Advanced Powder Technology最新文献

{"title":"Inside Front Cover (Aims & Scope, Editors)","authors":"","doi":"10.1016/S0921-8831(25)00141-4","DOIUrl":"10.1016/S0921-8831(25)00141-4","url":null,"abstract":"","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 6","pages":"Article 104920"},"PeriodicalIF":4.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical analysis of particle shape influence on erosion and flow behavior in a 90-Degree elbow pipe under Solid-Liquid flow","authors":"Eman Yasser ,&nbsp;Ling Zhou ,&nbsp;Mahmoud A. El-Emam","doi":"10.1016/j.apt.2025.104928","DOIUrl":"10.1016/j.apt.2025.104928","url":null,"abstract":"<div><div>In this study, an investigation was conducted to examine the influence of particle shape on erosion behavior in curved pipe systems, a critical component in fluid-conveying systems. A combination of numerical and experimental methodologies was utilized, employing the discrete phase model (DPM) and a coupled computational fluid dynamics-discrete element method (CFD-DEM) to simulate particle–fluid interactions within a 90° elbow pipe. The simulations explored how non-spherical particles, shaped with different degrees of corner sharpness, influence erosion rates, particle dynamics, and localized wear patterns. Experimental observations revealed that maximum erosion was concentrated at the outlet region, where the interaction between particle flow dynamics and pipe geometry intensified localized wear. The erosion rates predicted by numerical DPM simulations were overestimated, particularly in the outlet zone, highlighting the model’s limitations in accurately capturing particle interactions. In contrast, a more accurate representation of localized erosion patterns was provided by CFD–DEM simulations, particularly when non-spherical particles were incorporated. It was demonstrated that angular particles with fewer corners caused more concentrated wear due to higher impact forces, whereas particles with more corners distributed forces more evenly, resulting in less severe erosion. Additionally, Higher particle velocities and kinetic energy intensified impact forces, exacerbating wear, while drag and pressure gradient forces shaped particle trajectories, localizing erosion on the elbow’s outer wall. By integrating these findings, the importance of accounting for particle shape and system geometry in erosion prediction models was emphasized. It was established that the CFD–DEM approach, mainly when applied to non-spherical particles, is reliable for predicting wear in complex geometries, providing valuable insights for designing more durable fluid-conveying systems.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104928"},"PeriodicalIF":4.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Through carbon coating to significantly boost the electrochemical performance of nickel oxide","authors":"Weidong Nie,&nbsp;Jing Li,&nbsp;Yuanyuan Liu,&nbsp;Meiri Wang,&nbsp;Kaihua Liu,&nbsp;Hongtao Cui","doi":"10.1016/j.apt.2025.104926","DOIUrl":"10.1016/j.apt.2025.104926","url":null,"abstract":"<div><div>NiO is a conventionally low performance electrode material for supercapacitors, especially its extremely low cycling stability. The effect of so far strategies including combination with carbon materials, cobalt ions-doping, and formation of nanostructure for improving the performance of NiO are proven limited. Therefore, it is reasonable to infer that the acknowledged electrochemical mechanism about NiO exists a deviation from the actual situation. In this work, we try to use a synergistic strategy of carbon coating and cobalt ions-doping to obtain the high performance NiO. The investigation results prove that the low cycling stability of NiO originates from its dissolution–recrystallization behavior instead of the acknowledged mechanism of stress-induced structure collapse. The carbon coating and cobalt ions-doping improve the external electron transfer property of NiO and its intrinsic electrical conductivity respectively, thus promoting its electro-activity. Consequently, the modified NiO achieves a high specific capacity of 460.8C g⁻¹ at low current density of 2.0 A g⁻¹ and keeps a high capacity retention of 61.8 % at high current density of 39.3 A g⁻¹. On the other hand, the carbon coating suppresses the dissolution–recrystallization behavior of NiO by its physical hindrance effect, leading to the promotion of its cycling stability from &lt; 10,000 to 80,000 cycles. The results in this work demonstrates the key role of carbon coating in significantly boosting the performance of NiO.