Materials Chemistry and Physics最新文献

{"title":"CO2 reforming of methane over Ni-Al-LDH catalysts prepared with different precipitants","authors":"Isabele Giordani Wenzel,&nbsp;Oscar W. Perez-Lopez","doi":"10.1016/j.matchemphys.2024.130115","DOIUrl":"10.1016/j.matchemphys.2024.130115","url":null,"abstract":"<div><div>NiAl-LDH catalysts were synthesized using the co-precipitation method with different precipitant. One of the samples (NiAl_C) was prepared with a Na₂CO₃ solution, while the other sample (NiAl_M) was prepared with a mixture of Na₂CO₃ and NaOH. These catalysts were evaluated in the dry reforming of biogas, utilizing a synthetic biogas consisting of 60 % (v/v) CH₄ and 40 % CO₂. Characterization techniques including X-ray diffractometry (XRD), N₂ adsorption-desorption, thermogravimetric analysis (TGA), and temperature-programmed reduction and oxidation (H₂-TPR and TPO, respectively), NH₃, CO₂, and H₂ desorption (NH₃-TPD, CO₂-TPD, and H₂-TPD, respectively) where used in different stages of catalysts. Both samples resulted in LDH with small differences in cell parameter c and specific surface area. The precipitant containing NaOH led to an increase in the NiAl₂O₄ spinel phase and in the metallic dispersion of NiAl_M, enhancing thermal stability and resistance to sintering. However, this elevated metallic area facilitated the presence of acid sites, promoting CH₄ decomposition and carbon deposition. The reduction step proved unnecessary for this catalyst, as the reduced catalyst led to an increase in structured carbon formation. The delicate balance between thermal stability and carbon deposition favors the NiAl_M sample under reaction conditions without the reduction step.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130115"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of the performance of copper/graphite system for GIL Tri‐post grounding electrode based on plasma sintering technology","authors":"Zichen Zhang ,&nbsp;Hao Yang ,&nbsp;Ruilei Gong ,&nbsp;Miaomiao Chen ,&nbsp;Zengjie Li ,&nbsp;Hailin Lu","doi":"10.1016/j.matchemphys.2024.130117","DOIUrl":"10.1016/j.matchemphys.2024.130117","url":null,"abstract":"<div><div>Grounding electrodes, as crucial components of GIL bushings, experience friction with the GIL shell during long-term operation, generating metal particles that induce partial discharge. This phenomenon can lead to internal insulation breakdown, severely compromising GIL operation. This study focuses on enhancing the wear resistance of grounding electrodes by proposing a solution involving copper-graphite composites. Copper/graphite composite materials were fabricated using Spark Plasma Sintering technology. Additionally, the impact of graphite content and particle size on wear resistance, hardness, and electrical conductivity was comprehensively analyzed. Performance evaluation using radar chart analysis identified the optimal solution. The results indicate that at a sintering temperature of 960 °C, pressure of 45 MPa, and holding time of 15 min, with a graphite mass fraction of 7 %, the grounding electrode material exhibits a smooth surface and uniform distribution of graphite. Furthermore, when the graphite particle size is 4 μm, the friction coefficient remains approximately 0.7 with minimal fluctuations. The abrasion produces scratches measuring only 190 μm, and the wear rate is recorded at 2.1128 × 10⁻⁴ mm³/N·m, while the hardness reaches 59.6 HV, an increase of 19.6 HV compared to a particle size of 40 μm. In conclusion, an appropriate graphite content effectively enhances the wear resistance of the grounding electrode, and a reduction in graphite particle size optimizes overall performance. When the composite material contains 7 % graphite with a particle size of 4 μm, the performance is optimal, allowing the grounding electrode to maintain its original properties while demonstrating excellent wear resistance. This study provides a significant approach to optimizing the performance of grounding electrodes.