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chinese Journal of Structural chemistry 2005年第6期24卷 629-632页

作者： GAOShan HUOli-Hua cHENGXiao-li liUJi-Wei LabortatoryofFunctionalMaterials SchoolofChemistryandMaterialsScienceHeilongjiangUniversityHarbin150080China

A novel coordination polymer of [Mg(1,4-BDOA)(cH3OH)2]n (1,4-BDOA2– = benzene-1,4-dioxyacetate dianion) has been synthesized and characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal crystallizes in monoclinic system, space group P21/c, with a = 12.070(2), b = 7.7088(15), c = 7.3332(15) ?, β = 91.42(3)o, V = 682.1(2) ?3, Z = 2, Mr = 312.56, Dc = 1.522 g/cm3, μ = 0.168 mm–1, F(000) = 328, the final R = 0.0628 and wR = 0.1591 for 1082 observed reflections with I > 2σ(I). The Mg(II) atom and 1,4-BDOA2– ligand lie in different inversion centers. The Mg(II) atom shows an octahedral geometry defined by four carboxyl O atoms from four different 1,4-BDOA2– ligands and two hydroxyl O atoms from two methanol molecules. The Mg(II) atoms are bridged by 1,4-BDOA2– ligands, leading to a 3D infinite network structure.

关键词： magnesium(II) complex benzene-1,4-dioxyacetic acid synthesis crystal structure

Increasing open circuit voltage by adjusting work function of hole-transporting materials in perovskite solar cells

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Nano Research 2016年第6期9卷 1600-1608页

作者： Weibo Yan Yu li Senyun Ye Yunlong li Haixia Rao Zhiwei liu Shufeng Wang Zuqiang Bian chunhui Huang State Key Laboratory of Rare Earth Materials chemistry and Applications College of Chemistry and Molecular Engineering Peking University Beijing 100871 China ing 100871 China

A series of conductive polymers, i.e., poly（3-methylthiophene）（PMT）, poly（thiophene）（PT）, poly（3-bromothiophene）（PBT） and poly（3-chlorothiophene）（PcT）, were prepared via the electrochemical polymerization process. Subse- quently, their application as hole-transporting materials （HTMs） in cHBNI-I3Pb｜3 perovskite solar cells was explored. It was found that rationally increasing the work function of HTMs proves beneficial in improving the open circuit voltage （Voc） of the devices with an ITO/conductive-polymer/cHBNHBPbIg/c60/BcP/Ag structure. In addition, the higher-Voc devices with a higher-work-function HTM exhibited higher recombination resistances. The highest open circuit voltage of 1.04 V was obtained from devices with PcT, with a work function of -5.4 eV, as the hole-transporting layer. Its power conversion efficiency attained a value of approximately 16.5%, with a high fill factor of 0.764, an appreciable open voltage of 1.01 V and a short circuit current density of 21.4 ***-2. This simple, controllable and low-cost manner of preparing HTMs will be beneficial to the production of large-area perovskite solar cells with a hole-transportin~ laver.

关键词： perovskite solar cells electrochemical polymerization hole-transporting materials work function recombination resistance

Synthesis,characterization and Magnetic Properties of a New Manganese(Ⅱ) Phosphite

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chemical Research in chinese Universities 2012年第4期28卷 563-566页

作者： ZHANG Hua WANG li-ping SHI Su-hua HUANG liang-liang WANG li college of chemistry Jilin UniversityChangchun 130012P.R.China Nanjing center China Geological SurveyNanjing 210016P.R.China

