期刊,颗粒学报（英文版） 2024年卷8期_国家学术搜索

期刊信息/Journal information

颗粒学报（英文版）

主　　编：郭慕孙

出版周期：双月刊

国际刊号：1674-2001

电子邮箱：jcsp@home.ipe.ac.cn

电　　话：010-82629146

邮政编码：100080

地　　址：北京中关村北二条1号中科院过程所内

颗粒学报（英文版）/Journal China ParticuologyCSCDCSTPCD北大核心EISCI

查看更多>>本刊以创精品与国际化为办刊方针，旨在反映中国颗粒学研究的最新成果、及时追踪国际颗粒学领域的最新动态。学报主要刊登国内外颗粒学领域中的研究、工程和应用方面的优秀原始论文，包括颗粒测试与表征、颗粒制备与处理、流态化、气溶胶和超微颗粒等。本刊不仅设有论坛、研究论文、研究简报等内容，还有书评、会议信息与报道、测试仪器进展等栏目，便于相关人士进行学术交流，并为科技成果的展示提供平台，信息十分丰富。本刊已陆续被美国化学文摘（CA），俄罗斯文摘杂志（AJ），剑桥科学文摘（CSA）以及中国科技论文与引文数据库(CSTPCD)收录。China PARTICUOLOGY, a bimonthly interdisciplinary journal in English, purports to present the best papers in research, engineering and application in the overall field of PARTICUOLOGY, including particle characterization, particle preparation, aerosol, fluidization and ultra-fine particles. The word PARTICUOLOGY was coined to correspond to its Chinese terminology, which denotes both the science and technology of particles. Although the journal is China-based, it serves as a medium for all accepted papers of international origin, especially the best papers representing current advances in the world. Besides scientific and engineering papers, the journal includes the following sections: R & D notes, Current events, Editorials reviews, Forum for comments, opinions and qualified speculations, News on books, instruments and meetings.Now， China Particuology has been indexed by CA, AJ , CSA and CSTPCD.??读者对象（Audiences）：中国颗粒学会会员、国内外从事颗粒学和颗粒技术研究和生产的大专院校师生、科研院所及企业的研究人员和技术人员。 Member of Chinese Society of Particuology, and researchers or experts who are engaged in the study of particle sciences and technology coming from colleges, institutes and corporations all over the world.

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Layered double hydroxides functionalization toward rechargeable batteries

Jianxiong GaoBowen JinMingfei Shao

138-154页

查看更多>>摘要：Layered double hydroxides(LDHs),known as typical two-dimensional materials with unique physico-chemical properties,are regarded as promising candidates in energy storage fields.However,some inherent defects,such as poor conductivity and limited active sites,hinder the further development of LDHs.Recently,various functionalization strategies(e.g.,intercalation of guest molecules;metal ions doping and defect introduction of host layer;exfoliation to monolayer;hybridization with functional materials;construction of hierarchical structure;interface engineering and phase transformation)have been used to modify the characteristics of LDHs,which provides guidance for designing novel nano-materials.In this review,we discuss how these strategies improve the properties of LDH-based materials,which are expected to possess high electronic and ionic conductivity,high specific surface area and high mechanical and chemical stability etc.Moreover,the application of LDH-based materials in advanced energy conversion and storage techniques,including metal-ions batteries,lithium-sulfur batteries and metal-air batteries,have been comprehensively summarized.

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Effect of reaction and post-treatment conditions on physico-chemical properties of magnetic iron oxide nano-particles

Masome MoeniMohamed EdokaliMatthew RogersOscar Cespedes...

