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Preparation of γ-Al_2O_3 Ultrafine Particlesand Its Application in Hydrogen Peroxide Biosensor
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作者 Yan Shaohua Shi Liyi Ying Tailin (School of Chemistry and Chemical Engineering, Shanghai University) 《Advances in Manufacturing》 SCIE CAS 1999年第1期66-69,共4页
In this article, we illustrated the preparation method of γ Al 2O 3 ultrafine particles. The particle size and morphology were decided by a transmission electron microscopy (TEM) and crystal patterns were determin... In this article, we illustrated the preparation method of γ Al 2O 3 ultrafine particles. The particle size and morphology were decided by a transmission electron microscopy (TEM) and crystal patterns were determined by an X ray diffractometer (XRD). γ Al 2O 3 ultrafine particles have ultra characters in physics and chemistry, and the hydrogen peroxide biosensors based on it display not only fast response and high sensitivity, but also good stability. 展开更多
关键词 ultrafine particles horseradish peroxidase methylene blue BIOSENSOR
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Application of Composite Ultrafine Particles in ER Fluids
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作者 张少华 夏国栋 魏宸官 《Journal of Beijing Institute of Technology》 EI CAS 1998年第4期395-399,共5页
Aim To obtain a kind of electrorheological (ER) flind with high comprehensive properties in order to satisfy the needs of engineering application. Methods A new type of dispersed phase── composite ultrafine particle... Aim To obtain a kind of electrorheological (ER) flind with high comprehensive properties in order to satisfy the needs of engineering application. Methods A new type of dispersed phase── composite ultrafine particles (UFP) was obtained by the method of microemulsion, which was used to mix with silicon oil. aam electroinduced stress and apparent viscosity of the ER fluids with three different volume fractions were tested under the conditions of different temperatures, electric fields and shear rates. Results A series of systematic tests show that the new type of ER fluids with volume fraction of 30% possesses obvious ER effect. Conclusion The double layers polarization plays an important role in ER effect. 展开更多
关键词 electrorheology ultrafine particles double layers polarization
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Preparation and hydrogen storage properties of ultrafine pure Mg and Mg-Ti particles 被引量:3
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作者 李镇华 邹建新 +2 位作者 曾小勤 孙海全 丁文江 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第8期1849-1854,共6页
The ultrafine pure Mg and Mg-Ti particles were prepared through a direct current (DC) arc plasma method. The X-ray diffraction (XRD), transmission electron microscopy (TEM), pressure-composition-temperature (PC... The ultrafine pure Mg and Mg-Ti particles were prepared through a direct current (DC) arc plasma method. The X-ray diffraction (XRD), transmission electron microscopy (TEM), pressure-composition-temperature (PCT) method and TG/DTA techniques were used to study the phase components, microstructure and hydrogen sorption properties of the powders before and after hydrogen absorption. It is revealed that most of the ultrafine Mg and Mg-Ti particles are hexagonal in shape with particle size in the range of 50-700 nm. According to the Van’t Hoff equation, the hydrogenation enthalpy of Mg-Ti powders is determined to be about -67 kJ/mol H2 based on the PCT curves of hydrogen absorption plateau pressures. This value is much higher than -78.6 kJ/mol H2 for pure Mg powders. TG/DTA analyses show that the onset dehydriding temperature of hydrogenated Mg-Ti powders is 386 °C, which is significantly lower than that of the hydrogenated Mg (423 °C). The results prove that the addition of Ti into Mg through arc evaporation method can improve the thermodynamic properties of Mg for hydrogen storage. 展开更多
关键词 Mg Mg-Ti DC arc plasma ultrafine particles hydrogen storage
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PREPARATION OF WATERBORNE ULTRAFINE PARTICLES OF EPOXY RESIN BY PHASE INVERSION TECHNIQUE 被引量:6
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作者 杨振忠 许元泽:王胜杰 +1 位作者 俞浩 蔡维真 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1997年第1期92-96,共5页
Waterborne ultrafine particles of epoxy resin were prepared by phase inversion technique. The results of SEM revealed that the particles diameter was in the range of 50 to 100 nm and the effects on amount of water req... Waterborne ultrafine particles of epoxy resin were prepared by phase inversion technique. The results of SEM revealed that the particles diameter was in the range of 50 to 100 nm and the effects on amount of water required at phase inversion point were also discussed. 展开更多
