|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Organochlorine compounds and polycyclic aromatic hydrocarbons in surface sediment from Baiyangdian Lake,North China:Concentrations,sources profiles and potential risk显示文摘Organochlorine pesticides(OCPs),polychlorinated biphenyls(PCBs),and polycyclic aromatic hydrocarbons(PAHs) were determined in nineteen surface sediment samples collected from Baiyangdian Lake and its inflowing river(Fuhe River) in North China.Total concentrations of OCPs,PCBs and PAHs in sediments ranged from 5.4 to 707.6 ng/g,2.3 to 197.8 ng/g,and 101.3 to 6360.5 ng/g,respectively.The levels of contaminants in Fuhe River were significantly higher than those in Baiyandian Lake.For hexachlorocyclohexane(HCHs) and dichlorodiphenytrichloroethanes(DDTs),α-HCH and p,p-DDT were predominant isomers;while for PCBs,PCB 28/31,PCB 40/103,PCB 60,PCB 101,and PCB 118 were predominant congeners.Possible sources derived from historical usage for OCPs and incomplete combustion fuel,wood,and coal and exhaustion of boats or cars for PAHs.Risk assessment of sediment indicated that sediments in Fuhe River were likely to pose potential biological adverse impact. | Guocheng Hu Xiaojun Luo Fengchao Li Jiayin Dai Jianyang Guo Shejun Chen Cao Hong Bixian Mai Muqi Xu | 2010 | Journal of Environmental Sciences2010，22，2： | 42 |
| 2 | A review of polybrominated diphenyl ethers and alternative brominated flame retardants in wildlife from China:Levels,trends,and bioaccumulation characteristics显示文摘Accelerated industrialization and urbanization,and unregulated disposal of waste of electric and electronic equipment(e-waste) in China have caused environmental pollution of brominated flame retardants(BFRs).This review summarized the levels,trends,and bioaccumulation characteristics of polybrominated diphenyl ethers(PBDEs) and other potential alternative BFRs including hexabromocyclododecanes(HBCDs),1,2-bis(2,4,6-dibromophenoxy) ethane(BTBPE) and decabromodiphenylethane(DBDPE) in wildlife from China.PBDE levels in wildlife from China were generally higher than those from other parts in Asia,and were comparable to those from Europe but were lower than those from North America.However,wildlife from the e-waste recycling sites in South China and East China contained much higher PBDEs compared to other reports around the world,suggesting the heavy contamination of PBDEs in these regions.The alternative BFRs were also detected in wildlife,revealing that the animals are exposed to these chemicals,in addition to PBDEs.Temporal trends indicated by levels in marine mammals from South China suggested that PBDE levels increased from the beginning of 1990s to 2000s,but decreased from the middle of 2000s,followed by relatively steady levels.In contrast,HBCDs were found to be continuously increasing from 1997 to 2007,indicating the increasing usage of HBCDs in China in recent years.Compared to PBDE profiles found in other parts,aquatic species and birds from China contained relatively higher contributions of BDE28 and 209,respectively,suggesting the possible different usage pattern of PBDEs.Future works including keeping monitoring at a reasonable scale and frequency to make sure levels near urban centers indicative of population do not increase are needed.Additionally,focus effort on e-waste recycling regions to look for impacts and to determine if regulation/controls are resulting in lower environmental contamination,and incorporation of sentinel species in monitoring efforts are recommended. | Jiangping Wu Ying Zhang Xiaojun Luo Yazhe She Lehuan Yu Shejun Chen Bixian Mai | 2012 | Journal of Environmental Sciences2012，24，2： | 15 |
