Journal of Science: Advanced Materials and Devices最新文献

{"title":"Recycling waste for energy: Reusing methyl orange dye-adsorbed polythiophene/Fe3O4 nanorods/reduced graphene oxide nanocomposite as a supercapacitor electrode","authors":"Ahmad Husain ,&nbsp;Asim Ali ,&nbsp;Sara A. Alqarni ,&nbsp;Khalid Ansari ,&nbsp;Mohtaram Danish ,&nbsp;Prem Gunnasegaran ,&nbsp;Mohammad Kanan ,&nbsp;Jayant Giri ,&nbsp;M. Kandasamy ,&nbsp;M.M.A. Khan ,&nbsp;Kyeong Tae Kang","doi":"10.1016/j.jsamd.2025.100865","DOIUrl":"10.1016/j.jsamd.2025.100865","url":null,"abstract":"<div><div>This study presents a sustainable waste-to-wealth approach by repurposing methyl orange (MO) dye-adsorbed polythiophene/iron oxide/reduced graphene oxide nanocomposite (PTh/Fe₃O₄/RGO) for dual functionality in wastewater treatment and energy storage. PTh/Fe₃O₄/RGO nanocomposite was initially employed as an effective adsorbent to remove harmful MO dye from wastewater. After successful adsorption, the dye-saturated PTh/Fe₃O₄/RGO was repurposed as a supercapacitor electrode to investigate its energy storage capabilities. Electrochemical tests before MO adsorption revealed that the pristine PTh/Fe₃O₄/RGO electrode demonstrated promising performance with a specific capacitance of 467.3 Fg⁻¹ at 1 Ag⁻¹ and excellent cyclic stability of 95.3% retention over 5000 Galvanostatic charge-discharge (GCD) cycles. Further, the maximum adsorption of MO by the PTh/Fe₃O₄/RGO was achieved under optimal conditions: pH 3, 2.5 gL⁻¹ dosage, 120 min contact time, and 50 mgL⁻¹ MO concentration. The adsorption behaviour was well-explained by the Langmuir isotherm, pseudo-second-order kinetics, and Dubinin-Radushkevich (D-R) isotherm, indicating a physical adsorption process with a monolayer capacity of 151.34 mgg⁻¹. Thermodynamic analysis, with a positive enthalpy (ΔH°) and negative Gibbs free energy (ΔG°), confirmed that the process is endothermic and spontaneous. Desorption studies showed that 88.72% of the MO could be desorbed in the first cycle, with effective regeneration up to six cycles using NaOH. Post-adsorption, the material still retained significant supercapacitor properties, with a specific capacitance of 380.9 Fg⁻¹ at 1 Ag⁻¹ and 83.2% cyclic stability over 5000 GCD cycles. This study demonstrates a circular, sustainable approach that integrates waste treatment with energy storage, highlighting the potential of reusing materials for multifunctional applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100865"},"PeriodicalIF":6.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429792","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":"Development, exploration and optimization of porous titanium and titanium alloys: A review","authors":"Baoguang Zhang,&nbsp;Kun Yang,&nbsp;Lei Shen,&nbsp;Xingyu Duan,&nbsp;Shaoyang Zhao,&nbsp;Wenbin Gao,&nbsp;Chenyang Xu,&nbsp;Jian Wang","doi":"10.1016/j.jsamd.2025.100863","DOIUrl":"10.1016/j.jsamd.2025.100863","url":null,"abstract":"<div><div>As an integrated material of structure and function, porous titanium (Ti) and Ti alloys with a porosity of (10–95%) processes a wide application prospect in many fields. However, they still faced some issues, including the design and optimization of pore structure, the improvement of service performance, and the exploration of unique applications. To provide valuable insights into addressing these issues, the recent advances in porous Ti and Ti alloys have been reviewed systematically. Firstly, the manufacturing technologies for porous Ti and Ti alloys were expounded and objectively evaluated, with a focus on comparing the corresponding pore structures and mechanical properties. Besides, the current applications corresponding mechanisms, and characteristics of porous Ti and Ti alloys were introduced in detail. Finally, as key factors determining the performance and functions of porous Ti and Ti alloys, the design and optimization of pore structure and doping modification were emphatically summarized and discussed.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100863"},"PeriodicalIF":6.