A new manganese（Ⅱ） phosphite,Mn 2 F2（HPO3）（1）,was synthesized with tetraethylene pentamine as structure directing agent under hydrothermal *** as-synthesized product was characterized by single crystal X-ray diffraction,powder X-ray diffraction,infrared（IR）,UV-Vis spectrum,thermogravimetric analysis（TGA）,inductive coupled plasma-atomic emission spectroscopy（IcP-AES）,elemental analyses and magnetic susceptibility *** crystal X-ray diffraction analysis reveals that compound 1 crystallized in the orthorhombic space group Pnma,with a=0.75667（15） nm,b=1.0247（2） nm,c=0.55432（11） nm,V=0.42980（15） nm ^3,Z=*** 3D compact framework of compound 1 was built up by the Mn2O6F4 dimers and HPO3 *** 1,a new metal-rich manganese phosphite,shows a high thermal stability limit of 550 ℃.Magnetic measurement indicates that compound 1 exhibits the global antiferromagnetic interactions with a ferromagnetic transition at 28 K.

关键词： Manganese phosphite 3D Framework Magnetic property

EFFEcT OF MELT OVER-HEATING AND ZIRcONIUM ALLOYING ON THE MORPHOLOGY OF Al_9FeNi PHASE AND MEcHANIcAL PROPERTIES OF 2618 ALLOY

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Acta Metallurgica Sinica(English Letters) 2002年第6期15卷 525-530页

作者： J.H. WangMechanical Engineering Institute of Xiangtan University, Xiangtan 411105, chinaD.q. YiDepartment of Materials Science and Technology of central South University, changsha 410083, china Mech. Eng. Inst. Xiangtan Univ. Xiangtan 411105 China Dept. of Mat. Sci. and Technol. Central South Univ. Changsha 410083 China

The effect of melt over-heating on the morphology of Al_9FeNi phase in 2618aluminum alloy with high contents of Fe and Ni and 0.22 wt. percent zirconium has been investigatedby optical microscopy. SEM and TEM. The mechanical properties of 2618 aluminum alloy after hotextrusion and quenching/aging have been tested. The results show: melt over-heating treatment of2618 alloy with high contents of Fe and Ni at 960 deg c led to finer and better-distributedneedle-like Al_9FeNi phase in cast microstructure and fine Al_9FeNi particles after hot extrusion;the grain size of the alloy after hot extrusion could also be refined evidently by alloying ofzirconium; the ambient and high temperature tensile strength and elongation of 2618 alloy have beenapparently enhanced due to fine Al_9FeNi particles and dispersed Al_3Zr as well as fine grain size.

关键词： melt over-heating 2618 alloy zirconium alloying morphology of Al_9FeNiphase mechanical property

Orientation control of REBa2cu3Oz (RE=rare earth) Superconductor thick film grown by liquid phase epitaxy

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Orientation control of REBa2Cu3Oz (RE=rare earth) Supercondu...

Polymorphisms of some cytokines and chronic hepatitis B and c virus infection

第15届全国晶体生长与材料学术会议

作者： X. Yao, Y.q. cai, c. Y. Tang, Y. Y. chen, W. li Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, china

Single crystalline thick films of REBcO were grown by liquid-phase epitaxy (LPE). The growth conditions were changed by employing different oxygen partial pressures, liquid compositions and growth temperatures. It was found that oxygen partial pressure plays a predominant role in controlling out-of-plane and in-plane alignments. Under pure oxygen atmosphere, the growth window of a-axis YBcO films on NGO was obviously enlarged. On the other hand, growing in oxygen atmosphere, we firstly reported to gain an YBcO c-oriented film with a pure 45° in-plane alignment on MgO substrates. The systematic work includes studies on the relation of the formation of oriented film and the thermodynamic parameter, growth modes and properties of different oriented films.

