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| 1 | Paleoproterozoic reworking of ancient crust in the Cathaysia Block,South China:Evidence from zircon trace elements,U-Pb and Lu-Hf isotopes显示文摘A combined study of zircon LA-ICP-MS U-Pb dating, trace elements and Hf isotope was carried out for gneissic granite from the Sanzhishu area in Jingning, SW Zhejiang Province. Nearly all the zircons separated from the granite exhibited oscillatory zoning and high Th/U ratios (>0.1). The REE profile showed a pronounced positive Ce anomaly, negative Eu anomaly and an enrichment of HREE, which are typical characteristics of magmatic zircon. Thirteen concordant or nearly concordant analytical data yielded a weighted mean 207Pb/206Pb age of 1860±13 Ma (MSWD=0.084), representing the formation age of the granite. The magmatic zircons had negative εHf(t) values of -15.6 to -10.0 and two-stage Hf model ages of 3.1 to 3.4 Ga, indicating that the granites were formed by reworking of ancient crust. The major- and trace-element data indicate that the gneissic granites are metaluminous high-K calc-alkaline rocks and exhibit the same geochemical characteristics as aluminous A-type granites, implying the emplacement of the granite in a post-orogenic extensional tectonic setting. We conclude that the Pa-leoproterozoic crustal reworking event in the Cathaysia Block of South China marked the transition from assembly to break-up of the Columbia supercontinent. | LIU Rui ZHOU Han Wen ZHANG Li ZHONG ZengQiu ZENG Wen XIANG Hua JIN Song LU Xin Qian LI ChunZhong | 2009 | Chinese Science Bulletin2009，54，9： | 22 |
| 2 | Caledonian reworking of Paleoproterozoic basement in the Cathaysia Block: Constraints from zircon U-Pb dating, Hf isotopes and trace elements显示文摘A combined study of zircon U-Pb dating, Hf isotopes and trace elements has been carried out for granodioritic neosomes of migmatites from the Tianjingping area in northwestern Fujian Province. Zircons are characterized by zoning, higher Th/U ratios (mostly ≥0.1), HREE enrichment, and positive Ce and negative Eu anomalies, and show features similar to magmatic or anatectic zircons. Apparent 206Pb/238U ages for the zircons are 447±2 Ma (95% conf., MSWD = 0.88), corresponding to a Caledonian event. εHf(t) values are ?13.3 to ?9.7, indicating a crustal source. Two-stage Hf model ages are 1.7 to 1.9 Ga, suggesting that protolith of the migmates was probably formed in the Paleoproterozoic. The granodioritic neosomes have the characteristics of peraluminous calc-alkaline granite, and their REE patterns and trace elements spidergrams show features of middle to upper crustal rocks. Together with previous studies, we conclude that the protolith of the Cathaysia basement in the Tianjingping area was likely formed in the middle-late Paleoproterozoic and experienced partial melting during the Caledonian period. The recognition of Caledonian reworking of the Paleoproterozoic basement in the Cathaysia Block provides a new insight into the tectonic evolution of the Cathaysia Block in the Caledonian pe- riod and the interaction between the Cathaysia Block and the Yangtze Block. | ZENG Wen ZHANG Li ZHOU HanWen ZHONG ZengQiu XIANG Hua LIU Rui JIN Song LU XinQian LI ChunZhong | 2008 | Chinese Science Bulletin2008，53，6： | 21 |
| 3 | INTERFACIAL ADHESION AND MECHANICAL PROPERTIES OF PMMA-COATED CaCO_(3)NANOPARTICLE REINFORCED PVC COMPOSITES显示文摘Polymethyl methacrylate (PMMA)-coated nano-CaCO3 particles were prepared by in-situ emulsion po- lymerization. The mechanical properties of nano-CaCO3 particles-reinforced PVC were investigated using an AG-2000A universal testing machine and an XJU-2.75 izod impact tester; interfacial adhesion between CaCO3 nanoparticles and PVC matrix by SEM, and structure of PMMA coated on the surface of CaCO3 by FTIR and H-NMR. The results indicate 1 that the PMMA coated on the nano CaCO3 particles consists mainly of syndiotactic structure, and their three tacticity contents were rr 52.8%, mm 7.3% and mr 39.9%, respectively. The interfacial adhesion between CaCO3 nanoparticles and PVC matrix was significantly improved when the CaCO3 nanoparticles were coated with PMMA, which led to in- creased Young’s moduli and tensile strengths of the PMMA-coated CaCO3/PVC composites. The izod impact strengths of the composites were strongly affected by the PMMA coating thickness and increased significantly with increasing the volume fraction of CaCO3 filler in the composites. | Xuehua Chen Chunzhong Li Shoufang Xu Ling Zhang Wei Shao H. L. Du | 2006 | China Particuology2006，4，1： | 11 |
