Particuology最新文献_第10页

Particle size distribution of submicron particulate matter from coal/biomass combustion under different conditions: A comparison of modeling and experimentation 不同条件下煤/生物质燃烧亚微米颗粒物的粒径分布：模型与实验的比较

IF 4.1 2区材料科学

Particuology Pub Date : 2025-05-13 DOI: 10.1016/j.partic.2025.05.001

Xuejun Ma , Minmin Zhou , Chunjing Liu , Fei Zheng , Jianyi Lu

{"title":"Particle size distribution of submicron particulate matter from coal/biomass combustion under different conditions: A comparison of modeling and experimentation","authors":"Xuejun Ma , Minmin Zhou , Chunjing Liu , Fei Zheng , Jianyi Lu","doi":"10.1016/j.partic.2025.05.001","DOIUrl":"10.1016/j.partic.2025.05.001","url":null,"abstract":"<div><div>Coal/biomass combustion is a major source of submicron particulate matter (sub-PM), with mineral substances in the fuels playing a key role in the formation and growth of these particles. In this study, the temporal evolution of sub-PM is predicted by simulating coal/biomass combustion under different temperature, atmosphere, species, particle size and density conditions by using nucleation, condensation, coagulation and deposition sub-models. Compared with experimental data, the results show that the amount of sub-PM generated from pulverized coal combustion increases with higher temperatures and oxygen concentrations, and lignin (LN) produces the highest emission of sub-PM among different biomass types. The peak particle size distribution (PSD) of sub-PM across different experimental conditions is mainly centered around 0.1–0.2 μm. The values of relative error are below 20% and even below 10%, indicating that the model is in good agreement with the experimental data. Subsequently, the effects of pulverized coal size and coal density on the PSD of sub-PM are predictively simulated by the verified model, the findings indicate that both of the peak PSD are among 0.08–0.23 μm, the emission amount of sub-PM negatively relate to coal size and coal density.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 240-250"},"PeriodicalIF":4.1,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105930","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}

引用次数: 0

Nucleation and growth of MOF-based composite materials for electrochemical energy storage 电化学储能用mof基复合材料的成核与生长

IF 4.1 2区材料科学

Particuology Pub Date : 2025-05-10 DOI: 10.1016/j.partic.2025.04.019

Shunyu Gu , Huijie Zhou , Mengyao Zhang , Chenfei Zhou , Wanchang Feng , Yuansheng Jiang , Huan Pang

{"title":"Nucleation and growth of MOF-based composite materials for electrochemical energy storage","authors":"Shunyu Gu , Huijie Zhou , Mengyao Zhang , Chenfei Zhou , Wanchang Feng , Yuansheng Jiang , Huan Pang","doi":"10.1016/j.partic.2025.04.019","DOIUrl":"10.1016/j.partic.2025.04.019","url":null,"abstract":"<div><div>Existing studies have systematically summarized the synthesis methods, performance optimization strategies, and uses of MOF composites in areas such as supercapacitors, batteries, and electrocatalysis. Unlike existing literature, this review delves into the synthesis processes of MOF composites from the perspective of nucleation mechanisms, with an emphasis on the effects of induced nucleation (including dynamic and in situ nucleation) and seed-mediated growth (utilizing MOFs or functional materials as seeds) on material structures and properties. Induced nucleation influences crystal growth by modulating parameters such as temperature and solvents, while in situ nucleation controls the process through the introduction of specific precursors. Seed-mediated growth, on the other hand, involves the growth of crystals on pre-existing seeds supported on substrates. By leveraging the significant advantages of MOF composites, such as enhanced conductivity, stability, and performance, these materials have been shown to improve the functionality of supercapacitors and batteries. Additionally, they exhibit excellent catalytic activity in electrocatalysis. In summary, this study not only elucidates the nucleation mechanism-guided preparation methods of MOF-based materials but also uncovers their underlying mechanisms in electrochemical energy storage. It offers fresh perspectives and practical guidance toward the advancement of high-performance electrochemical power storage materials.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 216-239"},"PeriodicalIF":4.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088911","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}

引用次数: 0

Hydrodynamic parameters and applications of circulating fluidized beds in wastewater treatment: A review 循环流化床水动力参数及其在废水处理中的应用综述

