Article
Chemistry, Multidisciplinary
Yingmei Wang, Aili Niu, Shenghao Liu, Ji Chen, Xuemin Zhang, Jing Zhan
Summary: In this study, the effects of tetra-n-butylammonium bromide (TBAB) and its mixtures with sodium dodecyl sulfate (SDS) and nanographite on the formation of carbon dioxide hydrates were investigated. The results showed that the mixtures of TBAB alone or with SDS or nanographite reduced the induced nucleation time. The concentration of SDS and nanographite had varying effects on the nucleation time. The rate and conversion of hydrate formation were influenced by the TBAB-SDS and TBAB-nanographite systems, with different concentrations yielding different results. Overall, the use of different accelerators had minimal impact on the total production, conversion, and formation rate of carbon dioxide hydrates.
Article
Engineering, Chemical
Fanny Thomas, Didier Dalmazzone, Jeffrey F. Morris
Summary: The wetting characteristics of ice-like clathrate hydrates at atmospheric pressure were studied using a new experimental method to measure the contact angle of various liquids. The results showed that the hydrate surface is water-wetting.
CHEMICAL ENGINEERING SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Ihtisham Ul Haq, Ali Qasim, Bhajan Lal, Dzulkarnain B. Zaini, Khor Siak Foo, Muhammad Mubashir, Kuan Shiong Khoo, Dai-Viet N. Vo, Eric Leroy, Pau Loke Show
Summary: The formation of gas hydrates is a significant issue in oil and gas pipelines, as they cause blockage and disrupt normal flow. Injecting ionic liquids as hydrate inhibitors is a solution, and imidazolium-based ionic liquids have been found effective. These inhibitors act as thermodynamic inhibitors, hydrate inhibitors, and anti-agglomerates.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Yang Zhao, Mingzhao Yang, Man Li, Hongsheng Dong, Yang Ge, Qingping Li, Lunxiang Zhang, Yu Liu, Lei Yang, Yongchen Song, Jiafei Zhao
Summary: Efficient gas enrichment methods are crucial for the storage, transportation, and sequestration of clean energy and carbon dioxide. A novel recyclable hydrate promoter has been developed, which effectively reduces the induction time of methane hydrate formation, increases gas storage capacity, and inhibits foam during hydrate decomposition. Additionally, this promoter enhances CO2 storage capacity and shows potential for sequestering CO2 in the form of gas hydrate under the seafloor.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Pharmacology & Pharmacy
Zunting Pang, Yuanfeng Wei, Hui Chen, Runze Wang, Xin Gao, Jianjun Zhang, Yuan Gao, Shuai Qian
Summary: This study investigated the thermodynamic and kinetic mechanism of the polymorphic transformation of Puerarin, including solvent-mediated and solid-state transformations. The results showed that stirring rate and temperature facilitated the solvent-mediated transformation, while heating led to the formation of different anhydrates from PUEMH and PUEDH. The dehydration rate differed between the two hydrated forms due to varying hydrogen bond interactions, with different rate-limiting steps in the dehydration process.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Engineering, Environmental
Xuejian Liu, Junjie Ren, Daoyi Chen, Zhenyuan Yin
Summary: The continuously increasing CO2 emissions since industrialization has sparked widespread concerns on environmental and climate change issues. This study compared the effect of sodium dodecyl sulfate (SDS) and L-methionine ((L)-Met) on CO2 hydrate formation kinetics, and found that (L)-Met is a more effective and eco-friendly kinetic promoter than SDS. The experimental results and hydrate morphology observations provided possible explanations for the observed kinetics. A novel calculation method was developed to quantify the partition of CO2 in different phases. The reusability of (L)-Met as a CO2 hydrate kinetic promoter was also demonstrated. This study highlights the importance of finding efficient and eco-friendly technologies for CO2 sequestration.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Chunxiao Li, Liang Yang, Daoping Liu, Ni Liu, Yingming Xie, Guomin Cui, Lixin Zhang, Ming Gao, Yugang Zhao, Juan Wang
Summary: This study finds that wet tobacco samples can promote the formation of hydrates. The wet loose biomass materials provide abundant nucleation sites and accelerate the formation rate of hydrates. In addition, wet tobacco samples exhibit higher gas uptake, which can be beneficial for the application of hydrate-based technology.
