements being stored or sold at low prices, while high-tech elements continue to be used in various devices and instruments. This allows for low-profit production, but requires technological solutions that minimize costs and maximize economic efficiency.
RUSSIAN JOURNAL OF NON-FERROUS METALS
(2022)
Article
Chemistry, Inorganic & Nuclear
A. N. Turanov, V. K. Karandashev, V. A. Khvostikov, K. V. Tcarkova, E. V. Sharova, O. I. Artyushin, N. A. Bondarenko
Summary: The extraction ability of modified phosphoryl-containing diglycolamides towards U(VI), Th(IV), and REE(III) ions in organic solvents from nitric acid solutions has been studied. The study considers the dependence of extraction efficiency on extractant structure, solvent nature, composition of organic and aqueous media, and the stoichiometry of recovered complexes. It has been found that the studied diglycolamides, which contain acceptor P=O groups in the amide fragments of the molecule, extract U(VI) more efficiently but Th(IV) and REE(III) less efficiently compared to the known extractant tetraoctyldiglycolamide.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Emily T. Nienhuis, Maxime Pouvreau, Trent R. Graham, Micah P. Prange, Katharine Page, John S. Loring, Andrew G. Stack, Aurora E. Clark, Gregory K. Schenter, Kevin M. Rosso, Carolyn I. Pearce, Hsiu-Wen Wang
Summary: The impact of ion speciation and local structure on the precipitation of aluminum hydroxide has been investigated in sodium aluminate solutions. The study reveals a mixture of monomeric and dimeric aluminate species, with the dimeric species increasing in solutions that avoid precipitation for extended periods of time. The conversion between these species is driven by hydrogen/deuterium bonding and proton/deuteron transfer reactions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
E. Nakouzi, S. Kerisit, B. A. Legg, S. Yadav, D. Li, A. G. Stack, C. J. Mundy, J. Chun, G. K. Schenter, J. J. De Yoreo
Summary: Solid-liquid interfaces play a crucial role in various phenomena such as colloidal aggregation, crystallization, catalysis, nucleation, water desalination, and biomolecular assembly. This study investigates the influence of hydrophilic and hydrophobic probes on interfacial solution structure using three-dimensional atomic force microscopy (3D AFM). The results show that hydrophilic probes exhibit good agreement with molecular dynamics simulations, while hydrophobic probes detect vertical oscillatory features without matching the underlying lattice. It is also found that the repulsive hydration force between the probe and mica depends on the nature and concentration of ions in the solution. Based on these findings, a scheme for controlling particle aggregation and attachment outcomes by tuning hydration force is proposed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Uvinduni I. Premadasa, Dengpan Dong, Diana Stamberga, Radu Custelcean, Santanu Roy, Ying-Zhong Ma, Vera Bocharova, Vyacheslav S. Bryantsev, Benjamin Doughty
Summary: The interfacial behavior of amino acid solvents used in direct air capture (DAC) plays a crucial role in the absorption and capture of CO2, suggesting the potential for developing new DAC approaches to address climate change.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Nathan P. Bessen, Alexander S. Ivanov, Diana Stamberga, Vyacheslav S. Bryantsev, Bruce A. Moyer
Summary: Guanidine functional groups are often unstable due to hydrolysis, but by synthesizing guanidines with sterically bulky alkyl substituents and testing their stabilities, researchers have found that the branching of the alkyl group can increase the stability. This research is important for the development of the next-generation caustic-side solvent extraction (NG-CSSX) process for removing radioactive cesium from complex alkaline solutions. The most hydrolysis-resistant guanidine molecule, N,N '-dicyclohexyl-N''-(10-nonadecyl)guanidine (DCNDG), was found to have a stability 8 to 44 times greater than that of the currently used compound (TiDG) under different process conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Amanda Dorfman, Anna Wanhala, Peter Eng, Joanne Stubbs, Omar Colon, Malik Donetian, Jacquelyn N. Bracco
Summary: Understanding the sorption behavior of ions at the mineral-water interface is crucial for determining the fate of elements in the environment. This study used barite to investigate the interactions between metals, organic molecules, and ionic crystals. The results showed that the presence of ethylenediaminetetraacetic acid (EDTA) disrupted the barite surface structure and inhibited strontium (Sr) incorporation into the surface. EDTA also formed complexes with Sr in solution, limiting the amount of Sr2+ in solution. When desorbed, approximately 75% of the sorbed strontium was removed, suggesting that changes following Sr sorption in the presence of EDTA may be irreversible.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Instruments & Instrumentation
Ke Yuan, Vitalii Starchenko, Nikhil Rampal, Fengchang Yang, Xianghui Xiao, Andrew G. Stack
Summary: The nucleation and growth of minerals have significant implications in various fields such as geology, environmental science, and materials science. By utilizing fast X-ray nanotomography, researchers have achieved high-resolution imaging of crystal growth in solutions, surpassing the capabilities of optical microscopy. In this study, a custom-designed aqueous flow cell was presented for investigating the effects of radiation damage on the growth reactions of barite crystals. The results showed that increasing the tomography scan frequency resulted in the dissolution of crystals, likely due to X-ray induced water radiolysis and pH decrease near the crystal surface. The flow cell demonstrated the potential to study a wide range of chemical reactions in solutions, beyond crystal nucleation and growth, by mitigating the radiation effects through fast flow and scan.