关键词 waterborne ultrafine particles bisphenol A epoxy resin phase inversion technique
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Preparation and Characterization of CeO_2-ZrO_2 Solid Solution Ultrafine Particles Using Reversed Microemulsion 被引量:4
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作者 安源 李丽 +1 位作者 王军 沈美庆 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第4期416-419,共4页
Ce0.6Zr0.4O2 solid solution ultrafine particle was prepared in the cyclohexane/water/OP-10/n-hexanol reversed microemulsion. The quasi-ternary phase diagram investigations showed that the system has narrow W/O type mi... Ce0.6Zr0.4O2 solid solution ultrafine particle was prepared in the cyclohexane/water/OP-10/n-hexanol reversed microemulsion. The quasi-ternary phase diagram investigations showed that the system has narrow W/O type microemulison region, so it is the proper system to prepare Ce0.6Zr0.4O2 solid solution ultrafine particle. Some physical-chemical techniques such as TG/DTA, XRD, BET, and HRTEM are used to characterize the resultant powders. The results show that the fluorite cubic Ce0.6Zr0.4O2 solid solution is obtained at 400 ℃. The surface area is (146.7 m^2·g^-1), which is higher than the surface area for sol-gel prepared sample (59.5m^2·g^-1). HRTEM images indicated that the Ce0.6Zr0.4O2 solid solution ultrafine particle is well-crystallized, narrow size distribution, less agglomeration, within mean size of 5 -7 nm. 展开更多
关键词 reverse microemulsion CEO2-ZRO2 solid solution ultrafine particle rare earths
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Sources,characteristics,toxicity,and control of ultrafine particles:An overview 被引量:2
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作者 Andrea L.Moreno-Ríos Lesly P.Tejeda-Benítez Ciro F.Bustillo-Lecompte 《Geoscience Frontiers》 SCIE CAS CSCD 2022年第1期512-526,共15页
Air pollution by particulate matter(PM)is one of the main threats to human health,particularly in large cities where pollution levels are continually exceeded.According to their source of emission,geography,and local ... Air pollution by particulate matter(PM)is one of the main threats to human health,particularly in large cities where pollution levels are continually exceeded.According to their source of emission,geography,and local meteorology,the pollutant particles vary in size and composition.These particles are conditioned to the aerodynamic diameter and thus classified as coarse(2.5–10μm),fine(0.1–2.5μm),and ultrafine(<0.1μm),where the degree of toxicity becomes greater for smaller particles.These particles can get into the lungs and translocate into vital organs due to their size,causing significant human health consequences.Besides,PM pollutants have been linked to respiratory conditions,genotoxic,mutagenic,and carcinogenic activity in human beings.This paper presents an overview of emission sources,physicochemical characteristics,collection and measurement methodologies,toxicity,and existing control mechanisms for ultrafine particles(UFPs)in the last fifteen years. 展开更多
关键词 Particulate matter ultrafine particles Air pollution TOXICITY Measurement methodologies
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Preparation of Ultrafine γ-Al_2O_3 Particles in Non-ionic Water in Oil Microemulsions 被引量:2
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作者 施利毅 华彬 张剑平 《Advances in Manufacturing》 SCIE CAS 1997年第2期163-167,共5页
Ultrafine γ-A12O3 particles are synthesized in Triton X- 10 0/n - hexanol/cycloh exan e/wat er water in o if(w/o )Inicroemulsion by mixing two separately prepared microemulsions containing Al(NO)3 and (Wb)ZCO, respec... Ultrafine γ-A12O3 particles are synthesized in Triton X- 10 0/n - hexanol/cycloh exan e/wat er water in o if(w/o )Inicroemulsion by mixing two separately prepared microemulsions containing Al(NO)3 and (Wb)ZCO, respectively.The ultrafine Al2O3 particles are characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD)and their size and distribution are measured. The effects of water, surfactallt and reactant concentrations on the particlesize and distribution are studied. The results show that the particle size and distribution can be changed by varying thepreparation conditions, and the size of the microemulsion droplets has a controlling effect on the size of the pafticles. A. possible mechanism of ultrafine particles (UFPs) prepared by microemulsions is proposed. 展开更多
关键词 ultrafine particles aluminum oxide w/o microemulsion
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Morphology and Structure Analyses of SnO2 Thin Film Coated on Al2O3 Ultrafine Particles by Gas Phase Reaction in Fluidized Bed 被引量:1
