Journal of Alloys and Compounds最新文献

{"title":"Nanoarchitectonics with redox active site modulation in bimetallic MIL-125(Ti, Mn) MOF for enhanced supercapacitor performance","authors":"Kabir O. Otun,&nbsp;Ndeye F. Diop,&nbsp;Vusani M. Maphiri,&nbsp;Oladepo Fasakin,&nbsp;Vianney N. Kitenge,&nbsp;Souleymane Thior,&nbsp;Ncholu Manyala","doi":"10.1016/j.jallcom.2025.180753","DOIUrl":"10.1016/j.jallcom.2025.180753","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) with dual metal centres have received considerable attention as electrode materials for supercapacitor applications due to their redox-active sites and unique structural architecture. Herein, we present a simple one-step solvothermal approach to synthesize and optimize bimetallic MIL-125(Ti,Mn) MOF, where redox active site modulation enhances its electrochemical performance in asymmetric supercapacitors. The unique structure of MIL-125(Ti,Mn), featuring a spindle-like morphology anchored by flake-like sheets, facilitates interaction between active sites and electrolyte ions and modulates the redox active sites, leading to improved electrochemical performance. As such, the optimized MIL-125(Ti)-Mn-2 electrode demonstrates a high specific capacity of 137.2 mAhg⁻¹ at 1 A g^–1 and a capacity retention of more than 76.3 % after 5000 cycles. Furthermore, an asymmetric supercapacitor built with Mn-MIL-125(Ti)-2 and activated carbon achieved a high specific energy of 22.74 Wh kg^–1 at a specific power of 996 W kg^–1, while also demonstrating excellent stability with 71.2 % capacitance retention over 10,000 cycles at 10 Ag⁻¹. This one-pot incorporation strategy offers a novel route to modulate the structure of MIL-125(Ti) via Mn²⁺ doping for enhanced supercapacitor performance.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180753"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photo sensing properties of Zirconium doped Sn2S3 thin films grown by cost effective Nebulizer Spray Pyrolysis technique","authors":"A.M.S. Arulanantham, K.V. Gunavathy, C. Rangasami, P. Mohanraj, M.A. Sayed, Mohd. Shkir, A. Mani","doi":"10.1016/j.jallcom.2025.180781","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180781","url":null,"abstract":"Polycrystalline pure tin trisulfide (Sn₂S₃) thin films and Zr doped tin trisulfide thin films (doped with 2, 4, 6, 8, and 10<!-- --> <!-- -->wt% Zr) were fabricated using a cost-effective Nebulizer Spray Pyrolysis (NSP) method with improved opto electronic characteristics. These films were designed for integration into light-sensing devices due to their uniformity as a result of controlled doping. The orthorhombic crystal structure was observed in all samples and X-ray diffraction analysis revealed that all fabricated films were of polycrystalline nature. The crystallite size was found to increase up to 8<!-- --> <!-- -->wt% doping of Zr. Field emission scanning electron microscopy images indicate that the surface contains uniform spherical grains with their size varying with Zrdoping concentration. The band gap of the material increased with the introduction of more Zr into Sn₂S₃, but initially the optical band gap values decreased up to 8%. Photo-sensing tests revealed that the sensing characteristics of Zr doped Sn₂S₃ thin films enhanced up to 8% Zr doping after which they began to decline. The R, EQE and D* values were found to be 51.6×10^-2AW, 121% and 24.8×10⁹ Jones respectively, indicating the highest levels of responsiveness, external quantum efficiency and detectivity attained for 8% Zrdoping. The improved photodetection capability may be due to the reduced charge carrier recombination rates and appropriate crystallite size. The sample of Sn₂S₃ thin film that has 8<!-- --> <!-- -->wt% percent of Zr doping shows the maximum photocurrent. The present study suggests that doping Sn₂S₃ thin films with 8<!-- --> <!-- -->wt% Zr effectively enhances their properties, making them more suitable for optoelectronic applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"23 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements in particle-reinforced high-entropy alloy coatings: Microstructure, mechanical properties and mechanisms","authors":"Shuai Li ,&nbsp;Shuaizhe Ai ,&nbsp;Zhongying Liu ,&nbsp;Xingxing Wang ,&nbsp;Lei Zhou ,&nbsp;Tingting Wu ,&nbsp;Yanchao Bai","doi":"10.1016/j.jallcom.2025.180787","DOIUrl":"10.1016/j.jallcom.2025.180787","url":null,"abstract":"<div><div>High-entropy alloys have gained significant attention due to their advantageous properties, including high strength, hardness, wear and corrosion resistances, and thermal stability. These properties have positioned high-entropy alloys as a key focus in the development of advanced materials. Within the diverse research areas, high-entropy alloy coatings have been extensively studied for their outstanding overall performance. To further enhance mechanical properties and corrosion resistances of high-entropy alloy coatings, particle reinforcement has become a highly efficient and effective method for strengthening. The present study reviewed and analyzed recent advancements in particle-reinforced high-entropy alloy coatings, specifically focusing on reinforcements such as nitrides, carbides, oxides, etc. The review systematically examined the effects particle reinforcement on the grain size evolution and phase composition of high-entropy alloy coatings, focusing on coating preparation methods, particle addition techniques, and particle content. These factors were further analyzed to understand their influence on the mechanical properties of the coatings. Additionally, the present study highlighted current challenges and proposed future research directions. The primary objective was to establish a theoretical framework to guide the design and progress of particle-reinforced high-entropy alloy coatings.