| 3 | Advances in the study of current-use non-PBDE brominated flame retardants and dechlorane plus in the environment and humans显示文摘The fate of the high production volume,currently in use,and not regulated non-polybrominated diphenyl ether(PBDE) flame retardants,such as tetrabromobisphenol A(TBBPA) ,hexabromocyclododecane(HBCD) and dechlorane plus(DP),and the alternative flame retardants of PBDE,such as BTBPE and DBDPE,in the environment has attracted increasing attention and aroused concern due to the increasing regulation and phasing-out of PBDEs.This paper reviews the distribution,bioaccumulation,human exposure and environmental behavior of those non-PBDE flame retardants in various environmental compartments.The data gaps and needs for future research are discussed. | LUO XiaoJun,CHEN SheJun,MAI BiXian & FU JiaMo State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China | 2010 | Science China Chemistry2010，53，5： | 12 |
| 4 | Properties of TiAICrN coatings prepared by vacuum cathodic arc ion plating显示文摘TiAlCrN 涂层在 TC11 (Ti-6.5Al-3.5Mo-1.5Zr-0.3Si ) 钛合金底层上借助于真空 cathodic 弧离子 plating 技术被扔。氮化物涂层的作文,阶段结构,机械表演,和氧化抵抗被扫描电子调查显微镜学(SEM ) ,原子力量显微镜(AFM ) , X 光检查衍射(XRD ) ,钻电子光谱学(AES ) ,和 X 光检查光电子显微镜学(XPS ) 。为准备钛合金的保护的涂层的一个新过程成功地被获得。试验性的结果显示在 TiAlN 涂层的增加的元素铬做贡献形成(220 ) 比较喜欢方向。涂层的阶段由组成(Ti,艾尔) N 并且(Ti, Cr ) N。在 700 琠敨 ? 佩 ? 敷敲眠汥? 牣獹慴汬穩摥椠 ? 桴 ? 整牴条湯污猠牴 ' | RU Qiang HU Shejun HUANG Nacan ZHAO Lingzhi QIU Xiuli HU Xianqi | 2008 | Rare Metals2008，27，3： | 9 |
| 5 | Ab initio study of the effects of Ag/Mn doping on the electronic structure of LiFePO_4显示文摘Based on density functional theory (DFT) of the first-principle for the cathode materials of lithium ion battery, the electronic structures of Li(Fe1-xMex)PO4 (Me = Ag/Mn, x = 0―0.40) are calculated by plane wave pseudo-potential method using Cambridge serial total energy package (CASTEP) program. The calculated results show that the Fermi level of mixed atoms Fe1-xAgx moves into its conduction bands (CBs) due to the Ag doping. The Li(Fe1-xAgx)PO4 system displays the periodic direct semiconductor characteristic with the increase of Ag-doped concentration. However, for Fe1-xMnx mixed atoms, the Fermi level is pined at the bottom of conduction bands (CBs), which is ascribed to the interaction be-tween Mn(3d) electrons and Fe(4s) electrons. The intensity of the partial density of states (PDOS) near the bottom of CBs becomes stronger with the increase of Mn-doped concentration. The Fermi energy of the Li(Fe1-xMnx)PO4 reaches maximum at x = 0.25, which is consistent with the experimental value of x = 0.20. The whole conduction property of Mn-doped LiFePO4 is superior to that of Ag-doped LiFePO4 cathode material, but the structural stability is reverse. | HOU XianHua HU SheJun LI WeiShan ZHAO LingZhi RU Qiang YU HongWer HUANG ZhaoWen | 2008 | Chinese Science Bulletin2008，53，11： | 9 |
| 6 | Lithium intercalation/de-intercalation behavior of a composite Sn/C thin film fabricated by magnetron sputtering显示文摘A tin film of 320 nm in thickness on Cu foil and its composite film with graphite of ~50 nm in thickness on it were fabricated by magnetron sputtering. The surface morphology, composition, surface distributions of alloy elements, and lithium intercalation/de-intercalation behaviors of the fabricated films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), electron probe microanalyzer (EPMA), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma atomic emission spectrometry (ICP), cyclic voltammetry (CV), and galvanostatic charge/discharge (GC) measurements. It is found that the lithium intercalation/de-intercalation behavior of the Sn film can be significantly improved by its composite with graphite. With cycling, the discharge capacity of the Sn film without composite changes from 570 mAh/g of the 2nd cycle to 270 mAh/g of the 20th cycle, and its efficiency for the discharge and charge is between 90% and 95%. Nevertheless, the discharge capacity of the composite Sn/C film changes from 575 mAh/g of the 2nd cycle to 515 mAh/g of the 20th cycle, and its efficiency for the discharge and charge is between 95% and 100%. The performance improvement of tin by its composite with graphite is ascribed to the retardation of the bulk tin cracking from volume change during lithium intercalation and de-intercalation, which leads to the pulverization of tin. | ZHAO Lingzhi HU Shejun LI Weishan LI Liming HOU Xianhua | 2008 | Rare Metals2008，27，5： | 8 |