| 4 | A Cost-Effective Co-precipitation Method for Synthesizing Indium Tin Oxide Nanoparticles without Chlorine Contamination显示文摘Indium tin oxide (ITO) nanoparticles with crystallite size of 12.6 nm and specific surface area of 45.7 m 2 ·g-1 were synthesized by co-precipitation method.The indium solution was obtained by dissolving metal indium in HNO3.The tin solution was obtained by dissolving metal tin in HNO3 and followed by stabilizing with citric acid.The free of chlorine ions in the synthesis process brought several advantages:shortening the synthesis time,decreasing the particle agglomeration,decreasing the chlorine content in the ITO nanoparticles and improving the particle sinterability.This is the first time to report the synthesis of ITO nanoparticles free from chlorine contamination without using the expensive metal alkoxides as starting materials. | Haiwen Wang Xiujuan Xu Jianrong Zhang Chunzhong Li | 2010 | Journal of Materials Science & Technology2010，26，11： | 8 |
| 5 | Design of Environmental Monitoring and Control System for Large-scale Pig House with Fermentation Bed显示文摘The design and assembly of environmental monitoring and control system for large-scale pig house with fermentation bed helped to solve the problem of environmental automatic control in piggery.The sensors would monitor the temperature,humidity,light,wind direction,wind speed,CO2,NH3and other parameters.On-line real-time data collection was achieved.The expert system was constructed to control the temperature in piggery below 30℃,to control the air and mattress humidities higher than 65%.Under the conditions of different season or different wind speed,even in day and night,the control actuators were different.The actuators included fanning wet curtain,lighting,micro spraying,spraying,propeller fan,electric aluminum alloy shutter and spraying systems on the roof.The actuators were integrated,and they control the piggery environment simultaneously.The system also designed the remote video monitor interface,parameter-monitoring curved interface and operation interface,which provided a good man-machine interface. | Bo LIU Huiyong ZHENG Yingzhi LIN Shengbing LIU Hongyi ZHENG Chunzhong YOU Huai SHI Jianglin LAN Zhaolong LI Jianyang TANG Qinlou HUANG | 2015 | Agricultural Science & Technology2015，16，2： | 6 |
| 6 | A sol-gel method to synthesize indium tin oxide nanoparticles显示文摘Transparent conductive indium tin oxide (ITO) nanoparticles were synthesized by a novel sol-gel method. Granulated indium and tin were dissolved in HNO3 and partially complexed with citric acid. A sol-gel process was induced when tertiary butyl alcohol was added dropwise to the above solution. ITO nanoparticles with an average crystallite size of 18.5 nm and surface area of 32.6 m2 /g were obtained after the gel was heat-treated at 700 C. The ITO nanoparticles showed good sinterability, the starting sintering temperature decreased sharply to 900 C, and the 1400 C sintered pellet had a density of 98.1% of theoretical density (TD). | Xiuhua Li Xiujuan Xu Xin Yin Chunzhong Li Jianrong Zhang | 2011 | Particuology2011，9，5： | 6 |
| 7 | Preparation of hollow alumina nanospheres via surfactant-assisted flame spray pyrolysis显示文摘Hollow Al2O3 nanospheres with well-defined structure and shape were successfully prepared via flame spray pyrolysis (FSP) in the presence of a surfactant as droplet stabilizer. The morphology and structure of the nanospheres were systematically characterized by transmission electron microscopy, scanning electron microscopy, and N 2 sorption. A solution of hydrated aluminum nitrate, polyethylene glycol (PEG) and absolute ethanol was sprayed into a flame to transform droplets into particles after evaporation and surface nucleation, forming hollow Al2O3 nanospheres from aluminum nitrate decomposition. The surfactant was found effective in producing smaller droplets because of decreased surface tension and viscosity, while the combination of oxygen atoms on PEG chains and aluminum ions in solution reduced interfacial turbulence, leading to increased stability of the droplets. | Yanjie Hu Hongqiu Ding Chunzhong Li | 2011 | Particuology2011，9，5： | 5 |
