Materials Literature
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Microporous manganese formate shows temperature-triggered gate opening for nitrogen and argon adsorption, which is not due to a structural change of the framework but due to dynamic opening of the pore aperture and/or sufficient kinetic energy of the adsorbates to overcome a diffusion barrier above a critical temperat…
Molecular simulation is a very powerful toolbox in modern molecular modeling, and enables us to follow and understand structure and dynamics with extreme detail--literally on scales where motion of individual atoms can be tracked. This chapter focuses on the two most commonly used methods, namely, energy minimization…
根据2005-2006年太湖湖泊生态系统研究站的监测结果,结合历史监测记录,评价了近5年来太湖富营养化的趋势.结果显示,从2000年以来,太湖的富营养化状况有加重趋势.主要表现在:1)与历史监测资料对比,近5年来无论梅梁湾还是湖心区,夏季水体TN、TP含量均呈增高趋势,如1992-2001年,太湖湖心区夏季(6-8月份)水体TN的平均值为1.706 mg/L (范围1.238-2.266mg/L),而2002-2006这5年间该平均值为2.344mg/L(范围1.924-2.717mg/L),明显高于前10年(p=0.005),另外,同期湖心区夏季的水体透明度则明显下降(1992-2001年夏季平均值为0.63 m,而2002-2…
Radiotherapy-induced toxicity is a major dose-limiting factor in anti-cancer treatment. Ionizing radiation leads to the formation of reactive oxygen and nitrogen species (ROS/RNS) that are associated with radiation-induced cell death. Investigations of biological effects of fullerenol have provided evidence for its RO…
This paper describes an adaptive method for compensating the reactive power with an active power filter (APF), which is initially rated for mitigation of only the harmonic currents given by a nonlinear industrial load. It is proven that, if the harmonic currents do not load the APF at the rated power, the available po…
The micelle system formed by an amphiphilic triblock copolymer in water serves as a novel scaffold for fluorescence resonance energy transfer as well as light-induced reversible fluorescence modulation for a hydrophobic fluorescent dye.
Single-crystal to single-crystal transformation of a new lead(II) coordination polymer with ligands 8-hydroxyquinoline (8-Quin) and nitrate, [Pb2(8-Quin)2(NO3)2(MeOH)] () to [Pb(8-Quin)(NO3)] (1beta), is reported and the structures of and determined by X-ray crystallography.
The synthesis and structural, thermal, optical and theoretical characterization of new tris[1,2,4]triazolo[1,3,5]triazines were performed to support their application as liquid crystals and advanced materials.
The gas-liquid oxidation of cyclohexane is performed at high temperature (>200 degrees C) and pressure (up to 25 bar) using pure oxygen in a Pyrex capped silicon etched microreactor which allows convenient screen reaction conditions well above the flammability limit.
The resistive switching mechanisms of memory films are proposed to explain why resistive switching characteristics of device are more stable than those of and devices in this study. Different from the and the devices, the carrier conduction mechanisms in the device obey space charge limited current theory, which may b…
A novel 3-D (3,6)-connected topological architecture, obtained by reacting Cd(ClO4)2 x 6H2O with Htrtr (Htrtr = 3-(1,2,4-triazole-4-yl)-1H-1,2,4-triazole) under solvothermal conditions, presents a non-centrosymmetric polar packing arrangement, resulting in a strong second harmonic generation (SHG) response and ferroel…
Studies on nanoparticles have become the target of major interest in modern science. Fabrication and characterization of silver nanoparticles has attracted considerable attention as a result of their significant applications in nano-technology and nano-biotechnology. The unique physical, chemical and mechanical proper…
Cocrystallisation provides a means for dissimilar functional groups to become structurally equivalent, i.e. adopt similar structural roles in the solid. We describe a strategy to systematically construct sets of isostructural solids by using this cocrystallisation-induced structural equivalence. The strategy utilises…
Using first-principles calculations, we investigate the surface energies, equilibrium morphology, and surface redox potentials for in the olivine structure. Low-energy surfaces are found in the [100], [010], [011], [101], [201], and [301] directions of the orthorhombic structure. With the calculated surface energies,…
VOx-coated LiMn2O4 spinel nanorod clusters as a lithium battery cathode material are prepared by mixing OV(CH3H7)3 dissolved in ethanol and LiMn2O4 powder consisting of nanorod clusters and firing this mixture at 700 °C. In the coated spinel, the V atoms are distributed within ∼30 nm of the particle surface without sh…
What are the defining discoveries, moments of inspiration, or shifts in understanding that have shaped the dynamic field of materials science we know today? Here's what we think are the most significant.
We present seven new co-crystals based around 1,4-diiodotetrafluorobenzene that illustrate some of the progress that has been made, as well as some of the challenges that remain, in the assembly of specific solid-state architectures using non-covalent interactions and relatively simple molecular building blocks.
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High turnover enantioselective alkene cis-dihydroxylation is achieved with H(2)O(2) catalysed by manganese based complexes containing chiral carboxylato ligands.
Hydrogen Bubbles and the Growth Morphology of Ramified Zinc by Electrodeposition, Hsu, Pei-Cheng, Seol, Seung-Kwon, Lo, Tsung-Nan, Liu, Chi-Jen, Wang, Chang-Liang, Lin, Chao-Sung, Hwu, Y., Chen, C. H., Chang, Liu-Wen, Je, J. H., Margaritondo, G.