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作者 Hua Bin Shi Liyi (School of Chemistry and Chemical Engineering, Shanghai University) Li Chunzhong (Institute of Technical Chemistry and Physics, East China University of Science and Technology) 《Advances in Manufacturing》 SCIE CAS 1999年第1期62-65,共4页
Fluidized chemical vapor deposition (FCVD) technology was developed for coating SnO 2 thin film on ultrafine Al 2O 3 particles.Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) ... Fluidized chemical vapor deposition (FCVD) technology was developed for coating SnO 2 thin film on ultrafine Al 2O 3 particles.Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) analyses demonstrated that SnO 2 films with different structures were deposited through controlling the coating temperature, reactant concentration, etc .. Nanocrystalline SnO 2 film was formed at 572.15K by gas phase reaction of SnCl 4 and H 2O.Electron probe microanalyser (EPMA) and energy dispersive spectrometer (EDS) analyses indicated that the distribution of nanocrystalline SnO 2 over inner and outer part of the Al 2O 3 agglomerates was homogeneous. 展开更多
关键词 thin film coating ultrafine particles nanocrystalline film chemical vapor deposition FLUIDIZATION
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Specific Property of Ultrafine Particle Classification 被引量:1
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作者 黎国华 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2003年第2期82-84,共3页
In the process of ultrafine particle classification,the separation curve,which reflects the characteristics of separating process,is frequently influenced by the characteristics of separation flow field and operating ... In the process of ultrafine particle classification,the separation curve,which reflects the characteristics of separating process,is frequently influenced by the characteristics of separation flow field and operating parameters,etc.This paper introduces the concept of system deviation and deduces the calculating method of the separation curves.Meanwhile,it analyses the influences of classification flow field's specific properties and some operating parameters on the separation curves.The results show that,in the process of ultrafine particle classification,the local vortex in the separation field improves the separation efficiency to a certain degree,but the accuracy will decrease;the coacervation action of particles will seriously influence the classification accuracy. 展开更多
关键词 ultrafine particle CLASSIFICATION separation curve system deviation
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Studies on the Lanthanum-Modified Lead Titanate Ultrafine Particles by Raman Spectroscopy 被引量:1
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作者 CUI Ai-li GE Xu-dong +2 位作者 HU Yong-qi JIN Yong WANG Xiao-hui 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1998年第2期76-79,共4页
Lanthanummodified lead titanate(PLT14) ultrafine particles were synthesized by means of stearic acid gel method. The structure of the samples was characterized using Xray diffraction(XRD) and TEM. The crystal graphic ... Lanthanummodified lead titanate(PLT14) ultrafine particles were synthesized by means of stearic acid gel method. The structure of the samples was characterized using Xray diffraction(XRD) and TEM. The crystal graphic parameters of the samples were calculated. The Raman spectra of PLT14 powders at a high pressure as well as a high temperature reveal that the phase transition pressure or temperature shifts to a lower pressure or temperature with the decrease of grain size. 展开更多
关键词 Raman spectrum PLT ultrafine particle Size effect
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MICROSTRUCTURAL STUDIES OF ULTRAFINE IRON PARTICLES 被引量:1
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作者 WANG Shuhe CAI Yuling AN Gang WEN Lishi ZHUANG Yuzhi Institute of Metal Research,Academia Sinica,Shenyang,China WANG Shuhe,Associate Professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1990年第8期136-139,共4页
The constitution,structure and surface state of the ultrafine iron particles prepared by gas evaporation technique have been investigated by means of X-ray analysis,high-reasolution electron microscopy(HREM)and electr... The constitution,structure and surface state of the ultrafine iron particles prepared by gas evaporation technique have been investigated by means of X-ray analysis,high-reasolution electron microscopy(HREM)and electron spectroscopy for chemical analysis(ESCA).The results showed that the fine particles are spherical ones of~20 nm in diameter with α-Fe cores and covered by Fe_3O_4 fine crystalline layers of~4 nm thickness. 展开更多
关键词 ultrafine particle MICROSTRUCTURE high-resolution lattice image