| 8 | In situ synthesis of CNTs/Fe-Ni/TiO_2 nanocomposite by fluidized bed chemical vapor deposition and the synergistic effect in photocatalysis显示文摘Carbon nanotube(CNTs)/Fe-Ni/TiO_2 nanocomposite photocatalysts have been synthesized by an in situ fluidized bed chemical vapor deposition(FBCVD) method.The composite photocatalysts were characterized by XRD,Raman spectroscopy,BET,FESEM,TEM,UV-vis spectroscopy,and XPS.The results showed that the CNTs were grown in situ on the surface of TiO_2.Fe(lll) in TiO_2 showed no chemical changes in the growth of CNTs.Ni(Ⅱ) was partly reduced to metal Ni in the FBCVD process,and the metal Ni acted as a catalyst for the growth of CNTs.The photocatalytic activities of CNTs/Fe-Ni/TiO_2 decreased with the rise of the FBCVD reaction temperature.For the sample synthesized at low FBCVD temperature(500℃),more than 90% and nearly 50% of methylene blue were removed under UV irradiation in 180 min and under visible light irradiation in 300 min,respectively.The probable mechanism of synergistic enhancement of photocatalysis on the CNTs/Fe-Ni/TiO_2 nanocomposite is proposed. | Lei Ma Aiping Chen Jindong Lu Zhe Zhang Hongbo He Chunzhong Li | 2014 | Particuology2014，12，3： | 5 |
| 9 | Metallic iron nanoparticles:Flame synthesis,characterization and magnetic properties显示文摘Metallic iron(Fe) nanoparticles(NPs) with a typical core-shell structure have been prepared by a simple and continuous flame spray pyrolysis(FSP) method,which are stabilized by the corresponding Fe_3O_4 shell with a thickness of 4-6 nm.The size of metallic Fe cores is about 30-80 nm.The core-shell structured iron NPs show an air stability as long as one month as a result of the protection of oxide shell.Through the control of the residence time of materials in flame and flame atmosphere,metallic Fe and iron oxides are obtained,showing a better external magnetic field responsibility.It is concluded that the evolution of morphology and composition of flame-made magnetic NPs could be attributed to the competition mechanism between reduction and oxidation reactions of in situ flame combustion,which offers more choices and better effective design strategy for the synthesis of advanced functional materials via FSP techniques. | Yunfeng Li Yanjie Hu Guangjian Huang Chunzhong Li | 2013 | Particuology2013，11，4： | 4 |
| 10 | Hierarchical clustering driven by cognitive features显示文摘For data sets of arbitrary shapes and densities,the existing clusterings have much space to be improved to obtain better results.In this paper,clustering is considered as a cognitive problem,and cognitive features are of vital importance to clustering.In combination with psychological experiment,we propose three cognitive features of clustering and model them as a flexible similarity measurement.Meanwhile a new clustering framework is put forward to integrate the cognitive features by employing the similarity measurement.The two attractive advantages are its low complexity and fitness for various types of data sets,such as data sets of diferent shapes and densities.Some synthetic and real data sets are employed to exhibit the superiority of the new clustering algorithm. | LI ChunZhong XU ZongBen QIAO Chen LUO Tao | 2014 | Science China(Information Sciences)2014，57，1： | 4 |
| 11 | Comparative Study on Optical Properties and Scratch Resistance of Nanocomposite Coatings Incorporated with Flame Spray Pyrolyzed Silica Modified via in-situ Route and ex-situ Route显示文摘A new type of transparent scratch resistant coatings including in-situ modified SiO_2(g-SiO_2) in flame spray pyrolysis(FSP) process was prepared. The maximum content of g-SiO_2 in the coating was 15 wt%, which is higher than that of SiO_2 modified by traditional wet chemical route(l-SiO_2, only 10 wt%). The results of transmission electron microscopy have demonstrated that in-situ surface modified g-SiO_2 particles dispersed well with smaller agglomerates in the final coating, which was much better than the particles modified via wet chemical route. Visible light transmittance and haze tests were introduced to characterize the optical quality of the films. All coatings were highly transparent with the visible light transmittance of above 80%, especially for coatings containing g-SiO_2, which exhibited slightly higher visible light transmittance