JOURNAL OF SYNCHROTRON RADIATION
(2023)
Article
Chemistry, Multidisciplinary
Lili Liu, Benjamin A. Legg, William Smith, Lawrence M. Anovitz, Xin Zhang, Reed Harper, Carolyn I. Pearce, Kevin M. Rosso, Andrew G. Stack, Markus Bleuel, David F. R. Mildner, Gregory K. Schenter, Aurora E. Clark, James J. De Yoreo, Jaehun Chun, Elias Nakouzi
Summary: Predicting nanoparticle aggregation and attachment requires understanding of various factors such as crystal structure, particle morphology, surface chemistry, solution conditions, and interparticle forces. In this study, we used experimental, theoretical, and simulation methods to investigate the effect of solution pH on the aggregation of boehmite nanoplatelets. Our findings highlight the importance of facet-specific differences in surface chemistry and shape-dependent hydrodynamic forces in controlling aggregation behavior.
Article
Engineering, Environmental
Juliane Weber, Vitalii Starchenko, Ke Yuan, Lawrence M. Anovitz, Anton V. Ievlev, Raymond R. Unocic, Albina Y. Borisevich, Matthew G. Boebinger, Andrew G. Stack
Summary: This study presents experimental results on the reaction of magnesium oxide (MgO) with the atmosphere, revealing a substantial slowdown of the initial fast reaction due to surface passivation. Short-term experiments show rapid hydroxylation, carbonation, and formation of hydrated magnesium carbonate, highlighting the importance of reactive site density for carbonation kinetics.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Hung H. Nguyen, Vyacheslav S. Bryantsev, Claudio J. Margulis
Summary: Recent research has shown that excess electrons in high-temperature molten salts can react with the salts and form new species, including nanoparticles. This study investigates the fate of an excess electron in molten ZnCl2 and identifies three different states in which the electron can exist. Each state can be characterized by its own electronic spectrum.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Multidisciplinary Sciences
Corey D. Pilgrim, Travis S. Grimes, Clayn Smith, Colt R. Heathman, Jopaul Mathew, Santa Jansone-Popova, Santanu Roy, Debmalya Ray, Vyacheslav S. Bryantsev, Peter R. Zalupski
Summary: This study investigated the complexation of two acyclic aminopolycarboxylate chelators with trivalent lanthanides and minor actinides. The chelators, H(4)octapa and H(4)pypa-peg, are suitable for radiometal coordination and f-element isolation. H(4)octapa forms a compact coordination packet, while H(4)pypa-peg is less constrained. The solubility of H(4)pypa-peg is increased by introducing a polyethylene glycol group, without affecting its ability to complex the lanthanides and minor actinides.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Peng Yang, Sang Soo Lee, Paul Fenter, Jacquelyn N. Bracco, Andrew G. Stack
Summary: In this study, the sorption of arsenate, selenate, and molybdate on the barite (001) surface was investigated using advanced analytical techniques. The results revealed that arsenate and selenate primarily incorporate into the top monolayer of barite, while molybdate mainly adsorbs above the surface. The different sorption mechanisms can be explained by the protonation states of the anions at pH 5. Understanding these sorption mechanisms is crucial for controlling the environmental fate and transport of toxic metals.
ACS EARTH AND SPACE CHEMISTRY
(2023)
Article
Chemistry, Physical
Diwash Dhakal, Darren M. M. Driscoll, Niranjan Govind, Andrew G. G. Stack, Nikhil Rampal, Gregory Schenter, Christopher J. J. Mundy, Timothy T. T. Fister, John L. L. Fulton, Mahalingam Balasubramanian, Gerald T. T. Seidler
Summary: The study focuses on the emergence of cation-anion species in aqueous solutions and their impact on the physical properties of high solute concentration systems. Zn halide solutions are used as a model system to investigate the halide coordination number and changing coordination geometry. The results provide new insights into the physical chemistry of concentrated electrolytes and open up new research directions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Rajni Chahal, Santanu Roy, Martin Brehm, Shubhojit Banerjee, Vyacheslav Bryantsev, Stephen T. Lam
Summary: LiF-NaF-ZrF4 multicomponent molten salts have desirable properties for clean energy systems, but the quantification of their complex structures and composition dependence is limited. This study utilizes machine learning potentials to accurately predict extended-range structures and shows good agreement with experimental spectra.
Meeting Abstract
Biophysics
Jacob J. Kinnun, Haden L. Scott, Michael Melesse, Benjamin Doughty, Jesse Labbe, Patrick Collier, John Katsaras
BIOPHYSICAL JOURNAL
(2022)
Meeting Abstract
Biophysics
Haden L. Scott, Dima Bolmatov, Jacob J. Kinnun, Benjamin Doughty, Jan Michael Carillo, Patrick Collier, John Katsaras
BIOPHYSICAL JOURNAL
(2022)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)