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130117"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mixed-dimensional nanofluids: Synergistic thermal enhancement using 2D and 1D materials","authors":"Shivakumar Jagadish Shetty ,&nbsp;M.P. Shilpa ,&nbsp;Saideep Shirish Bhat ,&nbsp;Srivathsava Surabhi ,&nbsp;K.S. Pavithra ,&nbsp;A. Ganesha ,&nbsp;T. Niranjana Prabhu ,&nbsp;R.C. Shivamurthy ,&nbsp;S.C. Gurumurthy","doi":"10.1016/j.matchemphys.2024.130116","DOIUrl":"10.1016/j.matchemphys.2024.130116","url":null,"abstract":"<div><div>Excessive heat generation is a common problem in automobiles due to wear and tear of working parts. A suitable heat transfer system is required to avoid stalling automobiles due to the large quantity of heat generated. Liquids like water and ethylene glycol (EG) serve as a coolant by reducing generated heat. To further increase the effectiveness of these coolants, nanofluids which contain nanosized particles dispersed in base fluid like water, ethylene glycol, or a mixture of these two, can be used. In the present work, hybrid nanofluids using Ti₃C₂ (MXene) (2D) and functionalized multi-wall carbon nanotubes (F-MWCNTs) (1D) nanocomposites are prepared. The prepared material is characterized using X-ray diffraction (XRD) for structural analysis, field emission scanning electron microscopy (FESEM), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM) with energy dispersive X-ray analysis (EDAX) for morphological and elemental analysis, and Fourier transform infrared spectroscopy (FTIR) for identifying functional groups. The suitability of the prepared nanofluids is tested for heat transfer application by measuring the thermal conductivity and viscosity. The long-term stability of the nanofluids is verified by zeta potential measurement. The addition of the dispersant to the water has shown an enhanced thermal conductivity (about 10.83% at room temperature and 96.76% at 50 °C) while having lower viscosity compared to the base fluid (water), confirming the suitability for heat transfer applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130116"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing microstructure, nanomechanical and tribological properties of TiAl alloy processed by spark plasma sintering with Si3N4 ceramic particulates addition","authors":"Azeez Lawan Rominiyi ,&nbsp;Peter Madindwa Mashinini ,&nbsp;Moipone Linda Teffo","doi":"10.1016/j.matchemphys.2024.130113","DOIUrl":"10.1016/j.matchemphys.2024.130113","url":null,"abstract":"<div><div>TiAl matrix composites reinforced with varying weight fractions of Si₃N₄ ceramic particles were successfully fabricated by the spark plasma sintering method. The microstructure, nanomechanical and tribological properties of the sintered composites were investigated. The microstructural characterization revealed the evolution of a quasi-continuous and continuous network structure consisting of minor fractions of in-situ formed Ti₂AlN, unreacted Si₃N₄ ceramic particles and dominant Ti₅Si₃ intermetallic phases within the TiAl matrix at Si₃N₄ content above 1.5 wt%. The in-situ precipitated phases enhanced the nanomechanical and tribological properties of the composites. The 7Si₃N₄/TiAl composite displayed the best nanomechanical properties, including nanohardness, elastic modulus, and <em>H/E</em>_<em>r</em> ratio among the sintered samples. The specific wear rate of the composites decreases with increasing reinforcement content. 7Si₃N₄/TiAl composite exhibited the lowest specific wear rate of 0.38 ± 0.55 <span><math><mrow><mo>×</mo></mrow></math></span> 10⁻⁴ mm³/Nm, representing a 95.6 % improvement in wear resistance compared to the unreinforced pure TiAl alloy. The improved wear performance of the composites was attributed to their load-bearing capacity and wear resistance of the hard, in-situ Ti₂AlN, Ti₅Si₃ and unreacted Si₃N₄ particles in the TiAl matrix. The composites displayed a transition from adhesive wear to predominantly abrasive wear where the hard Si₃N₄ particles prevented direct metal-to-metal contact and facilitated the formation of a protective tribolayer, resulting in enhanced wear resistance. Hence, the developed Si₃N₄/TiAl composites are suitable for various structural and tribological applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130113"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly sensitive