| 7 | Dead lithium phase investigation of Sn-Zn alloy as anode materials for lithium ion battery显示文摘In this work, based on First-principle plane wave pseudo-potential method, we have carried out an in-depth study on the possible dead lithium phase of Sn-Zn alloy as anode materials for lithium ion batteries. Through investigation, we found that the phases LixSn4Zn4(x = 2, 4, 6, 8) contributed to re-versible capacity, while the phases LixSn4Zn8-(x-4)(x = 4.74, 7.72) led to capacity loss due to high forma-tion energy, namely, they were the dead lithium phases during the charge/discharge process. And we come up with a new idea that stable lithium alloy phase with high lithiation formation energy (dead lithium phase) can also result in high loss of active lithium ion, besides the traditional expression that the formation of solid electrolyte interface film leads to high capacity loss. | HUANG ZhaoWen HU SheJun HOU XianHua RU Qiang YU HongWen ZHAO LingZhi LI WeiShan | 2009 | Chinese Science Bulletin2009，54，6： | 6 |
| 8 | Effects of Ti_(0.5)Al_(0.5)N coatings on the protecting against oxidation for titanium alloys显示文摘Ti0.5Al0.5N coatings were deposited on TC11(Ti-6.5Al-3.5Mo-1.5Zr-0.3Si) and silicon substrates using a cathode arc ion-plating system.The microstructure, composition, phase structure, and oxidation-resistance of the alloys and nitride coatings were investigated by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, Auger electron spectroscopy, and thermal analyzer.The results show that the oxidation resistance of the titanium alloy is relatively limited;the compound structures of Ti mixed with Al oxides are formed during the heating process.The phases of the Ti0.5Al0.5N coatings are composed of a TiN solid solution phase.The oxidation kinetics obeys the parabolic law.During the oxidation process, the selective oxidation of Al occurs, thus protecting the underlying coating and substrate. | RU Qiang HU Shejun | 2010 | Rare Metals2010，29，2： | 6 |
| 9 | TiO_2-coated SnO_2 hollow spheres as anode materials for lithium ion batteries显示文摘TiO2-coated SnO2(TCS) hollow spheres,which are new anode materials for lithium ion(Li-ion) batteries,were prepared and characterized with X-ray diffraction(XRD) ,scanning electron microscopy(SEM) ,transmission electron microscopy(TEM) ,cyclic voltammetry(CV) ,and galvanostatic charge/discharge tests.The results obtained from XRD,SEM,and TEM show that TiO2 can be uniformly coated on the surface of SnO2 hollow spheres with the assistance of anionic surfactant.The cyclic voltammograms indicate that both TiO2 and SnO2 ex-hibit the activity for Li-ion storage.The charge/discharge tests show that the prepared TCS hollow spheres have a higher reversible coulomb efficiency and a better cycling stability than the uncoated SnO2 hollow spheres. | YI Jin LI Xiaoping HU Shejun LI Weishan ZENG Ronghua FU Zhao CHEN Lang | 2011 | Rare Metals2011，30，6： | 4 |
| 10 | First principles studies on the electronics structures of(Li_(1-x)Me_x)FePO_4(Me=Na and Be)显示文摘Based on density functional theory(DFT)of the first-principle for cathode materials of lithium ion battery,the electronic structures of(Li1-xMex)FePO4(Me=Na and Be,x=0-0.40)are calculated by plane wave pseudo-potential method using Cambridge serial total energy package(CASTEP)program.The calculated results show that Li-site doping can improve the electronic conductivity enormously.Doping with Na has a noticeable effect on improving its electrical conductivity.However,serious structural distortion will occur when its doping density is beyond 0.25.In view of this,the best density of doping Na is less than 0.25.Doping with Be has an inconspicuous effect on increasing its electrical conductivity and has good cyclical stability,but it cannot achieve as good results as when it is doped with Na.Therefore we cannot find a middle ground between the two proposals.Considering cost and environmental protection,it is ideal to choose Na.So this method gives a reasonable prediction to the improvement of electronic conductivity through Li-site doping in LiFePO4 material. | HOU XianHua HU SheJun | 2010 | Chinese Science Bulletin2010，55，27： | 4 |