IF 4.1 2区材料科学

Particuology Pub Date : 2025-05-08 DOI: 10.1016/j.partic.2025.04.018

Aya A. Najim , Ahmed Y. Radeef

{"title":"Hydrodynamic parameters and applications of circulating fluidized beds in wastewater treatment: A review","authors":"Aya A. Najim , Ahmed Y. Radeef","doi":"10.1016/j.partic.2025.04.018","DOIUrl":"10.1016/j.partic.2025.04.018","url":null,"abstract":"<div><div>This review investigates the gas-liquid-solid circulating fluidized bed (GLS-CFB) technology for wastewater treatment by exploring its operational parameters and diverse applications for wastewater cleaning. The versatile CFB reactor system operates in both two-phase and three-phase modes, offering advantages for various industrial applications through distinct operational configurations. Incorporating the liquid phase into the standard gas-solid system of the three-phase GLS-CFB enables the study of reactions involving liquid media, gas-liquid interactions, and biochemical processes. These advanced features improve mass transfer and reaction control. GLS- CFB systems promote effective pollutant removal by enhancing the interaction between wastewater and treatment agents, which supports better microbial metabolism and pollutant transfer. The GLS-CFB system is efficient and compact, allowing for treating diverse wastewater types regardless of their size distribution. The novelty of this review lies in exploring the hydrodynamic properties of GLS-CFB and demonstrating its potential for scalable, efficient wastewater treatment across various industrial sectors.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 190-206"},"PeriodicalIF":4.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950459","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}

引用次数: 0

Effect of impeller rotational speed and paddle angle on binary mixing in a paddle mixer based on DEM 基于DEM的桨叶混合器叶轮转速和桨叶角度对二元混合的影响

IF 4.1 2区材料科学

Particuology Pub Date : 2025-05-03 DOI: 10.1016/j.partic.2025.04.016

Defu Wang, Jiaqi Yu, Zhijun Lv, Yanhui Song, Huinan Huang, Hui Tian, Haibo Wang, Baohao Su

{"title":"Effect of impeller rotational speed and paddle angle on binary mixing in a paddle mixer based on DEM","authors":"Defu Wang, Jiaqi Yu, Zhijun Lv, Yanhui Song, Huinan Huang, Hui Tian, Haibo Wang, Baohao Su","doi":"10.1016/j.partic.2025.04.016","DOIUrl":"10.1016/j.partic.2025.04.016","url":null,"abstract":"<div><div>The discrete element method (DEM) and experimental measurements were employed to investigate the influence of impeller rotational speed and paddle angle on the mixing characteristics of two types of non-spherical particles in a paddle mixer. A close agreement between the simulation and experimental data was observed. By analyzing the motion of particles, it was found that a wide range of diffusion motion occurred when the particles pushed by the paddle blades rolled down the surface of the upper flowing layer of particles in the vessel, which caused the strong circumferential motion of particles, meanwhile promoted the axial movement of particles. The mixing characteristics were analyzed using relative standard deviation (RSD), velocity frequency distribution, diffusivity coefficient and Peclet numbers. The mixing process was accelerated at the rotational speeds of 15, 20, and 25 rpm, meanwhile the superior mixing performance was achieved at the paddle angles of 30° and 45° in the study. The fluidity of particles in circumferential direction was higher than that in axial direction. Diffusion was the prevailing mixing mechanism in the current mixing system.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 178-189"},"PeriodicalIF":4.1,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941204","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}

引用次数: 0

Strategy on improving structural integrity of cobalt-free layered cathode material for sustainable lithium-ion batteries 提高可持续锂离子电池无钴层状正极材料结构完整性的策略