electrochemical sensor based Nd2O3/graphene for monitoring additive compounds in palm oil product","authors":"Rahmat Hidayat ,&nbsp;Ganjar Fadillah ,&nbsp;Febi Indah Fajarwati ,&nbsp;Aldo Diandra Nur Ramdani ,&nbsp;Qonita Awliya Hanif ,&nbsp;Muhaimin","doi":"10.1016/j.matchemphys.2024.130121","DOIUrl":"10.1016/j.matchemphys.2024.130121","url":null,"abstract":"<div><div>The use of additives, such as 3-monochloropropane-1,2-diol (3-MCPDs), in palm oil products can impact the product's quality and safety. Therefore, it is essential to have a sensitive and accurate detection method. This study explored the hydrothermal synthesis of Nd₂O₃/graphene (Nd₂O₃/G) composites and their application as electrochemical sensors for detecting 3-MCPDs as additive compounds in palm oil products. Different techniques for characterization, such as Fourier Transform Infra-Red (FTIR), X-ray diffraction (XRD), and Scanning Electron Microscopy (SEM), supply evidence supporting the successful assembly and positive arrangement of the Nd₂O₃/G composite. The sensor's electrochemical efficacy is assessed concerning the detection of typical additives found in palm oil (3-MCPDs). The sensor performance test is studied by voltammetric technique. The modified sensor showed good analytical performance for detection of 3-MCPDs with improving electrocatalytic activity, electron transfer, and reduced charge transfer resistance (R_ct). These modifications greatly enhance the sensor's ability to accurately detect 3-MCPDs with limit of detection of 0.65 μM. This developed sensor shows a great stability and accuracy, thus it has potential to apply in quality control and daily analysis process.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130121"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of the nanostructure design on the corrosion behaviour of TiN thin films prepared by glancing angle deposition","authors":"Cláudia Lopes ,&nbsp;Alexandra C. Alves ,&nbsp;Armando Ferreira ,&nbsp;Eduardo Alves ,&nbsp;Nuno Pessoa Barradas ,&nbsp;Ioana Borsan ,&nbsp;Daniel Munteanu ,&nbsp;Filipe Vaz","doi":"10.1016/j.matchemphys.2024.130100","DOIUrl":"10.1016/j.matchemphys.2024.130100","url":null,"abstract":"<div><div>This study reports on the influence of nanostructure design on the corrosion behaviour of titanium nitride (TiN) thin films, prepared by DC reactive magnetron sputtering, using the Glancing Angle Deposition (GLAD) technique. The primary objective was to explore how modifying the deposition geometry affects the growth design and surface features of TiN films (keeping roughly constant the N/Ti ratio) and compare these effects with those produced by changing the chemical composition within the same thin film system (N/Ti increasing ratios). For this, two groups of samples were prepared: Group 1 – the samples were prepared in the conventional geometry (normal growth) with varied nitrogen content (stoichiometric and non-stoichiometric films) and; Group 2 – the samples were prepared with modified growth geometries (inclined and zigzag, with increasing incidence angles), keeping an almost unchanged stoichiometry. The results revealed increased surface porosity and roughness for Group 2 films compared to Group 1, demonstrating that deposition geometry can affect more significantly the surface characteristics than the composition variations. Corrosion studies indicated that the films prepared within Group 2, despite having higher porosity, showed a more stable open circuit potential (OCP) and nobler values than the reference close-stoichiometric TiN_0.92 film (reference sample) from Group 1. However, potentiodynamic polarization curves suggested higher corrosion kinetics for Group 2 films, most likely due to their increased surface heterogeneities. Electrochemical impedance spectroscopy (EIS) confirmed these findings, showing lower corrosion resistance for films prepared with inclined and zigzag geometries, if compared to the films prepared in conventional geometry (Group 1 samples).</div><div>This study advances the current state of the art on this film's responses, by demonstrating that tailoring nanostructure design through deposition geometry offers a promising approach to optimize the corrosion behaviour of TiN_x without the need to change its composition.