| 11 | First-principles calculations and experimental studies of Sn-Zn alloys as negative electrode materials for lithium-ion batteries显示文摘The physical characters and electrochemical properties of various phases in a Sn-Zn electrode,such as formation energy,plateau potential,specific capacity,as well as volume expansion,were calculated by the first-principles plane-wave pseudo-potential method based on the density functional theory.Sn-Zn films were also deposited on copper foils by an electroless plating technique.The actual composition and chemical characters were explored by scanning electron microscopy (SEM),X-ray diffraction (XRD),plasma atomic emission spectrometry (ICP),and constant current charge/discharge measurements (CC).The results show that separation phases with tin and zinc including a small quantity of Cu6Sn5 phase were obtained,the initial lithium insertion capacity of the Sn-Zn film was 661 mAh/g,and obvious potential plateaus of about 0.4 V and 0.7 V were displayed,which is in accordance with the results of theoretical calculations.The capacity of the Sn-Zn film decreased seriously with the increase of cycle number. | RU Qiang PENG Wei ZHANG Zhiwen HU Shejun LI Yanling | 2011 | Rare Metals2011，30，2： | 3 |
| 12 | Distribution of polybrominated diphenyl ethers in sediment of the Pearl River Delta and adjacent South China Sea显示文摘 | MAI Bixian CHEN Shejun LUO Xiaojun | 2005 | Environ Sci Technol2005，39，10： | 1 |
| 13 | 显示文摘 | Li Wang Zeng Qingguang Hu Shejun | 2010 | Journalof Rare Earths2010，28，2： | 1 |
| 14 | Brominated flame retardants in house dust from e-waste recycling and urban areas in South China: implications on human exposure显示文摘 | WANG Jing MA Yunjuan CHEN Shejun | 2010 | Environment International2010，36，6： | 1 |
| 15 | Distribution ofpolybrominated diphenyl ethers in sediments of the Pearl RiverDelta and adjacent South China Sea显示文摘 | MAI Bixian CHEN Shejun LUO Xiaojun | 2005 | Environ Sci Technol2005，39，10： | 1 |
| 16 | Effect of Annealing Temperature on GMR of [NiFeCo(10 nm)/Ag(10 nm)]×20 Multilayer Film显示文摘The composition, phase structure, and microstructure of the discontinuous multilayer films [NiFeCo(10 nm)/Ag(10 nm)]×20 annealed at temperature 280,320,360 and 400℃, respectively were investigated. GMR (giant magnetoresistance) ratios of the multilayer films were measured at different temperatures. The results showed that FeNia precipitated at 360℃ and dissolved at 400℃. The films annealed at 360℃ for I h exhibited the highest GMR ratio 11% when saturation field was equal to 79.6 kA/m. | Yuding HE, Shejun HU, Jian LI and Guangrong XIECollege of Material and Energy, Guangdong University of Technology, Guangzhou 510643, China | 2004 | Journal of Materials Science & Technology2004，20，2： | 1 |
| 17 | Time trends of polybrominated diphenyl ethers in sediment cores from the Pearl River Estuary,South China显示文摘 | CHEN Shejun LUO Xiaojun LIN Zhen | 2007 | Environmental Science and Technology2007，41，16： | 1 |
| 18 | Concentrations, transport, fate, and releases of polybrominated diphenyl ethers in sewage treatment plants in the Pearl River Delta, South China显示文摘 | Xianzhi Peng Caiming Tang Yiyi Yu Jianhua Tan Qiuxin Huang Jiangping Wu Shejun Chen Bixian Mai | 2008 | Environment International2008，，2： | 1 |
| 19 | Facile spray-drying/pyrolysis synthesis of core–shell structure graphite/silicon-porous carbon composite as a superior anode for Li-ion batteries显示文摘 | Min Li Xianhua Hou Yujing Sha Jie Wang Shejun Hu Xiang Liu Zongping Shao | 2014 | Journal of Power Sources2014，，： | 1 |
| 20 | Polybrominated diphenyl ethers in surface sediments of the Yangtze River Delta: levels, distribution and potential hydrodynamic influence 显示文摘 | CHEN Shejun GAO Xiaojiang MAI Bixian | 2006 | Environ Pollut2006，144，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员