Materials Literature
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QDSSC 的 sc )被提高超过 10 ?从 7.788～8.574 的%?妈/厘米 2 由于到 photoanode 的从金 nanocrystals 的热电子的直接注射。以便证实如此的结论，合成 Au/TiO 2 nanostructure 也被制作。确实，热电子注射结果 ~ 的光电流密度 5 ? 妈 / 厘米 2 清楚地在可见轻照耀下面被观察。
一在里面增强的 situ 和前 situ 搽粉冶金学(下午) 钢被高精力的球 milling 并且与 NbC 粒子的增加的由质量的 Fe-10Cr-1Cu-1Ni-1Mo-2C 的元素的混合粉末的随后的热紧迫的联合准备。A 40-h milling 预告的处理将近使粉末成为粒子有 8 m 的一条平均直径的 equiaxed，和铁酸盐谷物尺寸被精制到 6 nm。当 sintering 在比 1000 大的温度被进行时， sintered 密度到达理论价值的 99.0%99.7%??? u
Amorphous indium- gallium- zinc oxide(a- IGZO) thin films were fabricated using mid- frequency AC magnetron sputtering deposition with variable oxygen flow rate and sputtering current. The influence of processing parameters on the electronic properties of the films was investigated by means of analyses of XRD and XRF,…
因为金 nanomaterials 的性质和功能高度依赖于他们的粒子尺寸，形状，和维数，金 nanocrystals 的控制合成是集中的研究的题目十年了。特别，各向异性的金 nanocrystals 例如 nanowires， nanobelts， nanoplates 和 nanosheets，在电子学由于他们的惹人注目的性质和有希望的应用吸引了许多注意，催化作用， photonics，察觉到并且 biomedicine。在这评论，我们将总结 onedimensional (1D ) 的最近的开发并且二维(2D ) 金 nanostructures。为这些 1D 和 2D 金牌 nanocrystals 的准备的合成方法的各种各…
2 硅底层在4.0lus-plus'的一个压力下面由常规真空蒸发从 c-Si 晶片切了> 0.05 O 有 1 m 的一条平均直径的 2 nanofibers 与 electrospinning 方法。退火的 nanofibers 热地在温度被对待 1 100
A series of CaFCl:Tb3+ and CaFCl:Tb3+,A+(A=Li, Na and K) nanophosphors were synthesized by the one-step sol-gel method, which were reported for the first time. The sample consisted of monodisperse particles, the average size of which was 37 nm. The emissions of Tb3+ ions and oxygen defects O F? were demonstrated in th…
退火的效果温度(与在 1 h 是不变的退火的时间)在微观结构上，订，剩余应力，机械性质，和有圆柱的谷物的 Fe-6.5wt%Si 电的钢的随后的冷滚动可使用性被调查，钢在哪儿是温暖的，在 500 正猠牵慦散?湡?牣捡?牧睯桴瀠瑡獨眠牥?湡污穹摥琠?汣牡晩?桴?滚动了??敭档湡獩獭鮐? 鮐 吗？？
乙烯乙二醇，甘油，山梨糖醇， formamide，和脲从玉米淀粉为热塑的淀粉 TPS 的准备被用作可塑剂。TPS 的性质被分析方法测试。结果证明 TPS 高度是更多有胺的 plasticized 比白酒。为可塑剂的一样的类型，当可塑剂的分子的重量增加了， plasticization 的度减少了。在 plasticization 度和 TPS 性质之间的关系被机械性质和水吸收描绘并且描述。试验性的结果证明当 plasticization 的度增加了时，张力的力量减少了，在破裂和水吸收的延伸增加了。
The photocatalytic degradation on the bismuth containing complex oxide is reviewed in detail including the synthesis and classification of photocatalys,and then the photocatalytic reactiong,scavenger,and the mechanism of reaction. In particular,the perspectives of photocatalytic degradation on the bismuth containing c…
Cu thin films were deposited by magnetron sputtering on Si O2 substrate pre-coated without and with a thin Ti seed layer. Then the surface morphology and micro-texture of the films were characterized by means of electron back-scattered diffraction(EBSD) and atomic force microscope(AFM). The results show that the Cu th…
Microstructure and tensile property of pure magnesium processed by cyclic extrusion-compression(CEC) at 350℃ for 2, 4 and 8 passes respectively, as well as for 2 passes at 250℃, 350℃ and450℃ respectively are investigated. Results showed that the microstructure of pure magnesium is significantly refined and recrystalli…