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180787"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra-high thermal conductivity Mg-based materials with upgrading reinforced efficiency via three-dimensional GF/CF network structure","authors":"Fanjin Yao, Zixin Li, Bo Hu, Zhenfei Jiang, Jiaxuan Han, Dejiang Li, Xiaoqin Zeng","doi":"10.1016/j.jallcom.2025.180775","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180775","url":null,"abstract":"The proposal for second-generation magnesium (Mg) matrix thermal management materials creates opportunities to further enhance the thermal conductivity of Mg alloys (surpassing that of pure Mg). Yet, the formidable challenge is the unsatisfactory reinforced efficiency of reinforcements. Herein, the three-dimensional GF (graphite flake)/CF (carbon fiber) continuous network structure in the Mg-2.10Nd-0.36Zn-0.06Zr alloy matrix was constructed by the differential stir casting and subsequent direct extrusion process. The microstructure of the GF/CF Mg-based materials with diverse GF diameters was characterized at multiple scales. The three-dimensional GF/CF continuous network structure was established when the GF diameters reached 150 μm. The in-situ formation of Nd₂O₃ effectively filled the interface, which ameliorated the interfacial bonding and ensured the continuous transmission of heat flow. The Mg-based materials with the three-dimensional GF/CF continuous network structure demonstrated an ultra-high thermal conductivity of 171<!-- --> <!-- -->W/(m·K) with an outstanding reinforced efficiency of 64.4% and a low density of 1.85<!-- --> <!-- -->g/cm³. This performance represents the pinnacle of comprehensive heat conduction among Mg-based materials reported to date. The heat-conduction behaviors were demonstrated thoroughly through diverse thermal conductivity models and actual microstructural finite element (FE) simulations. This research proposes a promising methodology towards the ultra-high thermal conductivity Mg-based materials with remarkable reinforced efficiency and lightweight properties, which contributes to the development of advanced second-generation Mg-based thermal management materials.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"23 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"La2O3-carbon black-polypyrrole: a synergistic ternary composite for advanced supercapacitor electrodes","authors":"G Aryadevi, Gopika G Nair, Geethu Joseph, Veena Rose Mathew, Preema C Thomas, Jose Sebastian, Alex Joseph, Ginson P Joseph","doi":"10.1016/j.jallcom.2025.180759","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180759","url":null,"abstract":"Electrochemical supercapacitors allure greater recognition owing to their exceptional safety and power density. This study explores the suitability of a ternary composite comprising La₂O₃ and carbon black nanoparticles dispersed in a polypyrrole (PPy) matrix for developing supercapacitor electrodes. Investigations on the impact of the nanomaterials in polypyrrole composites on the performance of the electrodes were carried out by varying the amount of La₂O₃ while fixing the amount of carbon black and vice versa. A simple chemical route of in-situ polymerization was adapted for synthesizing the composites, and X-ray Photoelectron Spectroscopy (XPS) analysis confirmed the successful incorporation of the nanofillers. Among all the synthesized samples, the polypyrrole composite consisting of 10% carbon black and 4% La₂O₃ (PCL4) demonstrated the highest specific capacitance of approximately 2800<!-- --> <!-- -->F/g. The substantial amount of carbon black could improve the specific capacitance of the composite and hence enhance its electrochemical performance. The incorporation of La₂O₃ emphatically enhanced the thermal stability and reduced dielectric loss, whereas carbon black improved the dielectric properties of the composites. The nanofillers synergistically increased the active surface area of the electrode material, and the composite could achieve a maximum energy density of ~ 250<!-- --> <!-- -->Wh/kg, hence suggesting that polypyrrole/ La₂O₃/carbon black ternary composite is a promising candidate for fabricating supercapacitor electrodes.