Article
Energy & Fuels
Lu Liu, Yuanxin Yao, Xuebing Zhou, Yanan Zhang, Deqing Liang
Summary: The study found that sodium dodecyl sulfate (SDS) can promote the formation of CO2 hydrates, increasing the formation rate and conversion rate of hydrates. The optimal SDS concentration for promoting hydrate formation was approximately 0.05 wt.%.
Article
Energy & Fuels
Yue Zhang, Zhi Li, Xiaodeng Yang, Tianduo Li
Summary: In recent years, the study of natural polymer products, such as methane hydrate inhibitors, has gained increasing attention in scientific research. This study successfully synthesized four chitosan derivatives and compared their methane hydrate inhibition effects with chitosan (CS) and carboxymethyl chitosan (CMCS). It was found that chitosan with high hydrophobicity effectively prevented the formation of methane hydrates, while the inhibition effect of CMCS could be improved by introducing specific chemical groups. This work provides inspiration for the further development of efficient and environmentally friendly kinetic hydrate inhibitors.
Article
Engineering, Environmental
Yongji Wu, Yurong He, Ming Zhai, Tianqi Tang
Summary: Research shows that using wet activated carbon samples and ice induction can effectively improve the synthesis rate and storage capacity of methane hydrates. By combining certain water content, appropriate particle size of activated carbon, and suitable pressure conditions, methane hydrates with high methane storage capacity can be obtained. This innovative technology is of great significance for the development of solidified natural gas technology.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Xiaoming Ni, Zheng Zhao, Zhiheng Li, Quanzhong Li
Summary: The study on the adsorptive behavior of kaolinite to SDBS at different concentrations revealed that the adsorption capacity of kaolinite increased with the concentration of SDBS. The adsorptive behavior was mainly of chemical origin and occurred mainly on the surface.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Environmental
Guodong Zhang, Runcheng Zhang, Fei Wang
Summary: Although activated carbon can enhance hydrate nucleation kinetics, the promotion is significantly reduced under low driving force and large water contents. Immobilizing silver nanoparticles on activated carbon improves hydrate nucleation, shortening induction time by enhancing external nucleation. These findings provide insights for utilizing porous carbon materials in hydrate-based solidified natural gas technologies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Chandan Sahu, Siddhant Kumar Prasad, Rajnish Kumar, Jitendra S. Sangwai
Summary: The rheological properties of CO2 hydrate slurries with and without the surfactant SDS were studied. It was found that dissolved CO2 actively participated in the nucleation and growth of hydrate crystals at higher pressures. The addition of SDS reduced the peak and steady-state viscosities of the slurries and exhibited pseudoplastic behavior. The presence of SDS also delayed the dissociation of CO2 hydrates and improved their stability and flowability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Marko Pavlovic, Heman Kumar Ramiya Ramesh Babu, Saveh Djalali, Zoran Pavlovic, Milan Vranes, Lukas Zeininger
Summary: A method for visualizing and quantifying surfactant effectiveness in different electrolyte environments using reconfigurable Janus emulsions as optical probes is presented. The effect of different types and concentrations of salt counter-ions on the surfactant surface excess was investigated for both ionic and non-ionic surfactants. It was found that the interfacial tensions of the ionic surfactants varied significantly, while the effect on the non-ionic surfactant was less pronounced. Overall, this study demonstrates the potential of Janus emulsions as powerful tools for studying surfactant properties at liquid interfaces.