155-167页

查看更多>>摘要：Poor stability and dispersibility,as well as aggregation are considered as major challenges in clinical application of iron oxide nanoparticles(IONPs).Several studies have shown that the synthesis param-eters and post-synthesis treatments e.g.,drying methods,have the capability to improve the particles'characteristics.Herein,we investigate the combined effect of synthesis and post-treatment parameters on the particle size,stability and magnetism of IONPs.Magnetite(Fe3O4)NPs were prepared via co-precipitation and post-treated using different methods,i.e.(ⅰ)freeze dried at-53 ℃,0.133 mbar for 48 h(liquid nitrogen frozen(LFD)and freezer frozen(FFD)),(ⅱ)vacuum oven dried(VOD)at 60 ℃ for 24 h,and(ⅲ)kept wet colloidal(WET),dispersed in deionized water.The Fe3O4 NPs'chemical functional groups,size,shape,crystallinity,stability,aggregation,porosity,and magnetic properties were further analysed using different characterisation techniques.Analytical results showed that,while the WET sample had the best stability and significantly less aggregation at different temperatures,amongst post-treated Fe3O4 NPs,LFD sample exhibited the best stability(up to 37 ℃),dispersion and smallest poly-dispersity index.Furthermore,all dried NPs had superparamagnetic characteristics,while,LFD Fe3O4 NPs had better magnetic properties and stability than other drying methods.

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Effect of turbulent fluctuation on the ignition of millimeter particle:Experimental studies and numerical modelling with a new correlation of nusselt number

Lele FengJie LiuHaihui XinLiangliang Jiang...

168-175页

查看更多>>摘要：Understanding the influencing mechanism of turbulent fluctuation on the ignition characteristics of millimeter coal particles is essential.In this work,to study the effect of turbulent fluctuation on ignition time,millimeter coal particles are subjected to a specific flow field,generated in a furnace with sym-metric fans.A one-dimensional model with the new proposed correlation and the Ranz-Marshall(R-M)correlation for Nu(Nusselt number)is established to simulate the coal ignition process.In addition,the effects of fan speed,temperature,particle diameter,particle distance and coal type on the ignition time are investigated.It is found that an increase in fan speed from 0 to 3000 rpm leads to a particle Reynolds number Rep increase from 0 to 22.5,and a turbulent particle Reynolds number Ret*increase from 0 to 71.5.With a consideration of the fluctuation effect,the new correlation of Nu gives a better prediction of ignition time compared to the R-M correlation.Moreover,the ignition time is revealed to decrease with an increasing fan speed and an elevating temperature.While the ignition time shows merely an initial boost with enlarging particle distance,it exhibits a linearity with the term of particle diameter dp1.3-1.7 and Reynolds numbers(Nu*/Nu)-0.6(Nu*is turbulent Nusselt number).Based on this relationship,the difference of predicted ignition time is calculated at different Rep and Ret*.It is shown that at low Rep or high Ret*values,the new correlation should substitute for the R-M correlation.

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Particle effects on the hydrodynamics in slurry bubble column reactors:A review from multiscale mechanisms

Min AnJingqi GaoTiankuo WangXiangnan Li...

176-189页

查看更多>>摘要：Particles can appear as catalyst,reactant or product in various gas-liquid-solid three-phase production processes.Slurry bubble column reactors(SBCRs),as a kind of three-phase reactors,are preferred for phase contacting and mixing.However,literature studies concerning the effects of particles on the hy-drodynamics of SBCRs are manifold and inconsistent in conclusions.Essentially,the multiscale in-teractions between particles,turbulent eddies and bubbles determine the reactor performance.This review focuses on revealing the particle effects in SBCRs from the perspective of multiscale mechanisms.Macroscopic hydrodynamic changes due to particle effects in literature are summarized.Dimensionless parameters,including the Stokes number,the solid-to-liquid density ratio,the ratio of particle and liquid characteristic lengths,the contact angle and the particle volume fraction are adopted to evaluate the characteristics of gas-liquid-solid flows.The relationships between particle influencing mechanisms and these parameters are analyzed and determined.Inconsistent experimental results are explained by different ranges of these dimensionless parameters.Moreover,particle effects at the mesoscale and microscale,such as the influence on the bubble dynamics and the pivoting effect on the turbulence energy spectrum,are elaborated.Finally,progress in modeling the SBCRs with consideration of particles effects using the Euler method are introduced.This review aims to improve the overall understanding of the complex hydrodynamics in the SBCRs.

