Journal of the Taiwan Institute of Chemical Engineers最新文献

{"title":"Carboxymethyl cellulose grafted with lithium acrylate as anode binder for improving performance of lithium-ion batteries at low temperatures","authors":"Kuan-Yi Liao ,&nbsp;Chia-Chin Chang ,&nbsp;Yuh-Lang Lee ,&nbsp;Ten-Chin Wen","doi":"10.1016/j.jtice.2025.106188","DOIUrl":"10.1016/j.jtice.2025.106188","url":null,"abstract":"<div><h3>Background</h3><div>Due to numerous hydrogen bonding from carboxymethyl cellulose (CMC), CMC as anode binder for Lithium-Ion Batteries (LIBs) performs poor at low temperature. This study designs the less hydrogen bonding forming of anode binder to improve performance of LIBs at low temperatures.</div></div><div><h3>Methods</h3><div>CMC is grafted with LA via oxa-Michael addition to obtain the product, denoted as CMC-LA. Subsequently, LIBs are constructed by graphite-based anode with CMC-LA and CMC binders, respectively denoted as LIB-CMC-LA and LIB-CMC for coin cells with lithium metal. The data for capacities (<em>C</em>), charge transfer resistance (<em>R_ct</em>), and diffusion coefficients (<em>D</em>_Li+) are respectively calculated from galvanic charge-discharge cycles, electrochemical impedance spectroscopy, and cyclic voltammetry from 25 to -13 °C.</div></div><div><h3>Significant findings</h3><div>At 25 °C, the data for <em>C, R_ct</em>, and <em>D</em>_Li+ of LIBS-CMC-LA and LIBs-CMC are respectively calculated as 365 mAhg^-1, 15.9 Ω, and 9.84 × 10^–10 cm²s^-1, as well as, 323 mAhg^-1, 17.3Ω, and 2.7 × 10^–10 cm²s^-1. Noticeably, at -10 °C, the data for C, R_ct, and <em>D</em>_Li+ of LIBS-CMC-LA (163mAhg^-1, 613Ω, and 3.46 × 10^–11 cm²s^-1) significantly diverge from those of LIBS-CMC (76 mAhg^-1, 4000Ω, and 7.9 × 10^–13 cm²s^-1), being coincided with the results for the less exothermic area of CMC-LA than CMC from 0 to -20 °C by differential scanning calorimetry analysis.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106188"},"PeriodicalIF":5.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upcycling waste lotus seed heads into iron oxide-impregnated activated carbon for CO2 adsorption and supercapacitor application","authors":"Arun Kumar Senthilkumar ,&nbsp;Mohanraj Kumar ,&nbsp;Jih-Hsing Chang","doi":"10.1016/j.jtice.2025.106198","DOIUrl":"10.1016/j.jtice.2025.106198","url":null,"abstract":"<div><h3>Background</h3><div>CO₂ emissions are a major concern due to their impact on global warming scenarios. The increased CO₂ level in the atmosphere demands the creation of effective, environmentally friendly methods to reduce its impact.</div></div><div><h3>Methods</h3><div>In this study, we investigated the use of iron oxide on carbon surfaces as a highly effective CO₂ adsorbent. Impregnating iron oxide on a carbon matrix generated from lotus seed heads increased the surface chemistry and active sites. The surface properties and chemical composition of the material were investigated using X-ray photoelectron spectroscopy, Fourier Transform infrared spectroscopy, and Brunauer-Emmett-Teller.</div></div><div><h3>Significant findings</h3><div>The activated carbon prepared from lotus seed heads at 800°C exhibits an enhanced surface area of 1179.657 m² g^-1, with a micropore volume of 0.461 cm³ g^-1. Following the impregnation process, the surface area decreased, indicating successful impregnation of iron oxide within the carbon matrix. The resulting sorbent material leverages the advantages of both physical and chemical adsorption, utilizing the micropores in the carbon matrix alongside the catalytic properties of iron compounds. Research findings indicate that the L-Fe material significantly improves the CO₂ adsorption rate to 62.16 mg/g, due to the stronger interaction between CO₂ molecules and the active surface sites. Furthermore, the adsorbent material exhibits notable durability and reusability across multiple adsorption-desorption cycles, underscoring its suitability for large-scale industrial applications. Concurrently, the carbon material enhanced with iron oxide exhibited outstanding capabilities as an electrode component, showcasing a charge storage capability of 153.5 F g^-1 and exceptional stability of 86.84% for 5000 charge-discharge cycles. The material shows remarkable reusability for CO₂ sequestration and durability in energy storage, highlighting its versatile capabilities. These findings underscore the potential of carbon infused with iron oxide as an eco-friendly and cost-effective solution for addressing global environmental challenges while promoting advancements in renewable energy.