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104926"},"PeriodicalIF":4.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clean and efficient recovery of aluminum from aluminum-silicon alloy scrap by electrorefining using AlCl3-urea deep eutectic solvent","authors":"Shuxian Wang ,&nbsp;Anan Song ,&nbsp;Cunying Xu ,&nbsp;Jianru Li ,&nbsp;Yixin Hua ,&nbsp;Yan Li ,&nbsp;Qibo Zhang","doi":"10.1016/j.apt.2025.104927","DOIUrl":"10.1016/j.apt.2025.104927","url":null,"abstract":"<div><div>The upcycling of aluminum–silicon alloy scrap by electrorefining in AlCl₃-urea DES at near room temperature was studied. The electrochemical behavior of impurity metals and aluminum was analyzed using the measurement of polarization curves. The result showed that the anodic dissolution of Al, Mn, Zn, Pb, Cu, Fe, Ni, and Si occurred at 0, 0.03, 0.21, 0.27, 0.60, 0.65, 0.87, and 1.65 V (vs. Al(Ⅲ)/Al) in AlCl₃-urea DES, indicating that the anodic dissolution potential of metals in aluminum–silicon alloy in AlCl₃-urea DES was in the order of Al &gt; Mn &gt; Zn &gt; Pb &gt; Cu &gt; Fe &gt; Ni &gt; Si, different from the traditional metal activity series. This result also implied that aluminum was selectively dissolved from the aluminum–silicon alloy anode, whereas the impurity metals remained in the anode by controlling electrolytic potential. The influence of electrolytic parameters, such as electrolysis temperature and current density, on the electrorefining process and effect were studied. The purity of aluminum deposits was more than or equal to 99.5 %, and their microstructure ranged from particles to flower-like microspheres. The cathode current efficiency was approximately 87.8 % and the energy consumption was approximately 2.14 kW·h·kg⁻¹-Al under the optimum conditions of electrolysis temperature 333 K and the current density 5 mA·cm⁻². The process is energy efficient and produces aluminum with the purity comparable to that of primary aluminum. A real sustainability in the aluminum cycle is achieved through the application of this efficient and clean process.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104927"},"PeriodicalIF":4.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation of coarse grained DEM for simulating loose packing of cohesive powders","authors":"Kimiaki Washino ,&nbsp;Dorian Faroux ,&nbsp;Ei L. Chan ,&nbsp;Tomoya Wakamatsu ,&nbsp;Takuya Tsuji ,&nbsp;Tatsuya Takahashi ,&nbsp;Shuji Sasabe","doi":"10.1016/j.apt.2025.104916","DOIUrl":"10.1016/j.apt.2025.104916","url":null,"abstract":"<div><div>Coarse grain models for Discrete Element Method (DEM) have been attracting significant attention due to their potential to drastically reduce computational costs. However, their applicability in simulating loose packing behaviour of fine and cohesive powders remains unexplored. The purpose of this study is to validate the Scaled-Up Particle (SUP) model, which is a novel coarse grain model proposed in the authors’ previous work, for simulating loose packing behaviour of original cohesive powders. Two distinct particle insertion methods are employed to control the cluster configurations during free fall: random generation of individual particles with initial vertical velocity fluctuations and direct insertion of pre-formed particle clusters. The results show that the final packing structure are strongly influenced by the falling cluster configurations and the SUP model can reproduce a wide range of packing fractions tested in the original cubic particles, from 0.1 for highly cohesive particles to 0.8 for completely cohesionless particles. This highlights the importance of considering collective states of particles to understand bulk powder behaviour.