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Mssbauer Effect in Ultrafine Particles with Fe-C Solid Solution,γ-Fe and Fe_3C Phases 被引量:1
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作者 Xinglong DONG Zhidong ZHANG and Xinguo ZHAO (Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China)Yuesheng CHAO (College of Science, Northeastern University, Shenyang 110006, China)Souri JIN and Weimin SUN (Lab. of Ultrafine P 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1998年第5期441-446,共6页
Ultrafine particles prepared by evaporating pure Fe in CH4 atmosphere using arc-dischargeheating method, were found to consist of Fe-C solid solution, γ-Fe and Fe3C phases. EfFect of annealing temperature on phase tr... Ultrafine particles prepared by evaporating pure Fe in CH4 atmosphere using arc-dischargeheating method, were found to consist of Fe-C solid solution, γ-Fe and Fe3C phases. EfFect of annealing temperature on phase transformation and hyperfine interactions has been investigated by Mossbauer spectroscopy, X-ray diffraction (XRD), differential thermal analysis and thermogravimetry (DTA-TG), transmission electron microscopy (TEM), oxygen determination and vibrating sample magnetometer (VSM) measurements. It was observed that phase transformation of γ-Fe to α-Fe occurs during annealing in vacuum. The mechanism causing the change of hyperfine interactions with annealing temperature differs for Fe-C solution and interstitial compounds. DifFerence of hyperfine interactions of Fe-C solid solution in the starting sample and its annealed samples is ascribed to the improvement of activation of interstitial carbon atoms. Stress-relieving in structure of annealed Fe3C particle can result in a weak influence on hyperfine interactions. Parameters fitted to the Mossbauer spectra show the existence of superparamagnetism in all the samples. Absorbed and combined oxygen on particle surface of the starting sample were determined. 展开更多
关键词 Fe and Fe3C Phases ssbauer Effect in ultrafine particles with Fe-C Solid Solution FIGURE II
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Studies on the Preparation and Catalyticproperties of Fe-C-Mn Ultrafine particle Catalyst in F-T synthesis 被引量:1
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作者 ZHANG Jing-chang LU jiang-yin CAO Wei-liang and YANG Lin-shong(Dept. of Appl. Chem., Beijing Univerity of Chemical Technology, Beijing, 100029) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1996年第1期87-91,共5页
Based on the Fe/C ultrafine particle obtained by means of laser pyrolysis method, a series of Fe-C-Mn ultrafine particle catalysts for F-T synthesis were prepared by adding certain amounts of Mn organic compounds to t... Based on the Fe/C ultrafine particle obtained by means of laser pyrolysis method, a series of Fe-C-Mn ultrafine particle catalysts for F-T synthesis were prepared by adding certain amounts of Mn organic compounds to the Fe/C UFP. XRD and TEM tests for the obtained catalysts showed that the active phases, α-Fe, Fe3Cand (Fe,Mn)O. were directly obtained. and that the particle size was in the range of 2-4 nm. The catalysts so obtained have stable structure, long life, high activity and selectivity for light olefins, especially for propylene. Testing of the crystal structure in the process of the reaction demonstrated the carbonide mechanism of FT synthesis and the presence of α-Fe, FexCy and (Fe, Mn)O, thus supporting the belief that these are the active phases. 展开更多
关键词 F-T synthesis ultrafine particle Fe-C-Mn catalyst
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Preparation of Ultrafine Starch Particle and its Application in Paper Coating 被引量:2
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作者 JinGang Liu JiaFu Wang +4 位作者 YanFen Du BiSong Wang HongCai Li YanQun Su JingHuan Chen 《Paper And Biomaterials》 2017年第1期26-31,共6页
Despite its biodegradability, adequate cohesive strength and comparatively low cost, the use of cooked starch as a paper coating binder is limited due to its high viscosity and serious negative impact on the gloss. St... Despite its biodegradability, adequate cohesive strength and comparatively low cost, the use of cooked starch as a paper coating binder is limited due to its high viscosity and serious negative impact on the gloss. Starch-based bio-latex with size in the nanometer or sub-micrometer range has been developed recently to overcome these shortcomings. In this study, ultrafine starch particle(UFSP) was prepared by mechanical milling using a DYNO mill in combination with light chemical pretreatment. Model coating colors containing different dosages of UFSP were applied to base paper and the properties of the coated papers were evaluated. The results showed that the UFSP was disc-shaped