Materials Literature
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合成并通过单晶衍射表征了3个稀土配合物[La L2（NO3）3]·CH3CN（1）,[Ln（L）（NO3）3（H2O）]（Ln=Tb（2）,Dy（3）,L=N-苯基-2-（5-氯-8-喹啉氧基）乙酰胺）。在配合物1中,十二配位的La（Ⅲ）离子采取扭曲的二十面体配位构型,分别与来自2个酰胺配体L的4个氧原子和2个氮原子,及3个双齿配位硝酸根配位。配合物2和3的结构与拥有相同有机配体的Pr、Nd、Sm、Eu、Gd和Er配合物同构。在每个配合物中,十配位的稀土离子与来自1个配体L的2个氧原子和1个氮原子,3个双齿配位硝酸根和1个水分子配位,拥有扭曲的双帽四方反棱柱配位构型。固态配合物2和3在可见区发射强荧光。
Correction for 'Metal complexes as "protein surface mimetics"' by Sarah H. Hewitt and Andrew J. Wilson, Chem. Commun., 2016, 52, 9745-9756.
In this paper, we report recent progress in high-energy X-ray focusing by using Kirkpatrick-Baez (K–B) mirrors in combination with a sagittally bent Laue monochromator. This combination of optics provides a high flux X-ray beam, which can significantly reduce the data acquisition time for high-pressure pair distributi…
采用水热合成法制备出了具有p-n异质结结构的立方形氧化铟表面负载片状氧化镍复合光催化剂。SEM,XRD和UV-VIS,FT-IR等方法对催化剂的晶相组成、微观结构、化学键组成以及吸光性能等进行了表征。结果表明,NiO/In_2O_3复合光催化剂的形成符合牺牲模板机理。片状氧化镍的负载使复合光催化剂的吸收带边发生了明显的红移,并在可见光区产生响应。光催化降解盐酸强力霉素实验表明,与单一的In_2O_3相比,氧化镍颗粒的负载使二氧化铟的光催化效果在紫外-可见光区有了明显地提高,且在中性以及碱性条件下的光催化效果最佳,降解效率达到93%,其主要原因应归功于氧化镍晶粒与二氧化铟晶粒紧密接触形成p-n异...
In this article, a novel hemp stem powders (HSP) reinforced flexible polyurethane foam from polyols and diphenylmethane diisocyanate (MDI) has been prepared by self-rising method using water as blowing agent. The cell morphology of the HP reinforced foam was examined by scanning electron microscope (SEM). Besides, the…
目的研究熔渗温度和熔渗时间对复合材料密度和弯曲性能的影响。方法采用化学气相渗透法（CVI）和聚合物浸渍裂解法（PIP）制备熔渗用低密度C/C复合材料,以Si0.9-Zr0.1合金为熔渗金属,采用反应熔渗法（RMI）制备C/C-SiC-ZrC复合材料。测试C/C-SiC-ZrC复合材料的开孔率、密度、弯曲强度,分析试样的相组成。结果熔渗温度为1450℃时,复合材料的密度仅有1.97 g/cm3,弯曲强度仅为153 MPa;当熔渗温度升高到1550℃时,密度和弯曲强度分别升高到2.39 g/cm-3和260 MPa;而当熔渗温度升高到1650℃时,密度和弯曲强度又分别降为2.18 g/cm-3和208 MPa。1.5 h熔渗时复合材料…
利用真空快速磁感应加热炉制备Mg-Zn-Sn合金相变储能材料。采用X射线衍射分析（XRD）、扫描电子显微镜（SEM）、差式扫描热分析仪（DSC）等分析技术研究了4种不同配比Mg-Zn-Sn合金相变储能材料的微观结构和储热性能。结果表明：4种储热材料的相变温度在320～370？C之间,相变潜热随成分Zn和Sn的增加而增加,其中Mg-35Zn-35Sn（质量分数）合金相变潜热最高,为79.54 J/g。结合微观结构和相变潜热分析发现,在合金制备过程中,Mg和Zn形成金属化合物Mg2Sn,不利于合金材料的相变储能;合金材料在升温相变储能过程中,材料不会损耗。
The dynamic compressive experiments of 2D-C/SiC composites under low temperature were performed on the SHPB system. The low temperatures at 173K and 103K were obtained by controlling the ratio of the absolute alcohol to the liquid nitrogen. The wave shapers were designed to meet the requirements of stress uniformity a…
利用简化的速率方程研究不同激发波长条件下Er^3＋：PLZT陶瓷的1 550 nm荧光特性。分析荧光强度随激发光强度和Er^3＋掺杂浓度的变化情况以及ETU和ESA对1 550 nm荧光发射的影响。结果表明,掺Er^3＋浓度增加需伴随较大的激发光强度才能得到较强的荧光强度,且上转换对1 550 nm荧光有一定抑制作用。
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Composite (CrAl)N and (CrAlSiY)N hard coatings were deposited on 1Cr11Ni2W2MoV steel substrates by arc ion plating system under negative bias of 0 V, 100 V and 200V respectively. Pulsed bias gave rise to the deviation of elements, the decreased deposition rate, and the change of the preferred orientation, the crystall…