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World Journal of Gastroenterology 2009年第44期15卷 5610-5619页

作者： qiu-Ju Gao Dian-Wu liu Shi-Yong Zhang Min Jia li-Min Wang li-Hong Wu Shu-Yun Wang li-Xin Tong Department of Epidemiology Public Health College Hebei Medical University Shijiazhuang 050017 Hebei Province China Department of Preventive Medicine Bethune Military Medical College of PLA Shijiazhuang 050081 Hebei Province China Institution of Epidemiology Center for Disease Prevention and Control of Shijiazhuang Shijiazhuang 050011 Hebei Province China Department of Biochemistry Detection the People's Hospital of Hebei Province Shijiazhuang 050071 Hebei Province China center of liver Diseases the First Affiliated Hospital of Hebei Medical University. Shijiazhuang 050031 Hebei Province China

AIM： To study the relationship between the polymorphisms in some cytokines and the outcome of hepatitis B virus （HBV） and hepatitis c virus （HcV） infection. METHODS： Samples were obtained from 203 patients infected with HBV and/or HcV while donating plasma in 1987, and 74 controls were obtained from a rural area of North china. Antibodies to HBV or HcV antigens were detected by enzyme-linked imrnunoassay. The presence of viral particles in the serum was determined by nested reverse-transcriptase polymerase chain reaction （PcR）. Hepatocellular injury, as revealed by alanine aminotransferase （ALT） and aspartate aminotransferase level, was detected by a Beckman LX-20 analyzer. DNA was extracted from blood cells. Then, the single nucleotide polymorphisms of IL-2-330, IFN-γ＋874, IL-10-1082/-592 and IL-4-589 were investigated by restriction fragment length polymorphism-PcR or sequence specific primer-PcR.RESULTS： Persistent infection with HBV, HcV, and HBV/HcV coinfection was associated with IL-2-330 TT genotype and T allele, IFN-γ＋874 AA genotype, and IL-10-1082 AA genotype. The clinical outcome of HBV and/or HcV infection was associated with IL-2-330 TT genotype and T allele, IFN-γ＋874 AA genotype, and IL-10-1082 AA genotype. IL-2-330 GG genotype frequency showed a negative correlation with clinical progression, IL-10-1082 AA genotype frequency showed a positive correlation and IL-10-1082 AG genotype frequency showed a negative correlation with clinical progression. HcV RNA positive expression was associated with IL-10-1082 AA genotype and the A allele frequency. Abnormal serum ALT level was associated with IL-10-592 Ac genotype frequency and IL-4-589 cc genotype, cT genotype, and the c allele. cONcLUSION： These results suggest that polymorphisms in some cytokine genes influence persistent HBV and HcV infection, clinical outcome, HcV replication, and liver damage.

关键词： Hepatitis B Hepatitis c Single nucleotide polymorphism Disease susceptibility Outcome studies cytokines

MJO Simulations by GAMIL1.0 and GAMIL2.0

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Atmospheric and Oceanic Science Letters 2012年第1期5卷 49-54页

作者： XIE Xin WANG Bin li li-Juan DONG li State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric Physics(lAP)Chinese Academy of SciencesBeijing 100029China

GAMIL2.0 is the newly released version of the Grid-point Atmospheric Model of IAP LASG(GAMIL),in which the major modifications from GAMIL1.0 include an updated deep convection scheme and the incorporation of a two-moment bulk stratiform cloud microphysics *** study evaluates the performances of both versions on Madden Julian Oscillation(MJO) *** results show that GAMIL2.0 obtains an enhanced MJO eastward and northward propagation,which is weak in GAMIL1.0,and it reproduces a more reasonable MJO major structure coupling upper level wind,lower level wind,and outgoing long wave *** contributions of each scheme and factor to the improvement of GAMIL2.0 simulations need further study.

关键词： MJO GAMIL evaluation

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采用微机械加工技术的微光学加速度计

仪器仪表学报 2001年第2期22卷 162-164页

作者：郑露滴 A.Asundi N.c.Tien Z.chen A.q.liu 朗讯贝尔实验室基础科学研究院北京100080 Nanyang Technological University cornell University Institute of Materials Research and Engineering

表面微机械加工技术是实现单片集成微光学系统的一种新方法。本文介绍一种新型的采用微机械加工技术的微型光学加速度计 ,包括设计、关键器件的加工和测试 ,它是基于光线和光闸相互作用引起通光量变化的工作原理。这一微光学加速度计包... 详细信息