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130100"},"PeriodicalIF":4.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Size-controlled synthesis and sensing properties of anthracene-based metal-organic frameworks for detection of singlet oxygen in photodynamic therapy","authors":"Ning Li ,&nbsp;Ying Yang ,&nbsp;Linshan Jia ,&nbsp;Xiaotong Li ,&nbsp;Yunkun Zhao ,&nbsp;Xiaohong Hou","doi":"10.1016/j.matchemphys.2024.130112","DOIUrl":"10.1016/j.matchemphys.2024.130112","url":null,"abstract":"<div><div>Developing fluorescent probes to detect singlet oxygen (¹O₂) is essential to understanding the critical role of ¹O₂ in immunological and pathological processes in various organs. In this study, size-controlled DPA-MOF (X) with good biocompatibility and excellent optical stability was used as a nanoprobe for real-time imaging and monitoring of ¹O₂ in photodynamic therapy (PDT). The experimentally synthesized DPA-MOF (X), which can be adjusted in particle size by dilution, exhibits blue fluorescence signals. The results show that smaller-sized DPA-MOF (60) has a faster response to ¹O₂ and higher cell uptake ability. The ratio of fluorescence intensity (<em>F</em>_<em>0</em>/<em>F</em>_<em>i</em>) of DPA-MOF (60) showed a linear correlation with the concentration of ¹O₂ in the range of 0–7 mM, with a detection limit of 88 μM. DPA-MOF has a distinct advantage over most carrier loading sensors in that it effectively avoids the issue of fluorophore leakage from the nanomaterial matrix, thereby improving its stability. Additionally, the controlled synthesis of DPA-MOF can potentially improve probe accumulation in tumors and lower the uptake by the body system. This study presents a luminescent metal-organic framework (LMOF) sensor that utilizes a ¹O₂ capture unit as a measuring ligand. This sensor has been shown to have exceptional biocompatibility and can be utilized for highly specific and efficient detection of ¹O₂ in vivo or living cells.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130112"},"PeriodicalIF":4.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Poly (acrylic acid-co-2-hydroxyethyl methacrylate)-grafted gum ghatti hydrogel for capturing heavy metal ions","authors":"Praveen Kumar ,&nbsp;Poorn Prakash Pande ,&nbsp;Prateek Khare ,&nbsp;Ravi Shankar ,&nbsp;Arbind Chaurasiya ,&nbsp;Narendra Pratap Tripathi","doi":"10.1016/j.matchemphys.2024.130106","DOIUrl":"10.1016/j.matchemphys.2024.130106","url":null,"abstract":"<div><div>In this work, a facile route is explored for the synthesis of a novel polymer composite-based hydrogel (PC-hydrogel). The ratio of 2-(Hydroxyethyl) methacrylate (HEMA) and acrylic acid (AA) is optimized first based on Fourier transform infra-red spectroscopy, swelling ratio (SR%) and surface negative charge (PZC). Results indicate that PC-hydrogel composed of copolymer of HEMA: AA in 1:4 ratio is optimized, for grafting on Gum ghatti (Gg) during free-radical graft copolymerization process. Among all other possible combination of HEMA: AA, 1:4 ratio grafted Gg is termed as PC-hydrogel [Poly (AA-co-HEMA)-g-Gg]. PC-hydrogel exhibited negative surface charge over a wide range of pH owing to increase in AA. The swelling (g/g) and water retention ratio (%) of the prepared hydrogel have been found to be 342.6, 385 &amp; 412.6 g/g and 74.83, 65.30 &amp; 57.86 % in grey, tap and distilled water respectively. Furthermore, PC-hydrogel is applied for capturing Cu²⁺ and Co²⁺ ions in aqueous phases. Experimental results showed that adsorption process was pH-dependent, and the maximum capturing of Cu²⁺ and Co²⁺ was observed at neutral pH 7. Among different adsorption isotherms models like Langmuir, Freundlich, and Temkin models, experimental data fitted closely with the Langmuir adsorption model showing a maximum adsorption capacity of 381.67 and 328.94 mg/g for Cu²⁺ and Co²⁺ respectively. The capturing of metal ion followed pseudo-second-order rate model [rate constant k = 1.7 x 10⁻⁴ for Cu²⁺ and 1.5 x 10⁻⁴ for Co²⁺ g/(mg.min)]. The PC-hydrogel property retained its uptake capacity of metal ions up to the three successive adsorption−desorption cycles, and exhibited higher selectivity towards Cu²⁺ and Co²⁺ and other (NaCl, MgCl₂, CaCl₂) coexisting ions.