IF 4.1 2区材料科学

Particuology Pub Date : 2025-05-02 DOI: 10.1016/j.partic.2025.04.014

Junhao Li, Zhengyuan Tang, Xinping Huang, Baoguo Yang, Qian He, Jun Li

{"title":"Strategy on improving structural integrity of cobalt-free layered cathode material for sustainable lithium-ion batteries","authors":"Junhao Li, Zhengyuan Tang, Xinping Huang, Baoguo Yang, Qian He, Jun Li","doi":"10.1016/j.partic.2025.04.014","DOIUrl":"10.1016/j.partic.2025.04.014","url":null,"abstract":"<div><div>In recent years, cobalt has emerged as a critical limiting factor in the production chain of the lithium-ion battery industry. The increasing demand for electric vehicles has made the dependence on cobalt in lithium-ion batteries a significant challenge for environmental sustainability. To address the problem, a new class of cobalt-free materials has been introduced, called lithium iron aluminium nickel oxides (NFA) cathode materials, with the general formula Li(Ni<sub>0.8</sub>Fe<sub>0.1</sub>Al<sub>0.1</sub>)<sub>1-x</sub>Mg<sub>1.5x</sub>O<sub>2</sub> (x = 0, 0.005, 0.01, 0.015). In this work, a series of cobalt-free materials were synthesized via sol-gel processes, and variations in magnesium content were explored to investigate their compositional landscape. Electrochemical performance evaluations revealed that Mg<sup>2+</sup> doping significantly improved the electrochemical properties of the material. Among them, samples prepared with 1.5 mol% Mg<sup>2+</sup> doping (i.e. the value of 0.01 for x) exhibited the best cycling capacity. After 100 cycles at 0.1C, the capacity retention rate was found to be 80.71 %, with a specific capacity of 151.39 mAh g<sup>−1</sup>, demonstrating remarkable rate capability and cycling stability. Although still in the nascent stages of the investigation, these cathodes hold potential as candidates for the next generation of cobalt-free lithium-ion batteries.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 165-177"},"PeriodicalIF":4.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934758","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}

引用次数: 0

X-ray computed tomography (XCT) study of jetting in a fluidized bed: Effects of two-component fluidization 流化床内喷射的x射线计算机断层扫描（XCT）研究：双组分流化效应

IF 4.1 2区材料科学

Particuology Pub Date : 2025-05-02 DOI: 10.1016/j.partic.2025.04.017

Zhong Xiang , Xi Chen , Shuguang Liu , Theodore J. Heindel

{"title":"X-ray computed tomography (XCT) study of jetting in a fluidized bed: Effects of two-component fluidization","authors":"Zhong Xiang , Xi Chen , Shuguang Liu , Theodore J. Heindel","doi":"10.1016/j.partic.2025.04.017","DOIUrl":"10.1016/j.partic.2025.04.017","url":null,"abstract":"<div><div>Fluidization of non-spherical particles is commonly found in the biomass and solid waste processing industry, and the jetting characteristic above the aeration plate is critical to the fluidization performance of these particles. In this study, cylindrical particles are used as typical non-spherical particles and co-fluidized with small bed material particles. X-ray computed tomography (XCT) is used to reconstruct the 3D structure of the aeration plate region, allowing for the identification of individual aeration jets. The effects of jet velocity (<em>U</em><sub>j</sub>), cylindrical particle mass fraction (<em>ω</em>), cylindrical particle density (<em>ρ</em><sub>i</sub>), and the cylindrical particle sphericity (<em>ϕ</em>) on jet shape and volume are investigated. The experimental results indicate that decreasing the cylindrical particle mass fraction (<em>ω</em>) and particle density (<em>ρ</em><sub>i</sub>) increases the jet length (<em>L</em>), maximum jet diameter (<em>D</em>), and maximum jet volume (<em>V</em>), but have little effect on the jet half angle (<em>θ</em>). The cylindrical particle density (<em>ρ</em><sub>i</sub>) is the most sensitive factor for jet shape, while the effect of cylinder particle sphericity (<em>ϕ</em>) on jet shape is insignificant. A correlation of jet length (<em>L</em>) in a two-component fluidized bed with cylindrical particles and bed material is proposed based on all the experimental results.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 264-274"},"PeriodicalIF":4.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124553","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}

引用次数: 0

Selective lithium leaching from spent Li(MnyFe1-y)PO4 cathodes with gradient in-situ-oxidation of Na2S2O8 Na2S2O8梯度原位氧化法从废锂（MnyFe1-y）PO4阴极中选择性浸出锂

IF 4.1 2区材料科学

Particuology Pub Date : 2025-04-29 DOI: 10.1016/j.partic.2025.04.015

Hao Lei , Wei Wang , Longjin Jiang , Zhidong Chang , Hira Anwar , Bin Dong , Dekun Gao , Zhiyi Chen , Mingming Liu

引用次数: 0

Effect of different size ceramic balls on quartz grinding dynamics in batch ball mill 间歇式球磨机中不同粒度陶瓷球对石英研磨动力学的影响

IF 4.1 2区材料科学

Particuology Pub Date : 2025-04-25 DOI: 10.1016/j.partic.2025.04.011

Yuqing Li , Ningning Liao , Caibin Wu , Zepeng Lin , Cong Luo , Haowen Wu , Jiexin Zhou , Jinbo Huang