with a median particle diameter of 167 nm. Water retention capacity of the coating colors was improved considerably with the addition of UFSP, i.e., the water retention value decreased by nearly 40% when styrene-butadiene latex was replaced by UFSP at a dosage of 3 pph(per hundred parts of pigment). The high shear rate viscosities of the coating colors containing no more than 2 pph of USFP were similar to that of the control coating color at shear strain rate higher than 2000 s^(-1). The properties and performances of the coated papers were comparable to the control coated paper with single synthesized latex binder. The gloss and the print gloss of paper samples with or without USFP were 59.7% and 58.2%, 79.0% and 78.8%, respectively. Surface strength of paper samples with or without USFP were 0.96 and 0.90 m/s, respectively, while the ink absorptivity values were 34% and 33%. This study demonstrates a promising approach to obtain submicrometer sized starch for paper coating. 展开更多
关键词 ultrafine starch particle mechanical milling coating colorproperty coated paper performance
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Characterization and Growth Morphology of the Ultrafine Manganese Particles
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作者 Jian XU Xiukui SUN Wenxiu CHEN Wenduo WEI State Key Laboratory of RSA,Institute of Metal Research,Academia Sinica,Shenyang 110015,China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1993年第3期210-214,共5页
In present work.the ultrafine manganese particles were prepared by gas evaporation method.The structure,size distribution,growth morphology and surface oxidation for the particles were investi- gated by using X-ray di... In present work.the ultrafine manganese particles were prepared by gas evaporation method.The structure,size distribution,growth morphology and surface oxidation for the particles were investi- gated by using X-ray diffraction and electron microscopy.The results indicated that three types of the particles,with the structure of α-Mn,β-Mn and one unknown,respectively existed in the man- ganese particles.The growth morphology of the particles depended on the size and intrinsic structure.When exposed to air,the particles were slightly oxidized only in the surface layer and sta- ble in air. 展开更多
关键词 ultrafine particle MANGANESE gas evaporation growth morphologv
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Effect of Ultrafine Particles on Flow Field and Transport Properties near the Interface Around a Moving Bubble
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作者 马友光 徐世昌 +1 位作者 冯惠生 余国琮 《Transactions of Tianjin University》 EI CAS 2004年第1期1-4,共4页
Laser Doppler Anemometer has been used to measure the flow field characteristics near the interface around a moving bubble in the presence of ultrafine particles. In order to model a moving bubble, the bubble was fixe... Laser Doppler Anemometer has been used to measure the flow field characteristics near the interface around a moving bubble in the presence of ultrafine particles. In order to model a moving bubble, the bubble was fixed into the counter flow liquid by a metal mesh. Experimental materials are air and water, and the particles are complex oxidate powder. Experiments were carried out under the operating conditions: the liquid flow velocity u 0 is 12.6 cm/s, the equivalent diameter d e is 0.6 cm, the mass concentration of particle is 0.2 0 0 ,the average particle diameter is about 10 nm and the density is 2 g/cm 3. The velocity profiles of both frontal and tail vortex areas were measured respectively. The experimental results show that the velocity fields are obviously changed in the existence of particles. In the frontal area of the bubble, both tangential and normal velocities decrease due to the presence of particles, but in tail vortex area, the tangential velocities increase remarkably, and normal velocities rise gradually from the center towards the fringe in the opposite tendency to that of no particles. The influences of flow field change in the presence of particles on gas liquid mass transfer are analyzed and discussed. 展开更多
关键词 Laser Doppler Anemometer ultrafine particle moving bubble flow field velocity distribution
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PREPARATION OF ULTRAFINE PARTICLE IRON-CARBONIDE CATALYST AND CHARACTERIZATION OF ITS CATALYTICAL BEHAVIOR
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作者 Jing Chang ZHANG Ming Ming WU Jing Yun LU Guang Sheng GUO Xiao Dong HE Fu Ming YANG Dept.of Appl.Chem.,Beijing Institute of Chemical Technology,Beijing 100029 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第3期275-278,共4页