than l-SiO_2 embedded one. The haze value of coatings incorporated with 15wt% g-SiO_2 was 1.85%, even lower than the coating with 5 wt% l-SiO_2(haze value of 2.09%), indicating much better clarity of g-SiO_2. The excellent optical property of g-SiO_2 filled coatings was attributed to the good dispersion and distribution of particles. Nano-indention and nano-scratch tests were conducted to investigate the scratch resistance of coatings on nano-scale. The surface hardness of the coatings rose by 18% and 14%, and the average friction coefficient decreased by 15% and 11%, respectively, compared to the neat coat due to the addition of 10 wt% g-SiO_2 and l-SiO_2. The pencil hardness of the coating with 15 wt% g-SiO_2 increased from 2B for the neat coating to 2H. However, the pencil hardness of coating with 10 wt% l-SiO_2 was only H. The results showed that the g-SiO_2 embedded coatings exhibited higher scratch resistance and better optical properties. | Yun Wang Ling Zhang Yanjie Hu Chunzhong Li | 2016 | Journal of Materials Science & Technology2016，32，3： | 4 |
| 12 | Surface-engineering of layered LiNi_(0.815)Co_(0.15)Al_(0.035)O_2 cathode material for high-energy and stable Li-ion batteries显示文摘Surface engineering is an effective strategy to restrain the generation of rocksalt NiO phase on surface of layered LiNi_(0.815)Co_(0.15)Al_(0.035)O_2(NCA) primary nanoparticles, a representative Ni-rich layered oxides cathode materials. Herein, we demonstrate the kilogram-scale synthesis of few-layer reduced graphene oxide(rGO) conformably coated NCA primary nanoparticles cathode materials by a mechanical wet ball-milling strategy. The lightening rGO coating layer effectively avoids the direct contact of electrolyte and NCA with rapid electrons transfer. As a result, the as-obtained NCA@rGO hybrids with only 1.0 wt% rGO content can deliver a high specific capacity(196 mAh g^(-1) at 0.2 C) and fast charge/discharge capability(127 mAh g^(-1) at 5 C), which is much higher than the corresponding NCA nanoparticles(95 mAh g^(-1) at 5 C). Even after100 cycles at 1 C, 91.7% of initial reversible capacity is still maintained. Furthermore, a prismatic pouch cell(240 mAh) is also successfully assembled with the commercial graphite anode. | Yugang Li Haifeng Yu Yanjie Hu Hao Jiang Chunzhong Li | 2018 | Journal of Energy Chemistry2018，27，2： | 4 |
| 13 | Nanomaterials synthesized by gas combustion flames:Morphology and structure显示文摘The flame technology has been employed broadly for large-scale manufacture of carbon blacks,fumed silica,pigmentary titania,and also ceramic commodities such as SiO2,TiO2,and Al2O3.A deeper understanding of the process also made it possible for production of novel nanomaterials with high functionality-various novel nanomaterials such as nanorods,nanowires,nanotubes,nanocoils,and nanocomposites with core/shell,hollow and ball-in-shell structures,have been synthesized recently via gas combustion technology,while the mechanisms of the material formation were investigated based on the nucleation-growth and chemical engineering principles.Studies of the fluid flow and mass mixing,supported by principles of chemical reaction engineering,could provide knowledge for better understanding of the process,and thus make rational manipulation of the products possible. | Chunzhong Li Yanjie Hu Weikang Yuan | 2010 | Particuology2010，8，6： | 3 |
| 14 | Preparation and Corrosion Resistance of Anodic Oxidation Coatings on 2198 and 5A90 Al-Li Alloys显示文摘2198 and 5A90 Al-Li alloys were anodized with a constant DC potential in 18%H_2SO_4solution(Solu.A) and the mixture solution of 18%H_2SO_4+5%C_2H_2O_4(Solu.B) at room temperature. 12 and 11 V was optimized as the applied oxidation potential for 2198 and 5A90 alloys, respectively. Cross-sectional morphology, surface morphology and elements distribution of anodic oxidation coatings were observed by scanning electron microscope equipped with energy dispersive X-ray analysis(SEM/EDX). Corrosion resistance was tested by potentiodynamic polarization plot in 3.5%NaCl solution. The results showed that the thicknesses of coatings obtained at the selected potential in Solu.A and Solu.B were about 50 μm/110 μm for 2198 alloy and 80 μm/110 μm for 5A90 alloy. In both solutions, anodic oxidation coatings of 2198 alloy were primarily composed of Al oxides; those of 5A90 alloy were mainly consisted of Al oxides and a small amount of Mg oxides. The results of potentiodynamic polarization showed that anodic oxidation coatings of 2198 and 5A90 Al-Li alloys had better corrosion resistances than that of untreated alloys. | 王赫男 LI Xinming HE Linbo CUI Baolei LIU Chunzhong | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，1： | 3 |