Article
Engineering, Environmental
Chen Chen, Haoyu Yuan, Xiaoming Wang, Yan Lin, Yan He, Fei Wang
Summary: A recyclable magnetic Fe3O4 nanoparticle coated with SDS (SDS-coated Fe3O4) was synthesized and successfully used for hydrate formation promotion as well as cycle experiments. The results showed that SDS-coated Fe3O4 exhibited more efficient promotion for hydrate formation than bare Fe3O4. Further comparison of bare Fe3O4 and SDS-coated Fe3O4 during cycle experiments showed that after 5 cycles, the methane storage capacity and reaction time in presence of SDS-coated Fe3O4 can still be maintained, indicating its potential to increase the recyclability and economy for promoters in the hydrate-based technology.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Srawanti Medhi, Satyajit Chowdhury, Jitendra S. Sangwai, Dharmender Kumar Gupta
Summary: This study investigated the effect of aluminum oxide nanoparticles on the properties of salt-polymer-based drilling fluids. The addition of aluminum oxide nanoparticles improved the rheological properties, fluid loss control, and viscoelastic properties of the drilling fluid.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Engineering, Chemical
Lagnajita Paul, Namrata Gaikwad, Rajnish Kumar
Summary: Hydrate-based desalination is a promising and environmentally friendly technique for producing fresh water from saline water. This research investigated the kinetics of hydrate formation in saline water and compared the utility of CO2 and N-2 as hydrate formers for desalination work.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Amirun Nissa Rehman, Cornelius B. Bavoh, Bhajan Lal, Khalik M. Sabil, Jitendra S. Sangwai
Summary: This study investigates the effects of amino acid solutions on CO2 hydrate formation and dissociation kinetics. The findings show that amino acid solutions can stabilize hydrate dissociation but inhibit CO2 hydrate formation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Energy & Fuels
Hameed Hussain Ahmed Mansoor, Srinivasa Reddy Devarapu, Robello Samuel, Jitendra S. Sangwai, Swaminathan Ponmani
Summary: This study analyzes the effect of nanofluid enhanced water based drilling muds (NFWBMs) on the characteristics of water-based drilling mud (WBM) in the oil and gas industry. The results show that the nanofluid significantly improves the thermal stability and rheological properties of the WBM, while reducing the API fluid loss. This research contributes to the development of novel and green additives for water-based muds.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Chemical
Satyajit Chowdhury, Mayank Rakesh, Jitendra S. Sangwai
Summary: Injecting fluids during the secondary and tertiary stages of oil production can greatly enhance the total recovery of crude oil. The process of improving vertical and areal sweep efficiency is influenced by viscous and capillary forces. In addition to reservoir rock properties, the properties of reservoir and displacing fluids also play a crucial role in enhanced oil recovery.
INDIAN CHEMICAL ENGINEER
(2023)
Article
Energy & Fuels
Siddhant Kumar Prasad, Jitendra S. Sangwai
Summary: This study investigated the impact of chain length of saturated hydrocarbons on methane hydrate formation and dissociation kinetics in oil-in-water dispersions. Sodium dodecyl sulfate was used as a surfactant to simulate natural surfactants. The results showed that an appropriate concentration of SDS enhanced the hydrate formation during initial stages, but higher concentrations disrupted the structure of local water. With a fixed SDS concentration, higher carbon chain length accelerated the hydrate formation during initial stages before reaching similar formation kinetics. Higher concentrations and higher alkane content delayed the gas release during dissociation.
Article
Thermodynamics
Rahul Sarkhel, Chandan Sahu, Rajnish Kumar, Jitendra S. Sangwai
Summary: This study investigates the inhibitory effects of alkalis on methane hydrate formation and finds that sodium hydroxide performs better as an inhibitor. A simple model based on the vdW-P thermodynamic model accurately predicts the phase equilibrium of methane hydrate in the presence of alkali solutions. This research is important for designing efficient and cost-effective thermodynamic inhibitors for methane hydrate in the oil and gas industry.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2023)
Article
Chemistry, Multidisciplinary
Kavya Mrudula Tadepalli, Suman Chakrabarty, Pramod Patil, Rajnish Kumar
Summary: Oligomers of PDMS (M1), polyFast (M2), modified PVEE (M3 and M4), and two new molecules with cyclic cores (M5 and M6) were studied for their ability to thicken sc-CO2 without a cosolvent at 377 K and 55 MPa. PDMS and polyFast behaved as expected, with PDMS not improving viscosity and polyFast significantly enhancing it. M3 and M4 did not significantly improve viscosity even with the introduction of a styrene component, but solubility in the fluid was improved. M5 and M6, however, showed enhanced viscosity similar to polyFast due to their structural advantage and pi-pi interactions. The synthesis of these molecules was found to be moderately easy.