In this work, the influence of sub-zero Celsius treatment and tempering on the mechanical and thermal stability of retained austenite in bearing steel were assessed by tensile test and DSC. Compared with traditional quenched and tempered treatment, sub-zero Celsius treatment obviously decreases the volume fraction of…
有新微观结构的钢，有一致地分布式的 nanosized 渗碳体粒子的 bimodal submicrometer equiaxed 铁酸盐谷物，被利用的一条新途径生产简单冷滚动、随后一个双阶段退火铁酸盐马氏体开始结构。标本在以后的吝啬的铁酸盐谷物尺寸和碳化物尺寸范围 80% 冷滚动、随后在 600 点退火 ? n 体积和带子为 5 退火了 ? 在 800 和 900 点的 h ?? 牣獹慴汬瑩獥π
Formic acid(FA) is an important material in the chemical industry, and the preparation of FA from biomass could provide a sustainable strategy for the large-scale production of FA. Vanadium(V)-containing catalysts have recently been reported to catalyze the conversion of biomass to FA with a high level of selectivity…
癌症化疗被它的副作用和 multidrug 抵抗(MDR ) 限制了。因此，指向了能围绕 MDR 的药交货系统被需要。这里，我们向 chemosensitive 和在白血病和乳癌房间模型围绕了 MDR 的 MDR 癌症房间为指向的药交货汇报多功能的 DNA nanoflowers (NF ) 。NF 经由卷圆复制， NF 为特定的癌症房间识别，为 bioimaging 的 fluorophores，和 doxorubicin (纪录影片) 用 aptamers 在期间被合并产生的 DNA 和镁焦磷酸盐的潜在的一起沉淀是自我装配的为药交货的有约束力的 DNA。NF 尺寸是悦耳的(在直径击倒 nm 到 200 ) ，并且浓密地包装的药…
There has been much interest in nanostructured electrode materials for supercapacitor application due to their high energy density, excellent rate capability, and long cycle life. In this work, metal-decorated polypyrrole (PPy) nanocapsules were fabricated and integrated as electrode materials into supercapacitors. Th…
Partially hydrolyzed preformed particle gel( PPG) was widely used in petroleum industry for enhancing oil recovery. Its aggregation and swelling in solution can effectively block the high permeability areas. In this work,a series of molecular dynamics simulations was conducted to investigate the swelling and hydration…
在机械性质上调查聚乙烯乙二醇 cross-linking 的效果， 80 个猪的大动脉的阀门被收获， decellularized，并且与 sulfhydryl 介绍了。然后，阀门随机被分配进 5 个试验性的组和 1 个控制组(n=16 ) 。为在那些试验性的组的阀门，分叉 5 不同分子的重量的聚乙烯乙二醇 diacrylate (木钉)(3.4， 8， 12， 20， 40 kDa ) 被综合并且与他们一起的 cross-linked 分别地。cross-linking 的效率被测量剩余 thiol 组的数量决定， cross-linked 阀门传单的机械性质被估计由单轴平面张力的测试。PEG 20 kDa 组的效率是 70.7…
Water-based nanofluids were prepared with multi walled carbon nanotubes(MWCNTs) of different lengths in concentrations of 0.1,0.25 and 0.5 vol%.To improve their dispersibility,pristine MWCNTs were functionalized and cut into small lengths by reflux in an oxidizing mixture of 3:1 sulfuric and nitric acids.The initial l…
Roll flattening theory is an important part of plate shape control theories for 20-high mill. In order to improve the accuracy of roll flattening calculation for 20-high mill, a new and more accurate roll flattening model was proposed. In this model, the roll barrel was considered as a finite length semi-infinite body…