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104916"},"PeriodicalIF":4.2,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computational dynamics modeling of gas–solid flow behaviors in a spouted bed by Coupled Eulerian-Eulerian-Lagrangian method","authors":"Qinghong Zhang ,&nbsp;Xiaoni Qi ,&nbsp;Dan Zhou ,&nbsp;Jida Wu","doi":"10.1016/j.apt.2025.104906","DOIUrl":"10.1016/j.apt.2025.104906","url":null,"abstract":"<div><div>Optimizing gas-particle flow conditions is the key to improve heat and mass transfer capacity of multiphase systems. The Eulerian and Lagrangian approaches represent two standard numerical frameworks for characterizing gas–solid two-phase flows. Comparing and optimizing the similarities and differences between them is of great significance for guiding numerical modeling, revealing and predicting the intrinsic behavior of gas–solid two-phase flow. In this study, a self-developed Coupled Eulerian-Eulerian-Lagrangian (CEEL) method is employed to investigate the flow process of a fluidized bed. The particles are treated as Euler solid phase (ESP) and Lagrangian discrete particles (LDP) respectively to facilitate the comparison of the Eulerian and Lagrangian methods under real-time conditions and the same gas phase conditions. Solid-phase velocity and granular temperature are predicted by the two methods, and the diffusion characteristics of particles are quantified through their trajectory. The results show that there is little difference in the time-averaged axial velocity of the ESP and LDP, which is basically consistent with the experimental results. The instantaneous velocities of ESP and LDP are almost the same except in confined spaces, while the difference in granular temperature between the two is more significant in low concentration regions.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104906"},"PeriodicalIF":4.2,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CFD-DEM study on mixing and segregation characteristics of binary particles in a fluidized bed with secondary air","authors":"Yutong Li ,&nbsp;Huibin Xu ,&nbsp;Peijun Guo ,&nbsp;Chi Ma ,&nbsp;Weiyu Wang","doi":"10.1016/j.apt.2025.104909","DOIUrl":"10.1016/j.apt.2025.104909","url":null,"abstract":"<div><div>Secondary air intake has been suggested to be an efficient tar reduction method for fluidized bed biomass gasification. However, the influence mechanism of secondary air intake on the particle motion in the fluidized bed has not been fully understood. A CFD-DEM model was developed to investigate the segregation and mixing characteristics of binary mixture for a fluidized bed with secondary air injection. It was found that the intake of secondary air could change the original bubble pattern in the fluidized bed and form vortexes in the bed, accelerating the circulation rate of particles. The injection of secondary air has the potential to improve the speed and index of mixing, especially in the area above the nozzle plane. For the studied conditions, there is an optimum secondary air to total air ratio (<em>SATR</em>) for the mixing performance of binary mixture in a fluidized bed. On the other hand, the introduction of secondary air and relevant reduction in primary air velocity can lead to a better segregation of the binary mixture below the nozzle plane thus creating two layers with very different mixing/segregation characteristics.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104909"},"PeriodicalIF":4.2,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring Bismuth Antimonate nanocomposites with barium and calcium for superior electrochemical properties in supercapacitors","authors":"Maalavika S Iyer ,&nbsp;Palanisamy Rajkumar ,&nbsp;Karuppanan Aravinth ,&nbsp;Sankaiya Asaithambi ,&nbsp;Razan A. Alshgari ,&nbsp;Saikh Mohammad ,&nbsp;Sambasivam Sangaraju ,&nbsp;Jinho Kim","doi":"10.1016/j.apt.2025.104917","DOIUrl":"10.1016/j.apt.2025.104917","url":null,"abstract":"<div><div>This study employs a dual substitution strategy on Bismuth Antimonate to improve its performance as an electrode material for supercapacitors. Nanocomposites were synthesized by incorporating Barium (Ba²⁺) and Calcium (Ca²⁺) into Bismuth Antimonate in three different ratios, labeled as B₁C₁BiSO, B₁C₂BiSO, and B₂C₁BiSO. The simple solid-state method used for the preparation yielded nanocomposites with closely packed spherical nanostructures, resulting in a porous architecture that facilitates electrolyte access to the active surface areas. The incorporation of Ba²⁺ and Ca²⁺ creates additional active sites, significantly boosting the electrochemical results of BiSO. Notably, the B₁C₂BiSO electrode achieves a capacitance of 573 F/g at 1 A/g in a three-electrode setup, retaining 88 % of its original capacitance after 5000 cycles—surpassing the performance of other samples. Additionally, we developed an asymmetric supercapacitor device (B₁C₂BiSO||AC) with activated carbon for the negative electrode. This device delivers a capacitance of 117.5 F/g at 1 A/g and maintains 76.25 % capacity retention over 15,000 cycles. This strategy proves to be a capable approach to advance the energy storage capabilities of asymmetric supercapacitor devices.