Article
Chemistry, Physical
Gaurav Vishwakarma, Bijesh K. Malla, K. S. S. V. Prasad Reddy, Jyotirmoy Ghosh, Soham Chowdhury, Sharma S. R. K. C. Yamijala, Sandeep K. Reddy, Rajnish Kumar, Thalappil Pradeep
Summary: Restricted migration of CO2 from clathrate hydrate cages to amorphous solid water matrix was observed in the presence of tetrahydrofuran (THF) under ultrahigh vacuum and cryogenic conditions. This cage-matrix exchange may create a more conducive environment for chemical transformations in interstellar environments.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Chemical
Namrata Gaikwad, Hyunho Kim, Gaurav Bhattacharjee, Jitendra S. Sangwai, Rajnish Kumar, Praveen Linga
Summary: This study experimentally investigated the formation of sH hydrate with methane and cyclooctane for possible applications in gas storage. The study found that the slow kinetics of sH hydrate formation can be improved by using low tryptophan concentrations. Raman analysis confirmed the presence of methane and cyclooctane in the sH hydrate cages.
ACS ENGINEERING AU
(2023)
Review
Chemistry, Multidisciplinary
Jyotirmoy Ghosh, Gaurav Vishwakarma, Rajnish Kumar, Thalappil Pradeep
Summary: Through multiple studies in a simulated interstellar environment, we have discovered several molecules' clathrate hydrates (CHs). These CHs play an important role in the chemical processes of the interstellar medium, contributing to the chemical evolution and formation of planetary systems as well as the origin of life.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Engineering, Environmental
Rahul Sarkhel, Chandan Sahu, Rajnish Kumar, Jitendra S. Sangwai
Summary: This study investigates the kinetics of CO2 hydrate formation and dissociation in the presence of CO2-philic additives. The results show that the additives, particularly DDP at a concentration of 0.5 wt%, significantly enhance the formation and dissolution rates of CO2 hydrates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Gaurav Vishwakarma, Bijesh K. Malla, K. S. S. V. Prasad Reddy, Jyotirmoy Ghosh, Soham Chowdhury, Sharma S. R. K. C. Yamijala, Sandeep K. Reddy, Rajnish Kumar, Thalappil Pradeep
Summary: Restricted migration limits chemical transformations within interstellar and cometary ices. We found that CO2 can migrate from clathrate hydrate cages to amorphous solid water in the presence of tetrahydrofuran under ultrahigh vacuum and cryogenic conditions. This migration may create a more conducive environment for chemical transformations in interstellar environments.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Chemical
Ganesh Kumar, Uma Sankar Behera, Ethayaraja Mani, Jitendra S. Sangwai
Summary: In this study, a novel nanofluid was prepared using positively charged Ludox CL silica nanoparticles and anionic Aerosol-OT surfactant to improve oil recovery from matured reservoirs. Experimental results showed that the nanofluid had higher oil recovery rate compared to traditional imbibition fluids, and exhibited excellent stability and potential as an imbibition agent for enhanced oil recovery applications.
ACS ENGINEERING AU
(2022)
Article
Energy & Fuels
Ankit Sharma, Abhijit Kakati, Sivabalan Sakthivel, Prashant Jadhawar, Jitendra Sangwai
Summary: The study evaluated the applicability of ionanofluids for enhanced oil recovery (EOR) applications and found that ionanofluids significantly reduce the interfacial tension of crude oil-nanofluid and have higher enhanced oil recovery efficiencies compared to nanofluids and ionic liquids alone, indicating their potential as excellent future EOR agents.
INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY
(2022)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)