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106198"},"PeriodicalIF":5.5,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved performance of highly sensitive room-temperature ammonia gas sensor with P-type doping carbazole-triazine derivative","authors":"Yu-Hsiang Cheng ,&nbsp;Chien-Chih Chen ,&nbsp;Li-Yin Chen ,&nbsp;Yi-Jyun Ma ,&nbsp;Hsuang-Kai Hsiao ,&nbsp;Ying-Chang Lu ,&nbsp;Jung-Kang Tu ,&nbsp;Hsiao-Wen Zan ,&nbsp;Hsin-Fei Meng ,&nbsp;Hao-Wu Lin ,&nbsp;Yung-Hsu Tai ,&nbsp;Mei-Hsin Chen","doi":"10.1016/j.jtice.2025.106197","DOIUrl":"10.1016/j.jtice.2025.106197","url":null,"abstract":"<div><h3>Background</h3><div>The detection and monitoring of ammonia (NH₃) gas are critical for various applications, including environmental monitoring, industrial safety, and medical diagnostics. NH₃ is a significant biomarker for chronic kidney disease and the effectiveness of hemodialysis, requiring sensors capable of detecting ppb-level concentrations. While advanced analytical techniques meet the sensitivity requirements, their high cost and complex instrumentation limit practical applications. Developing cost-effective, highly sensitive, and user-friendly ammonia sensors remains a priority.</div></div><div><h3>Methods</h3><div>This study presents a room-temperature NH₃ gas sensor based on 2,4-diphenyl-6-bis(12-phenylindolo)[2,3-a]carbazole-11-yl)-1,3,5-triazine (DIC-TRZ), a material known for its high carrier mobility and stable electrical properties. The sensor was integrated into a vertical nano-junction device structure, and its performance was enhanced using a p-type doping strategy with 1 wt % F4-TCNQ. The operational current, sensitivity, limit of detection (LOD), stability, and selectivity were systematically evaluated.</div></div><div><h3>Key Findings</h3><div>The DIC-TRZ-based sensor demonstrated excellent ammonia detection performance, with a sensitivity of 0.0467 %/ppb and an LOD of 20.7 ppb for the non-doped device, and a sensitivity of 0.0391 %/ppb and an LOD of 16.0 ppb for the doped device. The sensor exhibited rapid response and recovery times and a stable operational current. The doping strategy increased the current by nearly two orders of magnitude, reaching ∼10⁻⁵ A, significantly improving the signal-to-noise ratio. This enhancement enabled real-time current measurement using a low-cost multimeter, broadening the applicability for environmental monitoring, medical diagnostics, and portable applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106197"},"PeriodicalIF":5.5,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of compact self-standing covalent organic framework membranes with ultrahigh flux and superior performance for dye separation","authors":"Sara Hameed ,&nbsp;Farhat Jubeen ,&nbsp;Munawar Iqbal ,&nbsp;Nargis Bano ,&nbsp;Misbah Sultan ,&nbsp;Atif Islam ,&nbsp;Ayyar Manikandan ,&nbsp;Arif Nazir","doi":"10.1016/j.jtice.2025.106186","DOIUrl":"10.1016/j.jtice.2025.106186","url":null,"abstract":"<div><h3>Background</h3><div>Covalent organic frameworks (COFs) have become a promising candidate for advanced water treatment membranes due to their adjustable pore sizes, high surface area, remarkable thermal and chemical stability. Typically, COFs are separated as unrefined and insoluble powders, due to which their extensive use as nano-filtration membranes is greatly limited.</div></div><div><h3>Method</h3><div>In this work, we report a facile method of evaporation casting of homogeneous polymerized COF solutions on cellulose support (CS). The homogeneous polymerization method eliminates the need for prior modification of the CS surface, making it a groundbreaking achievement in our study. BZTP-COF solution was prepared by using benzidine (BZ) and terephthalaldehyde (TP). While BZ, melamine (ME) and 2,4,6-triformylphloroglucinol (TFP) were used to prepare the BZMETFP-COF solution.