期刊,颗粒学报（英文版） 2024年卷9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.

正式出版

收录年代

Optimization of mixing speed and time to disperse the composite conductive agent composed of carbon black and graphene in lithium-ion battery slurry

Zhilong WangJialong TuXinhao YuFeixiang Li...

1-12页

查看更多>>摘要：This paper proposed an optimal approach to disperse the composite conductive agent which is composed of carbon black(CB)and graphene(Gr)within lithium-ion battery(LIB)slurry with different mixing speeds and mixing times.The internal structures of LIB slurry are characterized by Electro-chemical Impedance Spectroscopy,Scanning Electron Microscopy,and Raman experiment.Initially,a composite conductive solution is prepared by mixing the composite conductive agent with NMP solvent under the conditions of five different mixing speeds n1(n1=1000,1100,1200,1300,1400 rpm)in the case of mixing time t1=10 min.Subsequently,LIB slurry is prepared by blending the composite conductive solution,LiCoO2 and PVDF-NMP solution under the conditions of five different mixing speeds n2(n2=1000±280,1100±280,1200±280,1300±280,1400±280 rpm)in the case of mixing time t2=6 min.By analyzing the internal structure of different LIB slurries,it shows that in the case of n1=n2=1200 rpm,a conductive network structure is well formed within LIB slurry.Additionally,in order to determine the optimal time to prepare the composite conductive solution for LIB slurry,nine different t1(t1=0,10,20,30,40,50,60,70,80 min)are selected.By analyzing the internal structure of different LIB slurries,a well-formed conductive network structure and a uniformly distributed composite conductive agent are deduced in LIB slurry when t1=50 min.Therefore,it can be concluded that the composite conductive agent composed of CB and Gr is able to be uniformly dispersed in LIB slurry by establishing a well-formed conductive network structure under the optimal mixing speed n1=n2=1200 rpm and the optimal mixing time t1=50 min,t2=6 min.This kind of the internal structure has the potential to be used to further analyze the dispersion characterizations of LIB slurry under different composite conductive agent and CB/Gr ratios with the aim of improving the final per-formance of LIB.

原文链接:

NETL
NSTL
万方数据

Effects of the properties of Mg(OH)2 precursor on the hydrothermal synthesis of magnesium oxysulfate whiskers

Thanayos BoonritMei YangGuangwen Chen

13-23页

查看更多>>摘要：Magnesium oxysulfate(MOS)whiskers are commonly synthesized through a dissolution-precipitation mechanism,wherein Mg(OH)2 dissolves to form Mg(OH)64-,followed by reactions with SO4-and H2O to yield MOS whiskers.However,the impact of Mg(OH)2 precursor properties on the formation process of MOS whiskers has been insufficiently explored,and sector-like and needle-like morphologies were both observed in previous studies.In this study,we systematically investigated how the properties of Mg(OH)2 precursors influenced the crystalline structure and morphology of MOS whiskers.Under various experimental conditions,MgSO4·5Mg(OH)2·2H2O(152MOS)whiskers were consistently ob-tained,regardless of Mg(OH)2 morphology and size.The size of Mg(OH)2 emerged as a critical factor in shaping the morphology of 152MOS whiskers.Smaller-sized Mg(OH)2(≤106±37 nm)favored the formation of sector-like whiskers,while larger-sized Mg(OH)2(≥206±98 nm)encouraged the devel-opment of needle-like whiskers.This distinction was attributed to the slower dissolution rate exhibited by larger-sized Mg(OH)2,maintaining a smaller number of 152MOS nuclei and promoting the growth of needle-like whiskers instead of the aggregation of 152MOS nuclei into sector-like structures.In addition,the effects of the molar ratio of Mg2+to SO4-and hydrothermal temperature were also studied.The average length and diameter of the needle-like whiskers prepared with Mg(OH)2 of 331±145 nm under optimized conditions were 77±32 and 0.39±0.10 μm,respectively.This study presented an effective strategy for controlling the morphology of 152MOS whiskers.

原文链接:

NETL
NSTL
万方数据

Synchrotron X-ray micro-computed tomography imaging of solid bridges between potash particles near contact points

Mojtaba Nabipoor HassankiadehMohammad Mehdi HeydariCarter BlockaLifeng Zhang...