表面微机械加工技术是实现单片集成微光学系统的一种新方法。本文介绍一种新型的采用微机械加工技术的微型光学加速度计 ,包括设计、关键器件的加工和测试 ,它是基于光线和光闸相互作用引起通光量变化的工作原理。这一微光学加速度计包含一个 2 μm厚的多晶硅光闸 ,光闸采用微弹簧支撑在基片上 ,微弹簧是长度为 2 0 0 μm的多晶硅褶曲梁 ,硅基片和微结构之间所夹的牺牲层采用氢氟酸湿法刻蚀去除。光闸设计为一个质量弹簧系统 ,对加速度力产生响应。

关键词：微光学加速度计微机械加工微机电系统单片集成微光学系统

carbon deposition in porous nickel/yttria-stabilized zirconia anode under methane atmosphere

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International Journal of Minerals,Metallurgy and Materials 2019年第3期26卷 350-359页

作者： Zhi-yuan chen li-jun Wang Xiao-jia Du Zai-hong Sun Fu-shen li Kuo-chih chou State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Department of Materials Science and Engineering Delft University of Technology collaborative Innovation center of Steel Technology University of Science and Technology Beijing Suzhou Huatsing Jingkun New Energy Technology co. Ltd. School of Materials Science and Engineering University of Science and Technology Beijing

A commercial solid oxide fuel cell with a Ni/YSZ anode was characterized under a pure methane atmosphere. The amount of deposited carbon increased with an increase in temperature but decreased when the temperature exceeded 700°c. The reactivity of carbon decreased with increasing deposition temperature. Filamentous carbon was deposited from 400 to 600°c, whereas flake carbon was deposited at 700 and 800°c. With increasing temperature, the intensity ratio of the D band over the sum of the G and D bands was constant at the beginning and then decreased with the transformation of the carbon morphology. The crystallite size increased from 2.9 to 13 nm with increasing temperature. The results also indicated that the structure of the deposited carbon was better ordered with increasing deposition temperature. In comparison with pure Ni powders, the interaction between the YSZ substrate and Ni particles could not only modify the carbon deposition kinetics but also reduce the temperature effect on the structure and reactivity variation of carbon.

关键词： solid oxide fuel cell coking Raman spectrum hydrocarbon fuel anode

Microstructures and properties of cuZrAl and cuZrAlTi medium entropy alloys prepared by mechanical alloying and spark plasma sintering

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Journal of Iron and Steel Research International 2017年第4期24卷 448-454页

作者： Wen-juan Ge Xu-ting li Peng li Peng-chao qiao Jian-wei Du Shuai Xu Yan Wang School of Materials Science and Engineering University of JinanJinan 250022ShandongChina

Equiatomic cuZrAl and cuZrAlTi medium entropy alloys were designed and synthesized by mechanical alloying and spark plasma sintering *** alloying behavior,phase evolutions,microstructures and properties of samples were investigated by X-ray diffraction,differential scanning calorimetry,field emission scanning electron microscopy,microscopy/Vickers hardness testing and electrochemical polarization *** results indicate that the final products of as-milled alloys consist of amorphous *** addition improves the glass forming ability of as-milled *** as-sintered cuZrAl alloy contains face-centered cubic（fcc）solid solution,Al_（1.05）cu_（0.95） Zr and AlZr_2 phases at different sintering *** Ti addition,the as-sintered sample is only composed of intermetallics at 690°c,while fcc1,fcc2 and cuTi3phases are formed at 1100°***-1100°c alloy exhibits the highest hardness value of 1173HV0.2owing to the high sintering density,solid solution strengthening and homogeneous precipitation of nano-size crystalline ***-690°c alloy presents a similar corrosion resistance with304 Lstainless steel in seawater solution and further possesses the lower corrosion rate.

关键词： Medium entropy alloys Mechanical alloying Spark plasma sintering Microstructure corrosion resistance