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"98 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D volcanic-rock-like structure of Co-doped Ni/MoNi4 heterostructure with corallite pattern surface as bifunctional electrocatalysts for urea-assisted water splitting","authors":"Bingxin Zhao ,&nbsp;Yuxin Zhao ,&nbsp;Wenyue Jiang ,&nbsp;Ziting Li ,&nbsp;Peng Zhou ,&nbsp;Jinping Wang ,&nbsp;Rui Yang ,&nbsp;Chunling Zuo ,&nbsp;Xiaoshuang Chen","doi":"10.1016/j.jallcom.2025.180756","DOIUrl":"10.1016/j.jallcom.2025.180756","url":null,"abstract":"<div><div>The key to the design of energy-efficient hydrogen production system lies in the development of highly catalytic, low-cost and non-precious metal catalysts. Meanwhile, the replacement of great-energy-consuming oxygen evolution through the reactions involving small molecules is easily oxidizable at the anode. Herein, we report the multicomponent intermetallic of Co-doped Ni/MoNi₄ (Co-Ni/MoNi₄) heterostructure, which is directly integrated on conductive nickel foam as an urea-assisted water splitting electrocatalyst. The Co-Ni/MoNi₄ product possesses 3D volcanic-rock-like architecture with multideck and scabrous corallite pattern surface, which presents satisfactory electrocatalysis in water splitting territory. It demonstrates a low overpotential of 46.8 mV to achieve the current density of 10 mA cm⁻² for hydrogen evolution reaction (HER), and showcases a potential of 1.33 V for urea oxidation reaction (UOR) at 10 mA cm⁻². The Tafel slopes of HER and UOR for Co-Ni/MoNi₄ are 72.2 and 29.1 mV dec⁻¹, respectively. What's more, the Co-Ni/MoNi₄ couple electrolyzer only requires a cell voltage of 1.40 V to attain 10 mA cm⁻² and exhibits good stability for urea electrolysis.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1029 ","pages":"Article 180756"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asymmetric photo-assisted supercapacitor and symmetric flexible supercapacitors based on CeO2-MnO2 supported on carbon cloth","authors":"Mohamad Mohsen Momeni, Fatemeh Mohammadinejad, Farzaneh Ghasemipur, Byeong-Kyu Lee","doi":"10.1016/j.jallcom.2025.180761","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180761","url":null,"abstract":"In this study, a simple one-step hydrothermal method was developed to synthesize ceria-manganese oxide nanoparticles on carbon cloth (CeM/CC) that exhibit excellent supercapacitive properties. The structures, morphologies, and electrochemical properties of the produced materials were characterized in various tests. In addition, we fabricated two types of supercapacitors for the first time: a symmetric flexible supercapacitor (SFSC) and an asymmetric photo-assisted supercapacitor (APSC), both based on the optimal cerium manganese oxide sample on carbon cloth. The SFSC was constructed with CeM-50:50 electrodes as positive and negative electrodes and PVA-Na₂SO₄ as gel polymer electrolyte. The APSC was assembled with a CeM-50:50/CC electrode and a CeM-50:50/FTO photoelectrode as the photosensitive component. The fabricated SFSC device exhibited a maximum energy density of 0.024 mWh/cm³ at a power density of 0.306<!-- --> <!-- -->mW/cm³ and showed exceptional flexibility and long-term durability with a capacity retention of more than 95% over 4000 charge/discharge cycles. The specific capacitance of the photo-assisted ASC is higher in light, showing a significant increase in areal capacitance (4.80 mF/cm²) compared to dark conditions (2.78 mF/cm²) at the same current density. This is the first report of a simple and successful fabrication of flexible supercapacitors and photo-assisted supercapacitors based on CeM/CC for photoelectrochemical energy storage systems. These light-sensitive devices offer significant opportunities to improve the use of solar energy and optimise energy storage applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"55 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of CNT-referenced FeVO4 as a catalyst on the hydrogen absorption and desorption characteristics of MgH2","authors":"Ruoyang Zhang, Haohua Zhang, Weiqi Sun, Zhicheng Yang, Xia Lin, Wenwei Guo, Yi Liu, Zhengyi Liang, Bin li, Lixian Sun, Ting Yu, Fen Xu","doi":"10.1016/j.jallcom.2025.180767","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180767","url":null,"abstract":"Magnesium hydroxide has garnered significant interest in recent years due to its outstanding hydrogen storage capabilities, favorable reversibility, and cost-effectiveness. Nonetheless, high thermodynamic stability and slow reaction kinetics have restricted its practical utilization. To enhance the hydrogen storage efficiency of MgH₂, a new bimetallic oxides oxide-doped CNT catalyst, FeVO₄/CNT, was synthesized through hydrothermal and calcination processes to improve its catalytic activity. Doping MgH₂ with 6<!-- --> <!-- -->wt.% FeVO₄/CNT significantly reduced its dehydrogenation temperature to 198 °C, compared with 287.6 °C for untreated MgH₂. The FeVO₄/CNT-catalyzed MgH₂ sample achieved a hydrogen desorption of 4.11<!-- --> <!-- -->wt.% within 30<!-- --> <!-- -->min at 285 °C, while hydrogen absorption reached 6.02<!-- --> <!-- -->wt.% at a reduced temperature of 150 °C. Calculations using the Kissinger method indicated that the activation energy for the FeVO₄/CNT-catalyzed dehydrogenation reaction of MgH₂ was reduced to just 95.2<!-- --> <!-- -->kJ/mol, compared with 141.8<!-- --> <!