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Copper-based nanodots as efficient biomimetic antibiotics for the treatment of oral bacterial infections

Ying LiNan TangLingling ZhaoXingfu Bao...

190-201页

查看更多>>摘要：Oral infectious diseases caused by a variety of pathogenic bacteria seriously affect the quality of life.However,these diseases remain a clinical challenge because of the lack of simple,safe,and universal prophylactics.To address these limitations,we synthesize CuOx nanodots(CuOx NDs)with excellent Fenton-like reaction activity and utilize them in the treatment of oral bacterial infections.Different from other complicated approaches,CuOx NDs are rationally prepared using a facile one-pot aqueous syn-thesis.In the presence of H2O2,these well-developed CuOx NDs can efficiently catalyze the generation of hydroxyl radicals(·OH)around oral pathogens,leading to the death of various bacteria.Meanwhile,results of biosafety indicate the high biocompatibility and extremely low toxicity of these CuOx NDs.After understanding the admirable in vitro antibacterial effect of CuOx NDs in the presence of H2O2,we further explore their in vivo antibacterial performance on several classical animal models including oral mucosal wound model,intragingival bacteria-infected model,and the periodontal infection model.As expected,these CuOx NDs with wide-spectrum antibacterial activity can serve as high-performance antibacterial reagents for the treatment of various oral bacterial infections with the help of H2O2.In brief,current nanoplatform can act as efficient antibiotics against oral pathogens with broadening the biomedical applications of copper-based nanomaterials.

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Application of flame-formed carbon nanoparticle films for ethanol sensing

Pegah DarvehiLuca BastaMario CommodoPatrizia Minutolo...

202-210页

查看更多>>摘要：Carbon nanoparticles(CNPs)have received considerable attention due to their exceptional qualities and adaptability.Their unique physical and chemical characteristics make them extremely intriguing as materials for numerous high-potential applications,such as electronics and gas sensing.This study focused on producing carbon-based nanomaterial devices by deposition of flame-formed carbon nano-particles on a suitable substrate and investigating their gas-sensing properties.CNPs were produced in a fuel-rich laminar premixed ethylene/air flame and the collected CNP film was morphologically and electrically characterized.The electrical conductivity of the film was investigated as a function of ethanol concentration and amount of deposited material.Notably,CNP films exhibited high sensitivity to ambient ethanol gas concentrations,and rapid recovery times at room temperature,and showed a sensitivity increasing with the amount of deposited material and the surface complexity.Our findings demonstrate the high potential of combustion-generated CNPs as building materials for low-cost and portable ethanol sensors.

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Effect of cylinder wall parameters on the final packing density of mono-disperse spheres subject to three-dimensional vibrations

Jack R.GroganAndrei L.Nicu?anChristopher R.K.Windows-Yule

211-225页

查看更多>>摘要：Achieving densely packed particles is desirable within the industries of ceramics,pharmaceuticals,defence and additive manufacturing.In this work,we use the discrete element method(DEM)to determine the effect of wall parameters on the final packing density of mono-disperse spheres subject to 4 varying three-dimensional vibration and fill conditions.We focus specifically on the impact of the container wall parameters on the particles'final packing density.Following on from the validation of the DEM simulation the particle-wall coefficient of restitution,the particle-wall coefficient of rolling friction and the particle-wall coefficient of sliding friction were varied individually and the effect on the final packing density analysed.For relatively low particle-particle friction glass beads,the effect of these wall properties had no discernible effect on the final packing density achieved.Following on from these findings the particle-wall properties were varied at the extreme values of particle-particle coefficient of rolling friction and particle-particle coefficient of sliding friction.For a particle-particle coefficient of sliding friction=1,increases in particle-wall coefficient of restitution resulted in a minor increase in the final packing density of particles though this was not statistically significant.For a particle-particle co-efficient of sliding friction=1,increases in particle-wall coefficient of rolling friction resulted in a minor decrease in the final packing density of the particles though again not to a degree where the trend can,with complete certainty,be distinguished from the random error across the repeats.Finally,when the particle-particle coefficient of sliding friction=1,increases in particle-wall coefficient of sliding friction resulted in a significant decrease in the final packing density of particles.This decrease was attributed to the propagation of force chains throughout the packing.The significant decrease in final packing density with particle-wall coefficient of sliding friction highlights the need to choose appropriate vessel mate-rials to optimise packing of particles with a high particle-particle coefficient sliding friction.Conversely,for particles with minimal particle-particle friction,the particle-wall friction coefficient has no effect on the final packing density of particles-a potentially valuable finding for certain industrial applications.All simulations were run using the open-source DEM package LIGGGHTS on the University of Birmingham's high-performance computer:BIueBEAR.All the code files used within this paper can be found on Github:https://github.com/Jack-Grogan/DEM-Vibropacking-Wall-Effects.