X-beam imaging of mice utilizing a colloid arrangement of Au nanoparticles that were covered with silica and hence surface-adjusted with carboxymethylcellulose (CMC) (Au/SiO2/CMC) was acted in this work. The silica-covering for Au nanoparticles and the amination for silica-covered particles were at the same time acted…
Metallic films with subwavelength apertures integrated into a semiconductor exhibit broadband enhancement of light coupling into the semiconductor (compared to an unstructured surface) while providing near uniform electrical contact for potential integration into optoelectronic devices.
The development of rapid, sensitive, and accurate mass spectrometric methods for measuring peptides, proteins, and even intact protein assemblies has made mass spectrometry (MS) an extraordinarily enabling tool for structural biology. Here, we provide a personal perspective of the increasingly useful role that mass sp…
Fluorescence photobleaching recovery was used to study directly and quantitatively the inhibition of the lateral mobility of surface immunoglobulins (slg) on mouse lymphocytes by localized binding of concanavalin A (Con A) coupled to platelets. Up to a threshold occupancy of about 10% of the upper cell surface by Con…
Additiv tillverkning är en modern metod för framtagning av komponenter med bland annat hög detaljrikedom. Konceptet av additiv tillverkning bygger på tillverkning där lagerytor av material placeras på lagerytor för att framställa en komponent. Tillverkningskonceptet tillåter hög designfrihet i jämförelse med tradition…
ABSTRAK Beberapa siri pengiraan ab-initio telah dijalankan bagi meneliti perubahan bentuk struktur dan ciri elektronik noktah kuantum silikon berdasarkan kesan pempasifan bahan bukan organik, hidroksil (OH) dan bahan organik, metil (CH 3 ). Hasil pengoptimuman geometri menunjukkan bahawa noktah kuantum yang dipasifkan…
To improve the anti-crack performance of Al-Cu alloys, the geometries, relative stability as well as growth strategies of Al n Cu (n=1-9) clusters were investigated with spin polarized density functional theory: BLYP. The results reveal that the Cu atom tends to convergence aluminum clusters to close-packed structures…
Magnetic hyperthermia is a non-invasive cancer treatment used synergistically with the existing cancer treatments. The challenges of an efficient magnetic hyperthermia are improved biocompatibility and enhanced heating characteristics. We have addressed both the challenges by fabricating globulin conjugated iron oxide…
Microbial induced corrosion (MIC) is a crucial problem in many technical plants as well as fuel tanks, leading to considerable damage and huge financial losses. Successful prevention of MIC requires the localization of first signs of corrosion as well as the identification of factors influencing the corrosion process.…