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130106"},"PeriodicalIF":4.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-situ formation of polymer-stabilized/-free cholesteric bi-layer photonic crystal","authors":"Kuan-Wu Lin,&nbsp;Chun-Chuan Wang,&nbsp;Yu-Chieh Chang,&nbsp;Yu-Chieh Li,&nbsp;Chun-Ta Wang","doi":"10.1016/j.matchemphys.2024.130093","DOIUrl":"10.1016/j.matchemphys.2024.130093","url":null,"abstract":"<div><div>Tunable photonic crystals based on cholesteric liquid crystals (CLCs) have attracted considerable attention due to their tunable optical properties and self-assembly capabilities. Despite the rapid development of various CLC-based devices, the narrow bandwidth of the photonic bandgap in CLCs limits their use in some practical applications. This paper presents a method for forming polymer-stabilized and polymer-free cholesteric bilayer photonic crystals in polymer-stabilized cholesteric liquid crystals (PSCLCs). By tuning the concentration of reactive monomers and controlling the UV polymerization conditions, two different PBGs can be formed within a single PSCLC cell. As the concentration of RM257 increases to 40 % and the intensity of UV light is used at 22 mW/cm², the distance between the two reflectance bands can reach 200 nm, reflecting green and red light. The dynamic formation process and the tunability of these cholesteric bilayer structures under electric fields and temperature variations are investigated. By controlling the temperature and electric field, the reflectance of the liquid crystal layer can be reduced from 50 % to 15 %, resulting in a single-band reflection. In addition, we have proposed a tunable polarization volume grating based on the cholesteric bi-layer photonic crystal, which can diffract two specific light colors.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130093"},"PeriodicalIF":4.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of a fluorine-free silane-based film on an aluminum alloy via drop-coating method with the purpose of providing hydrophobic and corrosion protection properties","authors":"Rafael G.C. da Silva ,&nbsp;Maria I.C. Malta ,&nbsp;Jedaías J. da Silva ,&nbsp;Walter L.C. da Silva Filho ,&nbsp;Janaína A. Cirino ,&nbsp;Sara H. de Oliveira ,&nbsp;Glória M. Vinhas ,&nbsp;Magda R.S. Vieira","doi":"10.1016/j.matchemphys.2024.130099","DOIUrl":"10.1016/j.matchemphys.2024.130099","url":null,"abstract":"<div><div>This work sought to developed a fluorine-free, water-repellent silane-based film on 5052 aluminum alloy by studying the incorporation of Hexadecyltrimethoxysilane (HDTMS) into or over the silica gel film to protect against corrosion in a saline environment. Additionally, the interface of the silane-based film was studied using liquids such as soybean oil, diesel oil, and lubricating oil. Silica gel particles were deposited by dripping a solution of silica gel using design of experiment approach. The porosity of the silica gel film was assessed employing the potentiodynamic polarization technique. The condition of the more cohesive silica gel film was chemically modified by dripping a low concentration solution of HDTMS. The functionalized film on the aluminum alloy exhibited a contact angle of 136°, oleophilic behavior for soybean oil and lubricating oil, and superoleophilic character for diesel oil. Notably, hydrophobic film exhibited chemical (acid, alkaline, saline) and thermal stabilities (50–150 °C). The protective effect of the functionalized film against corrosion ions was confirmed by Electrochemical Impedance Spectroscopy in a saline solution over 7 days. These results suggest a fluorine-free alternative approach for thin film development and the study of its multifunctionality, including enhanced corrosion resistance, water-diesel oil separation, and potential applications in anti-fouling.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"329 ","pages":"Article 130099"},"PeriodicalIF":4.3,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142571472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}