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396028","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":"Enhanced wound healing with flaxseed extract-loaded polyvinyl alcohol nanofibrous scaffolds: Phytochemical composition, antioxidant activity, and antimicrobial properties","authors":"Ahmed G. Abdelaziz ,&nbsp;Hassan Nageh ,&nbsp;Mohga S. Abdalla ,&nbsp;Sara M. Abdo ,&nbsp;Asmaa A. Amer ,&nbsp;Samah A. Loutfy ,&nbsp;Ali Alsalme ,&nbsp;David Cornu ,&nbsp;Mikhael Bechelany ,&nbsp;Ahmed Barhoum","doi":"10.1016/j.jsamd.2025.100862","DOIUrl":"10.1016/j.jsamd.2025.100862","url":null,"abstract":"<div><div>This study aimed to develop and optimize composite nanofibrous scaffolds for enhanced wound healing and antimicrobial applications. Polyvinyl alcohol (PVA) nanofibers loaded with ethanolic flaxseed extract were fabricated via solution electrospinning. The methodology focused on optimizing key parameters, including polymer-to-extract ratio, swelling ratio, hydrolytic degradation, and nanofiber mean diameter, to achieve superior scaffold properties. The optimized scaffold, with a PVA-to-flaxseed extract weight ratio of 70:30 (PV70:FS30), exhibited bead-free morphology and a mean fiber diameter of 319 nm (compared to 175 nm for pure PVA fibers). PV70:FS30 scaffolds demonstrated significant antimicrobial activity, effectively inhibiting both Gram-negative and Gram-positive bacterial growth. Moreover, human melanocyte (HBF-4) viability and wound healing rates were substantially higher on PV70:FS30 scaffolds than on pure PVA fibers (viability: 122.3% vs. 91.2%; wound closure at 48 h: 97.3% vs. 69.6%, relative to control). However, cell adhesion was lower on PV70:FS30 scaffolds (93 cells/section vs. 183 cells/section for PVA nanofibers) due to increased cross-linking and reduced hydrophilicity from flaxseed extract incorporation. These findings indicate a clear interplay between flaxseed extract concentration and scaffold morphology, highlighting their potential for advancing skin tissue engineering applications. These results provide insights into designing nanofibrous scaffolds for improved wound healing and antimicrobial properties.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100862"},"PeriodicalIF":6.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403413","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":"Magnetically tunable 4 × 2 encoder utilizing Terfenol-D-embedded phononic crystal ring resonators","authors":"Ehsan Mehdizadeh Omrani,&nbsp;Fakhroddin Nazari","doi":"10.1016/j.jsamd.2025.100861","DOIUrl":"10.1016/j.jsamd.2025.100861","url":null,"abstract":"<div><div>The research nominates an innovative magnetically tunable 4×2 encoder structure that utilizes ring resonators and Terfenol-D tubes embedded inside a robust phononic crystal made of solid materials. The proposed method takes advantage of the variable magnetic field strengths of Terfenol-D in the MHz frequency spectrum through wave interference techniques. The encoder system is designed as a two-dimensional phononic crystal, using poly methyl methacrylate as the foundational material, and integrates a square arrangement of circular tungsten tubes. The encoder features an ultra-compact footprint of 125 × 10^-6 m², with four input waveguides and two output waveguides, each equipped with a pair of ring resonators. The smaller cavities are coupled with curved two-branch waveguides, optimizing wave interference while minimizing losses and scattering to achieve enhanced performance. Each ring resonator incorporates three integrated Terfenol-D tubes, which modulate their Young's modulus properties. The symmetrical design of the structure enables the generation of distinct resonant frequencies under varying magnetic field intensities. The resonance frequencies of the ring resonators, along with the dynamic adjustment of the Terfenol-D cylinders, significantly influence the encoder's operational efficiency and tunability. Tunability experiments are conducted for three distinct Young's modulus values of Terfenol-D, corresponding to three various magnetic fields, resulting in resonance frequencies of 1.7388 MHz, 1.7389 MHz, and 1.7390 MHz. The encoder's performance was assessed through the application of the finite element method, yielding an average contrast ratio of 10.16 dB. This proposed encoder offers a straightforward and effective solution for acoustic communication systems and networks, demonstrating significant potential for practical applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100861"},"PeriodicalIF":6.