Studies on ultrafine particle catalyst have attracted many researchers' attention by its large surface area,higher activity and selectivity.Based on the mechanism of α-Fe and Fe_xC_y as the catalytical active spe... Studies on ultrafine particle catalyst have attracted many researchers' attention by its large surface area,higher activity and selectivity.Based on the mechanism of α-Fe and Fe_xC_y as the catalytical active species this paper reports for the first time the preparation method of Fe_3C ultrafine parti- cle catalyst,from highly dispersed amorphous Fe powder and free carbon.The Fe powder and free car- bon,prepared by laser pyrolysis technique,was then treated by washing and heating at high tempera- ture protected with N_2.The catalyst prepared under different experimental conditions was characterazed by means of XRD,electronic diffraction and TEM.It shows that the crystlline grain size is in a range of 1-4nm and composed of Fe_3C and α-Fe.It has been found that the ultrafine particle iron-carbonide catalyst exhibited much higher activity and selectivity to light olefins.At the standard atmosphere and 380℃ reaction temperature,the conversion of CO reached a maximum of 80%. 展开更多
关键词 PREPARATION OF ultrafine particle IRON-CARBONIDE CATALYST AND CHARACTERIZATION OF ITS CATALYTICAL BEHAVIOR XRD Zhang ITS
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STRUCTURE AND SURFACE CONDITION OF ULTRAFINE AI PARTICLES
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作者 SUN Xiukui CHEN Wenxiu XU Jian FAN Xueshu WEI Wenduo State Key Laboratory of Rapidly Solidified Non-Equilibrium Alloys,Institute of Metal Research,Academia Sinica,Shenyang,ChinaWU Yukun PENG Yingguo Laboratory of Atomic Imaging of Solids,Institute of Metal Research,Academia Sinica,Shenyang,China Associate Professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1992年第6期402-408,共7页
The crystal habit,crystalline structure,surface condition and composition of the ultrafine Al particles prepared by inert gas evaporation method were studied in detail by means of high resolution transmission electron... The crystal habit,crystalline structure,surface condition and composition of the ultrafine Al particles prepared by inert gas evaporation method were studied in detail by means of high resolution transmission electron microscope,X-ray diffraction and X-ray photo-electron spectrum.The results indicate that the ultrafine Al particles prepared in high pure inert gas are of clear crystal habits,single crystal in a large majority and fcc crystalline structure with a_0=0.405 nm.It is also found on the surface of the Al particles that there is a layer of amor- phous Al_2O_3 with 2 nm average thickness,which could protect the particles against oxidizing further.Therefore,the ultrafine Al particles prepared by the inert gas evaporation method are very stable in atmosphere. 展开更多
关键词 ultrafine Al particle STRUCTURE surface condition amorphous alumina
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Photoluminescence Studies on Ferric Oxide Ultrafine Particles
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作者 ZHANG Yan AI Xi-cheng +2 位作者 XIAO Liang-zhip FEI Hao-sheng and LI Tie-jin (Department of Chemistry , Department of Physics, Jilin University,Changchun, 130023 ) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1994年第2期146-148,共3页
PhotoluminescenceStudiesonFerricOxideUltrafineParticlesZHANGYan;AIXi-cheng;XIAOLiang-zhip;FEIHao-sheng;andLI... PhotoluminescenceStudiesonFerricOxideUltrafineParticlesZHANGYan;AIXi-cheng;XIAOLiang-zhip;FEIHao-sheng;andLITie-jin(Departmen... 展开更多
关键词 ultrafine particles Quantum size effect Surface modification PHOTO-LUMINESCENCE
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Preparation and Characterization of Monodispersed Co_2O_3 Ultrafine Particle Sol
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作者 Zhang Yan, Zhou Bingsuo Xiao Liangzhi (Department of Chemistry, Jilin University, Changchun)Shi Suhua (Department of Mineral Analysis and Geochemistry, Changchun University of Earth Sciences, Changchun)Meng Zhaofu (Materials Institute, Jilin University, Changchun) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1991年第1期62-64,共3页
The present, paper contains a new composite material Co;O;UFP sol prepared by using W/O microemulsion method, and its size distribution, interracial and optical nonlincar properties are discussed. The method for the p... The present, paper contains a new composite material Co;O;UFP sol prepared by using W/O microemulsion method, and its size distribution, interracial and optical nonlincar properties are discussed. The method for the preparation of UFP sol is as follows: at first, CoCl;and DBS so- 展开更多
关键词 MONODISPERSE Composite material ultrafine particle sol
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