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104917"},"PeriodicalIF":4.2,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic ball indentation: advancing powder flowability characterization through complete impact dynamics analysis","authors":"Andrea C. Santomaso","doi":"10.1016/j.apt.2025.104914","DOIUrl":"10.1016/j.apt.2025.104914","url":null,"abstract":"<div><div>Predicting how particulate materials behave under applied forces is challenging due to their complex rheology. Flowability—defined as a material’s ability to initiate and sustain motion under stress—is critical in many traditional and emerging industrial applications, such as additive manufacturing. Traditional shear testers are limited in their ability to assess dynamic flow behaviour. The dynamic ball indentation method, which measures the penetration of an indenter into a powder bed, presents a promising alternative. This study enhances the method by tracking the full indentation process to more accurately calculate dynamic hardness. By monitoring the indenter’s trajectory, we obtain detailed data on material flowability, which can provide deeper insights for industrial applications. These insights become even more significant when integrated with information obtained from traditional methods such as shear cell testing.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104914"},"PeriodicalIF":4.2,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photocatalytic and antimicrobial properties of titanium doped tin dioxide quantum dots for industrial wastewater treatment","authors":"Maged M. Azzam ,&nbsp;Ammar A. Labib ,&nbsp;Hanan A. Mousa ,&nbsp;Hala T. Handal ,&nbsp;Hoda R. Galal ,&nbsp;Ibrahem A. Ibrahem ,&nbsp;Mona M. Fawzy ,&nbsp;Ahmed Atef El-Beih ,&nbsp;Pravej Alam ,&nbsp;Walied A.A. Mohamed","doi":"10.1016/j.apt.2025.104915","DOIUrl":"10.1016/j.apt.2025.104915","url":null,"abstract":"<div><div>Pure SnO₂ quantum dots (SnQ) and Ti-doped SnO₂ quantum dots (SnQT) were synthesized via a facile one-step hydrothermal method (ESOSH) and characterized their structures and properties (XRD, FTIR, HRTEM, UV-DRS). The SnQ samples (thermally treated at 290 °C and 490 °C as SnQ1 and SnQ2, respectively) had crystalline sizes of ∼ 4 nm and ∼ 9 nm, serving as baseline materials, while titanium incorporation (Sn_0.97Ti_0.03O₂ and Sn_0.93Ti_0.07O₂ for SnQT1 and SnQT2) modulated the SnO₂ lattice without introducing secondary phases. Ti doping substantially enhanced the optical and catalytic performance: SnQT1 exhibited a narrowed band gap (∼3.3 eV) and achieved the highest photocatalytic activity, degrading a model organic dye under simulated sunlight at a rate significantly faster than both the undoped SnQ and the higher-doped SnQT2 catalysts. SnQT1′s dye degradation rate constant was roughly three times that of SnQT2, highlighting the improved charge-carrier separation and extended light absorption due to Ti doping​file-dhfkdtnsslcarpbj5mucvs. SnQT1 was also the most cost-efficient catalyst, with an estimated treatment cost of $25.67 per 1000 m3 of dye solution, outperforming the other compositions in economic analysis. Moreover, Ti-doped samples demonstrated superior antimicrobial efficacy: all catalysts inhibited <em>Bacillus subtilis</em> (Gram-positive) and <em>Candida albicans</em> (yeast), with SnQT1 showing the strongest antibacterial activity. This study underscores that titanium doping in SnO₂ quantum dots yields doped quantum-dot photocatalysts with superior performance, providing valuable insights for designing high-efficiency, sustainable nanomaterials for wastewater treatment and disinfection applications.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104915"},"PeriodicalIF":4.2,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}