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422072","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":"Effect of microstructure and mechanical properties of Al/Mg dissimilar alloy with Pb interlayer by friction stir welding","authors":"Bofang Zhou ,&nbsp;Haiao Feng ,&nbsp;Zixuan Leng ,&nbsp;Hongxia Zhang","doi":"10.1016/j.jsamd.2024.100845","DOIUrl":"10.1016/j.jsamd.2024.100845","url":null,"abstract":"<div><div>Combining aluminum/magnesium(Al/Mg) dissimilar alloys has great potential for realizing automotive lightweighting. The microstructure and mechanical properties of Al/Mg dissimilar alloy with stir-pin rotation speed and thickness of the Pb foil intermediate layer by friction stir welding are investigated. The experimental results indicate that the ideal joints can be obtained with the stir-pin rotation speed of 800∼1100 rpm when the welding speed is 30 mm/min. The intermetallic compounds in the weld nugget zone are mainly composed of Mg₁₇Al₁₂ and Mg₂Al₃. The tensile strength of the joint increases first and then decreases with the increase of the stir-pin rotation speed, reaching a maximum of 168 MPa at 1000 rpm. By introducing Pb foil as an interlayer in the friction stir welding of Al/Mg dissimilar alloys, based on the optimum process parameters for joining Al/Mg without an interlayer, the thickness of the Pb foil interlayer was varied in the range of 0⁓0.2 mm. The intermetallic compounds in the weld nugget zone of the joint are mainly composed of Mg₂Pb and Mg₁₇Al₁₂. The tensile strength of the joint initially increases and then decreases with the increase in the thickness of the Pb foil intermediate layer, reaching a maximum of 193 MPa at the thickness of 0.1 mm under the welding speed is 30 mm/min and the stir-pin rotation speed is 1000 rpm, which is 15% higher than the strength of Al/Mg joints without an interlayer, and accounts for 70% of the AZ31B base material strength.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100845"},"PeriodicalIF":6.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429790","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":"Guar gum-modified magnetic palladium nanocatalyst: C–N coupling reaction and STAT3-Mediated breast cancer therapy","authors":"Junrui Luan ,&nbsp;Xin Dong ,&nbsp;Shuwen Zhou","doi":"10.1016/j.jsamd.2025.100852","DOIUrl":"10.1016/j.jsamd.2025.100852","url":null,"abstract":"<div><div>The present study explains the unmoved synthesis of Pd nanoparticle-decorated guar gum utilized as Fe₃O₄ NPs (Fe₃O₄@guar gum/Pd NPs), the resultant catalytic and biological applications within the context of an eco-friendly procedure. FT-IR, FE-SEM, TEM, EDS, and so on are some of the methods applied to evaluate the constructional and physicochemical features of such an unequaled substance. After the characterization of the process, we successfully used the prepared Fe₃O₄@guar gum/Pd NPs in the <em>N</em>-arylation of indole across C(aryl)-N bond formation from the pertaining haloarens (I, Br, Cl) through Ullmann-type coupling reactions. In addition, the new accelerator bears the ability to be recuperated and recycled 7 times. The MTT test was then used to investigate the extent to which Fe₃O₄@guar gum/Pd NP-treated cells suppressed human breast cancer. Healthy (HUVEC) and breast cancer cells, specifically MCF-10, were used for the evaluation. The Fe₃O₄@guar gum/Pd NPs showed an IC₅₀ value of 62 μg/mL against MCF-10, respectively. The presence of the material resulted in a 40–50% induction of cell apoptosis, along with down regulation of the anti-apoptotic marker. Finally, the Fe₃O₄@guar gum/Pd NPs showed suppressive properties on colony formation. According to our research, the Fe3O4@guar gum/Pd NPs can decrease STAT3 expression in the treated cells while increasing p53 levels. The effect of Fe₃O₄@guar gum/Pd NPs on human breast cancer cells demonstrates how important p53 and STAT3 are to the ensuing biological consequences. According to these findings, Fe₃O₄@guar gum/Pd NPs have a lot of promise as a therapy for human breast cancer cells.