</div></div><div><h3>Significant Findings</h3><div>As expected, the anionic COF membranes exhibited an excellent permeation flux of up to 9479 Lm⁻²h⁻¹MPa⁻¹ with different protic and aprotic solvents. Overall, the BZTP-CS-COF membrane exhibited excellent water permeability (5420 Lm⁻²h⁻¹MPa⁻¹) and high selectivity with 98% rejection against aqueous MB dye solution. This work provides a pivotal concept and strategies for facile preparation of COF membrane under mild conditions for the treatment of dyeing process effluents.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106186"},"PeriodicalIF":5.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic analysis and separation kinetics of liquid-liquid extraction process in water-organic solvent-Quercetin system","authors":"Mohd Aurif Shergujri,&nbsp;Gaurav Ashok Bhaduri","doi":"10.1016/j.jtice.2025.106190","DOIUrl":"10.1016/j.jtice.2025.106190","url":null,"abstract":"<div><h3>Background</h3><div>Thermodynamic evaluation of Quercetin distribution in water and organic solvent system is important for the design of Quercetin separation process. Additionally, kinetic analysis of Quercetin distribution has an effect on its separation efficiency. These are useful in designing process for green separation of Quercetin involving aqueous extracts.</div></div><div><h3>Methods</h3><div>The liquid-liquid extraction process has been demonstrated with equilibrium data for water-organic solvent-Quercetin system. This is studied at three different temperatures i.e. 293, 303, and 313 K. The organic solvent mixture used was ethyl acetate-hexane (1:1 v/v). Kinetic studies of the purification process along with its optimisation was done using a stirred tank.</div></div><div><h3>Significant Findings</h3><div>The distribution coefficient of Quercetin was in the range of 9.5–0.78 and the separation factor was in the range of 281.7–22.7. The distribution coefficient and extraction efficiency was not affected with change in temperature. The degree of consistency of the equilibrium was evaluated using Othmer-Tobias equation. Additionally, the kinetic study showed that the mass transfer coefficient was a function of stirrer speed and volumetric ratio of aqueous to organic phase. The maximum mass transfer coefficient of 9.41 min^-1 was obtained for a stirrer speed of 600 rpm and ratio of V_aq/V_org of 2.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106190"},"PeriodicalIF":5.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction of drug solubility in polymer with COSMO-SAC","authors":"Xiao-Ci Lin,&nbsp;Hung-Cheng Huang,&nbsp;Chieh-Ming Hsieh","doi":"10.1016/j.jtice.2025.106177","DOIUrl":"10.1016/j.jtice.2025.106177","url":null,"abstract":"<div><h3>Background</h3><div>For drugs categorized in Class II of the Biopharmaceutics Classification System, i.e., drugs with low solubility and high permeability, incorporating polymers to create an amorphous solid dispersion (ASD) is recognized as a strategy to mitigate its low solubility issue. However, ASDs may exist in a thermodynamically metastable state under certain composition conditions at storage temperature, resulting in recrystallization and phase separation over time. Thermodynamic phase diagrams for drug/polymer binary systems, which consist of drug solubility versus temperature and glass-transition temperature versus drug content curves, provide essential information for designing an optimal ASD.</div></div><div><h3>Methods</h3><div>The COSMO-SAC model is applied to predict drug solubility in polymers at different temperatures, and its accuracy is evaluated using solubility data from 59 drug-polymer binary systems composed of 19 drugs and 22 polymers with varying molecular weights and types. The well-known Gordon-Taylor model is used to describe the relationship between glass-transition temperatures and drug compositions.