| 15 | Nitrogen-doped carbon stabilized Li Fe0.5Mn0.5PO4/rGO cathode materials for high-power Li-ion batteries显示文摘Exploring high ion/electron conductive olivine-type transition metal phosphates is of vital significance to broaden their applicability in rapid-charging devices.Herein,we report an interface engineered Li Fe0.5Mn0.5PO4/rGO@C cathode material by the synergistic effects of r GO and polydopamine-derived N-doped carbon.The well-distributed Li Fe0.5Mn0.5PO4nanoparticles are tightly anchored on r GO nanosheet benefited by the coating of N-doped carbon layer.The design of such an architecture can effectively suppress the agglomeration of nanoparticles with a shortened Li+transfer path.Meantime,the high-speed conducting network has been constructed by r GO and N-doped carbon,which exhibits the face-to-face contact with Li Fe0.5Mn0.5PO4nanoparticles,guaranteeing the rapid electron transfer.These profits endow the Li Fe0.5Mn0.5PO4/rGO@C hybrids with a fast charge-discharge ability,e.g.a high reversible capacity of 105 m Ah·g^-1at 10 C,much higher than that of the Li Fe0.5Mn0.5PO4@C nanoparticles(46 mA·h·g^-1).Furthermore,a 90.8%capacity retention can be obtained even after cycling 500 times at 2 C.This work gives a new avenue to fabricate transition metal phosphate with superior electrochemical performance for high-power Li-ion batteries. | Haifeng Yu Zhaofeng Yang Huawei Zhu Hao Jiang Chunzhong Li | 2020 | Chinese Journal of Chemical Engineering2020，28，7： | 3 |
| 16 | Large-scale synthesis of hollow titania spheres via flame combustion显示文摘A one-step method for continuous large-scale synthesis of well-defined hollow titania spheres was established by feeding titanium tetrachloride mixed with ethanol vapor to a facile diffusion fiame. A mixture of TiCl4 and C2H5OH vapor was transported at 100 m/s into a fiame reactor and condensed into mesoscale droplets due to Joule-Thomson cooling and the entrainment of cool gases into the expanding high-speed jet. Hollow crystalline TiO2 spheres with good thermal stability were formed after the hydrolysis of TiCl4 in the H2/air fiame at about 1500 fiC. Structural characterization indicates that the hollow spheres, with uniform diameter of 300 nm and shell thickness of 35 nm, consist of 20-30 nm TiO2 nanocrystallites. A formation mechanism of the hollow spheres was proposed, involving the competition between chemical reaction and diffusion during the fiame process. The present study provides a new pathway for continuous and large-scale engineering of hollow nanomaterials. | Jie Liu Yanjie Hu Feng Gu Chunzhong Li | 2011 | Particuology2011，9，6： | 3 |
| 17 | NOVEL SYNTHESIS OF ULTRAFINE HOURGLASS-SHAPED ALUMINUM HYDROXIDE PARTICLES显示文摘In a novel method for synthesizing ultrafine aluminum hydroxide particles presented in this paper, the morphology and crystal structure of the particles were investigated by TEM, XRD, etc. The process consisted of two steps: chemical precipitation by acid and carbonation. The product has an hourglass or half-hourglass morphology with a narrow size distribution of 150-200 nm. Major endothermal peak of decomposition was found at 270°C by differential thermal analysis. X-ray diffraction identified the product as bayerite. Those properties were compared with those of alu- minum hydroxide prepared by carbonization only. | Qiuling Zhou Ling Zhang Chunzhong Li Wei Shao | 2006 | China Particuology2006，4，5： | 2 |
| 18 | Formation of pol- ymer/carbon nanotubes nano-hybrid shish-kebab via non-iso- thermal crystallization 显示文摘 | ZHANG Ling TAO Tao LI Chunzhong | 2009 | Polymer2009，50，15： | 1 |
| 19 | Synthesis and Optical Properties of TiO2 Nanoparteles 显示文摘 | Zhao Yin Li Chunzhong Liu Xiuhong | 2007 | Materials Letters2007，61，1： | 1 |
| 20 | Facile flame synthesis and electrochemical properties of carbon nanocoils显示文摘 | Lanjuan Wang Chunzhong Li Feng Gu Chuanxiang Zhang | 2008 | Journal of Alloys and Compounds2008，，1： | 1 |
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