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100852"},"PeriodicalIF":6.7,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143203208","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":"Ephedra extract-mediated gold nanoparticles on Kaolin: A natural approach for reduction and stabilization, with evaluation of antioxidant and anti-ovarian cancer activities","authors":"Hui Yang ,&nbsp;Cui Wang ,&nbsp;Qingjiang Wang ,&nbsp;Feng Han","doi":"10.1016/j.jsamd.2025.100853","DOIUrl":"10.1016/j.jsamd.2025.100853","url":null,"abstract":"<div><div>A straightforward, efficient, and environmentally friendly method has been developed to synthesize gold nanoparticles (Au NPs) supported on kaolin with no harmful additives, ephedra flower extract acts as a biogenic stabilizing and reducing agent. An analysis of the Au NPs/Kaolin composite's structural properties was conducted using FE-SEM, TEM, EDX, and XRD assays. The biological activity of the composite was evaluated through cytotoxicity tests using the MTT assay. In addition, its potential anti-ovarian cancer properties were tested against several ovarian cancer cell lines, including TOV-21G, OV-90, SW 626, and UWB1.289, with IC50 values found to be 112, 250, 278, and 243 μg/mL, respectively. The ovarian cancer cell lines showed a dose-dependent decline in % cell viability. The HUVEC cell line was also used to evaluate the material's biocompatibility with normal cells. Based on the results, the bio-composite material is found promising as a therapeutic agent for treating human ovarian cancer.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100853"},"PeriodicalIF":6.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137617","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":"Synergistic photothermal conversion and visible-light photodegradation of antibiotic in S-type TiO2 derived Ti3C2-MXene loaded on NaYF4: Tm3+, Er3+, Yb3+ @BiOI","authors":"Seyyedeh Fatemeh Hosseini ,&nbsp;Mir Saeed Seyed Dorraji ,&nbsp;Shiva Mohajer ,&nbsp;Seyedeh Narges Saeedi ,&nbsp;Masoumeh Kianfar ,&nbsp;Alexandr V. Koshelev ,&nbsp;Nataliya A. Arkharova ,&nbsp;Denis N. Karimov","doi":"10.1016/j.jsamd.2025.100851","DOIUrl":"10.1016/j.jsamd.2025.100851","url":null,"abstract":"<div><div>Here, the collaboration of photocatalysis and photothermal conversion has been defined as an efficient strategy for converting unusable near-infrared (NIR) light to operational ultraviolet–visible (UV–vis) photons. For this, a new heterostructured photocatalyst NaYF₄: Tm³⁺, Er³⁺, Yb³⁺ @ BiOI was successfully synthesized using a simple hydrothermal approach paired with electrostatic self-assembly. The results show that BiOI can indirectly use the NIR portion to produce electron-hole pairs due to the presence of upconversion nanoparticles (UCNPs). On the other hand, loading TiO₂ derived Ti₃C₂ MXenes on NaYF₄: Tm³⁺, Er³⁺, Yb³⁺ @ BiOI increased tetracycline (TC) degradation to 36% and 90%, compared to narrow band gap BiOI, within 120 min under NIR light irradiation and sunlight irradiation, respectively. Moreover, the reaction rate of UCNP@BiOI@TiO₂–Ti₃C₂ was found to be 2.85 times higher under sunlight compared to NIR. It can be attributed to the synergistic photocatalytic and photothermal effects triggered by NIR light. In addition, the broad photoresponse range of TiO₂ and the Schottky junction formed by Ti₃C₂ MXenes between TiO₂ and BiOI facilitate charge separation while reducing photo-generated electron-hole pair recombination. The reduced recombination rate in the synthesized heterojunction was further substantiated by the larger photocurrent response and smaller EIS arc. Excellent catalytic activity is explained by the S-scheme mechanism, which produces holes at the valence band and superoxide radicals at the conductive band in the BiOI and Ti₃C₂, respectively. Significantly, the cycling results demonstrated that the photocatalysts had the requisite reusability and recyclability for real-world applications. The cooperative MXene and UCNPs utilized in this study provide a helpful basis for the logical design of full-spectrum photocatalysts.