{"title":"Effect of different size ceramic balls on quartz grinding dynamics in batch ball mill","authors":"Yuqing Li , Ningning Liao , Caibin Wu , Zepeng Lin , Cong Luo , Haowen Wu , Jiexin Zhou , Jinbo Huang","doi":"10.1016/j.partic.2025.04.011","DOIUrl":"10.1016/j.partic.2025.04.011","url":null,"abstract":"<div><div>This study investigated the effect of ceramic ball diameter on grinding performance of quartz crystal with different particle sizes in wet ball mill, and established a population-equilibrium model in quartz grinding process. The results show that the first-order crushing kinetic model can accurately describe the grinding behavior of quartz. The crushing rate of quartz mineral decreases with the decrease of the size of ceramic ball, but the crushing rate of small-size ceramic ball is less affected by the quartz feed size. On the other hand, quartz grinding products have obvious zero-order fine grain output characteristics in a short time, and with the decrease of ceramic ball diameter, the maximum grinding capacity of minerals increases first and then decreases. The grain size distribution of quartz grinding results can be calculated accurately by using the final quartz crushing parameters. The particle size distribution data simulated by the population balance model is in good agreement with the experimental data of quartz grinding process.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 141-151"},"PeriodicalIF":4.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906218","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}

引用次数: 0

Influence of flight structures and baffle dam on particle behaviors and gas-solid heat exchange enhancement in a rotary drum 飞行结构和挡板对转鼓内颗粒行为和气固换热增强的影响

IF 4.1 2区材料科学

Particuology Pub Date : 2025-04-23 DOI: 10.1016/j.partic.2025.04.010

Yewei He , Dianyu E , Nien-Chu Lai , Zeyi Jiang

{"title":"Influence of flight structures and baffle dam on particle behaviors and gas-solid heat exchange enhancement in a rotary drum","authors":"Yewei He , Dianyu E , Nien-Chu Lai , Zeyi Jiang","doi":"10.1016/j.partic.2025.04.010","DOIUrl":"10.1016/j.partic.2025.04.010","url":null,"abstract":"<div><div>In a waste heat recovery rotary drum with flights, particle lifting enhances gas-solid contact and introduces greater complexity to the particle motion. This study proposed strategies such as the segmentation and separation of flights (SSF) and the addition of baffle dams to establish a reasonable distribution of the particle curtain. A long drum model was developed, and DEM was employed to examine the effects of segment length, separation angle of flight, and position, height of baffle dam on particle motion and heat exchange capacity. The heat exchange efficiency of the system under the four special operating conditions was compared. The results showed that SSF enhanced the randomness of particle axial motion, while the development of the long drum model effectively identified the key factors influencing motion. The SSF formed a spiral-shaped particle curtain, exhibiting a high degree of particle distribution uniformity. The installation of the baffle dam enhanced the flight holding capacity and suppressed both transitional particle movement and backflow. With equivalent filling degree, compared to the uninterrupted flight, the SSF with bilateral baffle dam reduced the particle distribution non-uniformity by 61.72 %, while increasing the gas-solid contact area by 3.92 % and the bulk cooling temperature by 1.51 times.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 104-117"},"PeriodicalIF":4.1,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901935","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}

引用次数: 0

Numerical study and experimental validation of copper powder plasma spheroidization process 铜粉等离子体球化过程的数值研究与实验验证

IF 4.1 2区材料科学

Particuology Pub Date : 2025-04-22 DOI: 10.1016/j.partic.2025.04.006

M. Hossein Sehhat, Ming C. Leu

{"title":"Numerical study and experimental validation of copper powder plasma spheroidization process","authors":"M. Hossein Sehhat, Ming C. Leu","doi":"10.1016/j.partic.2025.04.006","DOIUrl":"10.1016/j.partic.2025.04.006","url":null,"abstract":"<div><div>The powder characteristics, such as particle size and geometry, play an important role in determining the quality of powder layer and parts fabricated with powder-based additive manufacturing processes. Previous research has found that spherical particles result in better powder flowability and spreadability. An attempt to improve particle sphericity is to process the powder using plasma spheroidization, where the particles heat up, melt, and reshape to spheres. Several research works have been conducted to study the plasma spheroidization process and understand particle-plasma reactions. Although researchers have turned to simulations to overcome the difficulty of experimental study of such reactions, they only characterized the powder particle size without evaluating the particle geometry. In this work, the plasma spheroidization process of copper powder was numerically and experimentally examined to assess the impact of plasma spheroidization on particle size and geometry. For the first time in the literature, a method of simulation was proposed to numerically quantify the particle geometry at each particle residence time. The results of simulation agreed well with those of experiments.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"102 ","pages":"Pages 78-85"},"PeriodicalIF":4.1,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881781","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}

引用次数: 0