-- -->kJ/mol for untreated MgH₂. Through fitting of the kinetic model calculation, this study showed that the hydrogen storage system can improve its hydrogen absorption efficiency by adding an FeVO₄/CNT catalyst to control the rate and change from a permeation model to a diffusion model. The study further reveals that the MgH₂-6FeVO₄/CNT composite forms in-situ V and Fe nanoparticles during ball milling, which remain structurally stable throughout subsequent hydrogenation/dehydrogenation cycles. The in-situ generated V and Fe nanoparticles contributed to sustained hydrogen release properties over 10 cycles, demonstrating 94% retention of initial dehydrogenation capacity.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"14 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An ultrasensitive optical fiber SPR sensor enhanced by functionalized carbon quantum dots for Fe3+ measurement","authors":"Youquan Zhou, Xiaoyu Huang, Binyun Xia, Xiaohan Chen, Xinyue Jing, Ning Wang, Jinhua Li","doi":"10.1016/j.jallcom.2025.180784","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180784","url":null,"abstract":"Precise detection of ferric ions (Fe³⁺) plays a critical role in maintaining biological homeostasis, ensuring industrial process quality control, and safeguarding ecological safety. Recently, various detection methods and sensors have been widely developed for measuring Fe³⁺, but the tradeoff between their performance and practical applications has not been achieved, such as high sensitivity, excellent specificity, simple structure and fabrication, low cost, and so on. In this study, an optical fiber SPR sensor was developed sensor for detecting Fe³⁺ based on the multimode-coreless-multimode (MNM) structured optical fiber. The refractive index (RI) sensitivity of the MNM fiber coated with a 60<!-- --> <!-- -->nm Au film modified with gold nanoparticles (AuNPs) reached 3440.45<!-- --> <!-- -->nm/RIU. The organic groups functionalized carbon quantum dots (CQDs) were synthesized and immobilized onto the Au substrates for specifically trapping Fe³⁺, which will cause the variation of the effective RI around the fiber, thereby resulting in the SPR wavelength shift in the transmission spectrum. By recording the red shift of the SPR wavelength, the amount of Fe³⁺ could be accurately quantified. Upon detection of Fe³⁺, the sensor was demonstrated with great linearity within a wide detection range of 10^-12 to 10^{-2<!-- -->}M. The sensor’s sensitivity was obtained to be about 2.07<!-- --> <!-- -->nm/lg (M) and its limit of detection (LOD) was calculated to be about 2.88 × 10^{-13<!-- -->}M. It was also experimentally proved with excellent selectivity and stability, as well as the potential application in simulated real samples. The proposed sensing platform offered a simple configuration for Fe³⁺ detection with excellent performance and had various potential practical applications such as health monitoring, disease diagnosis, dietary planning, medication treatment monitoring, environmental monitoring, etc.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"28 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Characterization of Porous Silica Structures based on Phase Separation of Borosilicate Glasses Containing ZrO2, TiO2, MoO3","authors":"Mohammad Reza Taghavinik, Zohreh Hamnabard, Mohammad Masoud Mohebi","doi":"10.1016/j.jallcom.2025.180763","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180763","url":null,"abstract":"In this study, researchers prepared porous glasses through the phase separation of a borosilicate-based glass composition. Subsequently, the team employed a conventional melting method to synthesize the glasses. Heat treatment of alkali borosilicate glass samples caused phase separation, resulting in two distinct phases: a silicon-rich phase and a boron-rich phase. This study examined phase-separated glassy samples under leaching conditions. In the subsequent stage of the study, the team investigated and compared the phase separation process, as well as the size and morphology of the resulting pores, in the presence of TiO₂, ZrO₂, and MoO₃ additives. The analysis of the glass samples utilized X-ray diffractometry (XRD), Scanning electron microscopy (SEM), Differential scanning calorimetry (DSC), and Brunauer-Emmett-Teller (BET) techniques. The results indicated that the highest porosity occurred in the samples containing 1.5% mol of ZrO₂ and 2.5% mol of MoO₃, with three and two acid-leaching steps, respectively. The highest and lowest specific surface areas were related to 1.5%mol ZrO₂ (three and two steps acid-leached). This low specific surface is attributed to the deposition of colloidal particles within the structure and the formation of cracks during the acid-leaching process. The porous glass containing ZrO₂ with an average pore diameter in the range of 4<!-- --> <!-- -->nm, acid-leached in three controlled steps with the highest specific surface area reported among the rest of the samples, was considered sufficiently high and practical.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"281 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}