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100851"},"PeriodicalIF":6.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143203651","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":"Fabrication of highly efficient quartz crystal microbalance ammonia sensor based on Cu-BTC nanocomposites","authors":"Kobra Vazirinezhad ,&nbsp;Fatemeh Shariatmadar Tehrani ,&nbsp;Sedigheh Zeinali ,&nbsp;Maryam Tohidi","doi":"10.1016/j.jsamd.2025.100850","DOIUrl":"10.1016/j.jsamd.2025.100850","url":null,"abstract":"<div><div>Today, the measurement of ammonia gas as a corrosive and irritating gas in the environment is very crucial. Therefore, a simple and efficient method for its detection is very important. A quartz crystal microbalance (QCM) gas sensor modified with porous nanomaterials is proposed as a new device with high performance at ambient temperature. Metal-organic frameworks (MOFs), as a type of nanoporous material, have attracted great attention in the field of gas sensing due to their unique properties, such as high adsorption sites for gas molecules compared to other conventional sensing materials. In this work, nanocomposite films of Cu-BTC (MOF containing copper as a metal node and 1,3,5-benzene tricarboxylic acid as an organic linker) with different carbon nanotube (CNT) weight percentages are fabricated on a QCM for the detection of low amounts of ammonia at room temperature. The size and morphology, chemical, crystalline structure, and porosity properties of the synthesized Cu-BTC and Cu-BTC/CNT nanocomposites were examined by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and BET techniques, respectively. All Cu-BTC/CNT nanocomposites showed a higher response and sensitivity to ammonia gas than both Cu-BTC and CNT individually. In this work, the best sensing behavior is observed in Cu-BTC/CNT10 nanocomposite, with a sensitivity of 8.18 Hz ppm⁻¹^, a limit of detection (LOD) of 1.97 ppm, and a limit of quantification (LOQ) of 6.57 ppm in exposure to ammonia vapors. This sensor exhibited good repeatability and reversibility, reasonable selectivity towards other volatile organic compounds (VOCs)<strong>,</strong> and long-term stability during 7 weeks of testing.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100850"},"PeriodicalIF":6.7,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137618","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":"Thermophysical properties enhancement of KNO3–NaNO3–NaNO2 mixed with SiO2/MgO nanoparticles","authors":"Baiyuan Tian ,&nbsp;Chuang Zhu ,&nbsp;Manting Gu ,&nbsp;Minhao Xu ,&nbsp;Wenxuan He","doi":"10.1016/j.jsamd.2025.100849","DOIUrl":"10.1016/j.jsamd.2025.100849","url":null,"abstract":"<div><div>This study aims to discover innovative thermal storage materials that fulfill the specifications of concentrated solar power systems. Thermal storage materials based on ternary eutectic (Hitec) with nano-SiO₂ and nano-MgO are investigated. Simultaneous thermal analysis and laser flash analysis are used to study the main properties of materials. The results indicate that the inclusion of nano-SiO₂ and nano-MgO reduces the melting point while enhancing the latent heat of the base salt. Doping the base salt with 0.3 wt% nano-SiO₂ and 0.7 wt% nano-MgO results in molten salt nanocomposites with an average specific heat of 2.16 J/(g⋅K), which is 54.3% higher than that of the base salt. This surpasses the specific heat of the base salt mixed with a single type of nanoparticle. The thermal conductivity of this nanocomposite is increased by 13.13% to 0.836 W/(m⋅K) compared to the base salt. Furthermore, this study demonstrated that the effect of interfacial thermal resistance on specific heat capacity and heat transfer characteristics is the opposite. While the nanoparticles can increase the specific heat capacity of the molten salt, they can also reduce the heat transfer rate within this material.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 2","pages":"Article 100849"},"PeriodicalIF":6.7,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143203534","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}