</div></div><div><h3>Significant Findings</h3><div>The solubility predicted by the COSMO-SAC model without predetermined species-specific parameters or empirical binary interaction parameters is comparable to that predicted from other models. This study highlights the potential for generating a thermodynamic phase diagram by combining the results from the COSMO-SAC model and the Gordon-Taylor equation.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106177"},"PeriodicalIF":5.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the potential of Bacillus cereus for the biodegradation of antibiotic metronidazole in aqueous solutions","authors":"Mai Lien Tran ,&nbsp;Yu-Chieh Hsieh ,&nbsp;John Chi-Wei Lan ,&nbsp;Ruey-Shin Juang","doi":"10.1016/j.jtice.2025.106192","DOIUrl":"10.1016/j.jtice.2025.106192","url":null,"abstract":"<div><h3>Background</h3><div><strong>:</strong>Wastewaters discharged from pastures, hospitals, and some factories often contain trace amounts of various antibiotics. If these antibiotics are not properly treated, they will cause bacterial resistance and have a new impact on human health.</div></div><div><h3>Methods</h3><div><strong>:</strong>In this study, bacteria were first adopted for solid-state antibiotic culture tests, while contaminating bacteria identified to be <em>Bacillus cereus</em> (<em>B. cereus</em>) were selected and cultured. After culture in liquid medium, different concentrations of metronidazole (MNZ) were added for further degradation tests.</div></div><div><h3>Significant Findings</h3><div><strong>:</strong>The results revealed that MNZ could be degraded although MNZ has an inhibitory effect on <em>B. cereus</em> growth. The Haldane model was used to analyze cell growth kinetics. The maximum specific growth rate μ_max, affinity constant <em>K</em>_S, and inhibition constant <em>K</em>_I were calculated to be 0.0158 h^-1, 29.7 mg/L, and 267.0 mg/L, respectively. The GC–MS analysis showed that only acetic acid was detected during the biodegradation of MNZ, suggesting possible MNZ degradation pathways.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106192"},"PeriodicalIF":5.5,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement of powder properties of boscalid monohydrate by a quasi-emulsion solvent diffusion-based crystallization route","authors":"Zeren Shang ,&nbsp;Weiguo Hu ,&nbsp;Jingkang Wang ,&nbsp;Junbo Gong","doi":"10.1016/j.jtice.2025.106181","DOIUrl":"10.1016/j.jtice.2025.106181","url":null,"abstract":"<div><h3>Background</h3><div>The smooth production of pesticide formulation of boscalid monohydrate is restricted by its poor flowability. Here, this work develops a QESD-based crystallization route for preparing spherical agglomerate of boscalid monohydrate.</div></div><div><h3>Methods</h3><div>The solubility of boscalid (form II) in ethyl acetate was measured and correlated to provide reference for designing subsequent crystallization experiments. Besides, modeling work was implemented to predict the morphologies of the two solid forms of boscalid and explain the formation mechanisms. By investigating types of emulsifiers, emulsifier concentration, boscalid concentration and stirring rate, the crystallization route for producing spherical agglomerate of boscalid monohydrate was designed and optimized. Online monitoring and ¹H NMR experiments were used to study the fabrication mechanism of boscalid monohydrate spherical agglomerate.</div></div><div><h3>Significant Findings</h3><div>Firstly, boscalid has suitable solubility in ethyl acetate, which indicates that ethyl acetate is suitable as a good solvent in the crystallization process of boscalid. Secondly, the modeling results show that the solvent-crystal interactions composed of hydrogen bonding interaction and van der Waals interaction are affected by the roughness of the crystal face and the exposed functional groups on the crystal face. And the different solvent-crystal interactions on the four crystal faces of boscalid monohydrate make solvent molecules have different suppression influences on the growth rate of each crystal face in the ethyl acetate-water system. Thirdly, boscalid monohydrate spherical agglomerate with uniform particle size and good flowability was successfully fabricated out. Fourthly, online monitoring and ¹H NMR results confirm that the hydrogen bonding interaction between boscalid and HPMC enables the stability of emulsion droplets where boscalid monohydrate agglomerates into spherical particle. Finally, the scalability and sustainability prospects of the crystallization route have been explored.