24-29页

查看更多>>摘要：Chemical fertilizers,such as potash,have a strong tendency to cake when exposed to humidity.In this work,a novel synchrotron-based X-ray tomography 3D-imaging technique was for the first time employed to investigate the solid bridge formation from 2D and 3D perspectives.Image processing and a theoretical model were presented to demonstrate recrystallization near contact points between potash particles during a conventional drying process.The effect of initial moisture content on the water activity of surface surrounding the contact points was investigated.The results showed that by increasing the moisture content of particles(3％-5％),the dissolution of sylvite increased and the solid bridge length between potash particles was enlarged from 28 μm to 44 μm due to supersaturation conditions.In addition,the external porosity of potash particles at the end of drying process decreased from 25.3％to 19.5％for 3％and 5％moisture content,respectively.

原文链接:

NETL
NSTL
万方数据

Granular collapse in fluids:Dynamics and flow regime identification

Hu TangBisong LinDengming Wang

30-41页

查看更多>>摘要：The collapse of granular material in fluids is a prevalent phenomenon in both natural and industrial processes,displaying a notable sensitivity to initial configuration of the system.This study is specifically oriented towards falling process of collapsing material under various fluid conditions,employing the computational fluid dynamics-discrete element method(CFD-DEM)to primarily investigate the dy-namics and scaling laws of deposit morphology of collapsed material.Through a comprehensive analysis of particle sedimentation in fluids,we introduce a refined inertial characteristic time for granular collapse within the inertial regime.Subsequently,we propose modifications to conventional fluid-particle density ratio and Reynolds number,aiming to enhance the accuracy of depicting collapse dy-namics and identifying flow regimes across diverse column heights and fluid conditions.Finally,we construct a phase diagram of flow regimes using modified dimensionless numbers,emphasizing the role of column height in transition between viscous and inertial regimes.These parameters demonstrate enhanced relevance in governing the collapse of immersed granular columns,thereby contributing to a more nuanced understanding of fluid-particle interations in dense granular flows under different regimes.

原文链接:

NETL
NSTL
万方数据

High-entropy materials:Excellent energy-storage and conversion materials in the field of electrochemistry

Jincan LiHuiyu DuanQi LongBianjiang Zhang...

42-60页

查看更多>>摘要：High-entropy materials(HEMs),a new type of materials,have attracted significant attention in the field of electrocatalytic reactions,batteries and energy-storage materials over the past few years owing to their unique structure,controllable elementary composition,and adjustable properties.These excellent characteristics result from four major factors:high entropy,sluggish-diffusion,severe lattice distortion,and cocktail effect,and are used widely in energy-energy applications.This review aims to summarize the recent progress of HEMs in electrochemical energy-storage.We begin with the concept,structure,and four core effects of HEMs that provide the basic information on HEMs.Next,we discuss the major properties of HEMs and analyze the relationship between their structures and properties.Furthermore,we highlight the outstanding performance of HEMs in hydrogen storage,electrode materials of batteries,catalysis,and supercapacitors,and briefly explain the mechanisms of these materials that are crucial in energy storage and conversion.This review will assist in understanding the excellent energy-storage properties,intricacies of the phase structures,elemental interactions,and reaction mechanisms associ-ated with HEMs.Moreover,challenges and future development prospects are summarized.This work will provide insight into the factors that are crucial for designing HEMs with energy storage properties.

原文链接:

NETL
NSTL
万方数据

Measurement of acceleration and angular velocity of particles during a 3D silo discharge

Tongtong MuYiming LiQuan ChenRan Li...

61-71页

查看更多>>摘要：Accurate measurement of the three-dimensional(3D)movement of discrete particles is crucial for comprehending complex granular theology in silos.In this paper,the acceleration and angular velocity of particles in 3D silos are measured by using a spherical detector based on inertial technology and mag-netic positioning technology.The acceleration of particles is the largest in the center of silos,which suggest that the resistance generated by friction and extrusion is the smallest.Surprisingly,the angular velocity distribution follows lognormal function except for particles near the outlet.The correlation between acceleration and angular velocity is opposite in different flow regions.It reveals for the first time that the extent to which the resultant force on the particles affects their rotational motion is related to the flow pattern.These results have practical significance for regulating the granular flow pattern and optimizing the structural design of silos.