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Study on flow characteristics and phase holdup in a slurry bubble column coupled with mild agitation

Qingyuan AnJiantao LiLei ZhangNailiang Wang...

226-234页

查看更多>>摘要：A pilot-scale experimental setup was constructed to investigate the effect of mild agitation on the bubble characteristics and phase holdup in a slurry bubble column.Mild agitation positively impacts the axial uniform distribution of solid holdup,though it shows insignificant influence on the radial distribution.In homogenous regime,mild agitation promotes the coalescence of bubbles,and the effect becomes stronger with increasing agitator speed.The mild agitation contributes to a decrease in bubble size in heterogeneous flow regime.Mild agitation presents a significant effect on the gas holdup by adjusting the bubble size and bubble motion trajectory.The modification was introduced to predict the gas holdup considering the effects of mild agitation,a necessary consideration for applications requiring mild agitation.This adapted model predicts gas holdup with a maximum error of 12.9％.

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Effect of operating conditions on the performance of riser reactor for oxidative coupling of methane

Min CaiShuangzhu KongMengxi LiuChunxi Lu...

235-248页

查看更多>>摘要：Oxidative coupling of methane(OCM)is characterized by high temperature and strong heat released.A riser reactor is designed for the OCM process to improve gas-solid contacting and heat transfer.This work illustrates the effect of hydrodynamic conditions and feed gas composition on the performance of an OCM riser reactor.The findings suggest that oxidative reactions predominantly occur within the accel-eration zone and developed flow zone.Furthermore,at the low superficial gas velocity accompanied by a high solid circulating rate,the C2 yield initially increases in the acceleration zone,followed by a decrease in the developed flow zone and deceleration zone.The optimal operating conditions are a specific region corresponding to the solids holdup ranges from 0.015 to 0.02.Moreover,the C2 yield can be elevated using an appropriate feed mixture.

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Heterogeneous crystallization of Chlorzoxazone for modulating the physicochemical properties of crystals

Dhayananth NatarajanKalaichelvi PonnusamyRadhakrishnan Thota Karunakaran

249-259页

查看更多>>摘要：The polymer on modulating the crystal's habit is an evolving research in pharmaceutical crystallization.This study demonstrates the crystal habit modification of chlorzoxazone(CHZ)by heterogeneous crys-tallization(HC)in the binary solvent acetonitrile-ethanol(A-E(1:1))in the presence of poly-vinylpyrrolidine(PVP)at concentrations of 0.50,0.75,and 1.00 wt％.The A-E(1:1)and PVP in HC experiments influenced to change the shape of crystals from needle to plate shape and reduced the crystal size producing a lower aspect ratio(in the range of 1.5-2.3).In the presence of PVP,the CHZ size distribution is 65-78 pm which tends to enhance the powder flow-ability of CHZ crystals and as the PVP concentration increases,the nucleation rate decreases.The solubility of size-reduced CHZ crystals at different pH is found to be improved by 1.2-1.4 times.Hence,HC is deemed effective in modifying the physicochemical attributes of CHZ.

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