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106181"},"PeriodicalIF":5.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sintering of Cu nanoparticles for optimized particle size and enhanced interconnect performance","authors":"Ping-Hsuan Chen ,&nbsp;Hung Wang ,&nbsp;Kelvin Li ,&nbsp;Chang-Meng Wang ,&nbsp;Cheng-Yi Liu ,&nbsp;Albert T. Wu","doi":"10.1016/j.jtice.2025.106185","DOIUrl":"10.1016/j.jtice.2025.106185","url":null,"abstract":"<div><h3>Background</h3><div>The performance and reliability of wide-bandgap devices depend on achieving effective Cu-Cu bonding, which requires control over critical processing conditions. Copper nanoparticles (Cu NPs) with controlled sizes are introduced to improve Cu-Cu bonding in electronic packaging.</div></div><div><h3>Methods</h3><div>A green chemical method was used to reduce CuO and synthesize Cu nanoparticles (Cu NPs), which were then applied to achieve Cu-to-Cu bonding. The bonding process was conducted at low temperature without pressure, utilizing polyethylene glycol (PEG) as both solvent and reducing agent. The mechanical and electrical properties of the Cu NPs paste joint were measured by shear testing and four-point probe measurement.</div></div><div><h3>Significant findings</h3><div>This study explores the nucleation and growth mechanisms of copper nanoparticles (Cu NPs) and their role in optimizing bonding conditions through control of surface oxidation. The effect of pH on synthesis parameters is emphasized, demonstrating its significant influence on particle size, distribution, and sintering properties. A model is proposed to elucidate the competition between surface energy and reduction energy within the Cu₂O layer, providing insights into optimal sintering conditions. These advancements in Cu NP synthesis and sintering technology result in improved mechanical properties, including increased shear strength, reduced void ratios, and higher density in bonded structures.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106185"},"PeriodicalIF":5.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longwave nonlinear stability of two liquid layers coating both sides of a thick wall with slip in presence of gravity","authors":"L.A. Dávalos-Orozco,&nbsp;J.L. Villalobos-Piñera","doi":"10.1016/j.jtice.2025.106162","DOIUrl":"10.1016/j.jtice.2025.106162","url":null,"abstract":"<div><h3>Background:</h3><div>The process of dip coating has been investigated for many years and it consists of pulling out a solid slab from a liquid pool. Then two liquid layers will remain coating the slab. When it is rotated into a horizontal position the liquid-wall-liquid system is subjected to a perpendicular temperature gradient and gravity.</div></div><div><h3>Methods:</h3><div>Two thermally coupled nonlinear evolution equations for the free surfaces deformations are derived using the small wavenumber approximation including thermocapillary effects, gravity and slip at the wall.</div></div><div><h3>Significant Findings:</h3><div>The linear growth rate and maximum growth rate of instability were investigated. Due to the coupling of the two liquid layers the instability can be stationary or oscillatory. It is shown that slip at the wall-liquid interfaces may destabilize the flow, but under important circumstances, slip may stabilize in two different ways. First, slip may stabilize decreasing the growth rate with the increase of the perturbation wavenumber above a critical one. Second, from the point of view of the maximum growth rate, slip may stabilize in a certain range of the Marangoni number. These two cases are shown with samples of nonlinear free surfaces profiles. Nonlinear sinuous or varicose mode is also investigated.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106162"},"PeriodicalIF":5.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}