原文链接:

NETL
NSTL
万方数据

Investigation of the effects of radial clearance on the screw conveyor performances for different inclinations

Berna BolatBirgül A??(i)o?lu Temizta?Enes Sezer

72-80页

查看更多>>摘要：Screw conveyors are widely used for bulk material transportation.This study investigates the critical role of radial clearance,the gap between the screw and the conveyor body,on performance across various inclination angles.The Discrete Element Method(DEM)is employed to analyze the effects of different radial clearances on conveyor performance for concrete aggregate and sand as bulk materials.Volumetric efficiencies and capacity losses serve as key performance indicators,quantitatively assessed for each radial clearance and inclination combination.Experimental validation is conducted to corroborate the findings.In the study,the optimal radial clearance was identified as 1.5 to 3 times of the particle size.This optimal clearance minimizes the material jamming and increases the performance for screw conveyors with different inclinations and bulk material types as a result.

原文链接:

NETL
NSTL
万方数据

Numerical study of particle behaviours and heat transfer in a complex rotary kiln

Qingshan JianHailin GuKaige WangShuai Wang...

81-94页

查看更多>>摘要：Rotary kiln is widely used for thermal disposal of solid waste due to its effectiveness and high efficiency in recent years.To further improve the processing efficiency,a newly designed rotary kiln with three-section structure is proposed,and the behaviours of particle motion and heat transfer are investi-gated.Firstly,a lab-scale rotary kiln is manufactured,and experiments are carried out.Verified by experimental data,a CFD-DEM numerical model is developed to analyze the particle motion and heat transfer characteristics with the effects of inlet flue gas temperature,feeding rate and rotating speed.The results show that the outlet temperature increases linearly with the flue gas temperature,while it is negatively correlated with the feeding rate and rotating speed.In addition,the volumetric heat transfer coefficient in this complex rotary kiln is analyzed,the overall heat transfer coefficient is between 200 and 700 W/(m3 K).

原文链接:

NETL
NSTL
万方数据

Crystallization of battery-grade lithium carbonate with high recovery rate via solid-liquid reaction

Chaofan WuLongjin JiangWei WangBin Dong...

95-105页

查看更多>>摘要：Lithium carbonate(Li2CO3)stands as a pivotal raw material within the lithium-ion battery industry.Hereby,we propose a solid-liquid reaction crystallization method,employing powdered sodium car-bonate instead of its solution,which minimizes the water introduction and markedly elevates one-step lithium recovery rate.Through kinetic calculations,the Li2CO3 solid-liquid reaction crystallization pro-cess conforms by the Avrami equation rather than shrinking core model,which means the dissolution rate of Na2CO3 is the most important factor affecting the reaction process.The effects of reaction con-ditions such as temperature and stirring speed on the Li2CO3 precipitation behavior were evaluated.The results indicated that temperature is a most essential parameter than other reaction conditions or stir-ring speed.The exceptional 93％recovery of Li2CO3 at 90 ℃ with a remarkable purity of 99.5％was achieved by using 1.2 M ratio of Na2CO3/Li2SO4.This method provides a new idea for the efficient preparation of battery-grade Li2CO3.

原文链接:

NETL
NSTL
万方数据

Permeable and robust polymer-silica hybrid armor on cell catalyst for sustainable biomanufacturing

Yiran ChengZhenhua WuBoyu ZhangJiaxu Zhang...

106-112页

查看更多>>摘要：Inactivated cell catalysis is one of several central techniques in green biomanufacturing realm.However,the instability and leakage of enzymes in inactivated cell severely restrict the practical applications of inactivated cell catalysis.Constructing armor on the surface of inactivated cells affords a feasible and effective strategy to enhance the stability of cells while commonly lowering the permeability.Herein,polymer-silica hybrid armor(PSHA)is directly generated on the surface of enzyme-containing cells.The branched structure of PEI enables higher porosity of cell@PSHA,exhibiting 1.52-fold enhancement in substrate permeability by contrast with cell@silica armor(SA).The electrostatic interactions(NH3+with O-)and hydrogen bonding(N…H or O…H)interactions between structural units enables higher stability of cell@PSHA,showing 3.13-fold elevation in Young's modulus compared with cell@SA.As a result,the cell@PSHA can catalyze continuous conversion of starch to tagatose for 15 batches over 969 h,with an average yield of 77.76 g L-1.

原文链接:

NETL
NSTL
万方数据