Materials Literature
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Mo-MoSi2gradient coating on Mo substrate was prepared by siliconizing process,using the polysilicon as silicon atoms.The gradient layer was analyzed by the experimental results,theoretical analysis,and thermodynamic calculation.The silicon,molybdenum content of gradient coating shows a gradual change regulation.The re…
Response theory was used to investigate one-photon absorption(OPA) and emission,and twophoton absorption(TPA) of two novel truncated two-photon fluorescent probes AcHS-1,2 in the presence and absence of H_2S using density functional theory in combination with the polarizable continuum model.Changes in the optical prop…
A new 3D complex,[Co(L)(bpe)0.5(H2O)2]n(1,H2 L = 5-iodo-benzene-1,3-dioxyacetic acid,bpe = 1,2-bis(4-pyridyl)ethylene),has been hydrothermally synthesized and structurally characterized by elemental analysis,IR and X-ray diffraction.It is formulated as C16H16 Co INO8,crystallizes in monoclinic,space group P21/c,with a…
As one of the most promising energy-storage devices, supercapacitors have drawn great research inter- ests because of their outstanding electrochemical behavior. Carbon paper holds great prospect as an electrode material for supercapacitors since it is inexpensive and highly conductive. In this paper, the modified Hum…
A cystine-modified TiO2 visible-light photocatalyst was prepared by the sol-gel method and characterized by X-ray diffraction (XRD), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), and X-ray photoelectron spec- troscopy (XPS). The XRD results showed the cystine-modified TiO2 was in the anatase phase…
在团结的秒阶段微滴的变粗的过程 Al-20 ?wt% 双性人不能混合的合金在 situ 正在使用同步加速器放射成像技术学习。导致碰撞的变粗和 Ostwald 变粗现象直接被观察并且分析。通过观察，导致碰撞的变粗现象在半径与小差别发生在微滴之间，这被发现，当 Ostwald 变粗现象在半径与许多差别发生在微滴之中时。而且， Ostwald 变粗的变粗的率比导致碰撞的变粗的高得多。
In this study,graphene-carbon nanotube（CNT） hybrid films were directly synthesized on polycrystalline copper（Cu） substrates by thermal chemical vapor deposition（CVD） method.Graphene films were synthesized on Cu substrate at 1000 ℃ in mixture of gases:argon（Ar）,hydrogen（H2）,and methane（CH4）.Then,carbon nanotubes（CNTs）…
This work is devoted to the experimental determination of the electrostatic properties of the molecular 4-methyl-7-(salicylidene amino) coumarin(C17H13NC3) using high resolution x-ray diffraction data. The experimental results are compared with those obtained theoretically from calculation type ab initio. The experime…
以便减少收缩并且改进牙齿的合成树脂的机械性质，我们设计了包含新奇矩阵树脂的混合树脂明确的表达， BisS-GMA [bisphenol-Sbis (3-methacrylato-2-hydroxypropyl ) 醚] ，并且膨胀的 spiro-orthocarbonate (SOC ) 修改的环氧基树脂单体。然后，我们测试了 iodonium 盐的效果， diphenyliodonium hexafluorphosphate (DPIHFP ) ，在有七不同集中的混合树脂的性质上。混合树脂是由一个第三的相片开始者系统的 polymerized。容量的收缩(对) ，变换(DC ) 的度和压缩力量(CS ) 分别地用 AcuVol，…
为改善OLED器件的载子注入平衡，本文在其结构ITO/MoO3/NPB/Alq3/Cs2CO3/Al中，分别引入高电子迁移率材料Bphen及Bphen∶Cs2CO3作为电子传输层。通过改变Bphen的厚度以及Bphen中Cs2CO3的体积掺杂浓度，研究其对器件发光亮度、电流密度和效率等性能的影响。实验结果表明，采用Bphen或者Bphen∶Cs2CO3作为电子传输层，均能提高器件的电子注入能力，改善器件的性能。相比于未引入Bphen的器件，采用25 nm的Bphen作为电子传输层，改善了器件的电子注入，使器件的最大电流效率提高112%；采用体积掺杂浓度为15%，厚度为5 nm的Bphen∶Cs2CO3作为电子传输层，减小了电子注入…
At three critical temperatures which were obtained by thermo-gravimetry-differential thermal analysis–differential scanning calorimetry（TG/DTG/DSC）curves of lanthanum nitrate crystal, the air thermal decomposition experiments and solid–liquid spray doping simulation procedures of lanthanum nitrate crystal were carried…
摘要： 利用电化学测量技术，研究不同温度敏化后的430铁素体钢在模拟汽车冷凝液环境中的电化学行为及汽车冷凝液成分变化对430铁素体不锈钢电化学行为的影响。结果表明，850～1 150 ℃的敏化温度范围内，430铁素体不锈钢随着敏化温度的升高，晶粒度逐渐增大，在模拟汽车冷凝液环境中，零电流电位和电荷转移电阻逐渐降低，耐蚀性下降；430铁素体不锈钢在Cl–分别与SO42–或SO32–共存的条件下，比在Cl–与CO32–共存环境中更容易发生腐蚀，腐蚀速度更高；Cl–存在的溶液中，SO32–具有较大的加速腐蚀作用，且随着SO32–浓度的增加，维钝电流升高，腐蚀过程有逐渐加剧的趋势；Cl–和SO32–共存溶液中，CO32–在一定程度上抑制了…
Ho3+/Yb3+ 共同做 -NaYF4 单身者水晶被 KF 在被用作帮助流动和一个大温度坡度的一个修改布里奇曼方法第一次成功地种(7090 湩瑥捩戠污湡散 ? 桷捩 ? 潣汵? 楧敶甠? 潳敭椠獮楰慲楴湯愠潢瑵栠睯琠? 档湡敧琠敨瀠潲畤瑣 ? 敳敬瑣癩瑩吗？
Rectangular section control technology(RSCT)was introduced to achieve high-precision profile control during silicon steel rolling.The RSCT principle and method were designed,and the whole RSCT control strategy was developed.Specifically,RSCT included roll contour design,rolling technology optimization,and control stra…
有优秀的率能力和骑车的稳定性的 V2O3-C 双层的涂的 LiFePO4 阴极材料被 V2O5 的 carbothermic 减小准备。X 光检查粉末衍射，元素的分析器，高分辨率传播电子显微镜学和拉曼系列表明 V2O3 阶段在 LiFePO4 粒子和没有 graphitization 度在 V2O5 的 carbothermic 减小以后变化，减少的碳内容的涂层层与碳共存了。电气化学的测量结果显示 V2O3 的小数量在 LiFePO4/C 阴极材料的提高的温度改进了率能力和骑车的稳定性。与 1wt% 钒氧化物合成的 V2O3-C 双层的涂的 LiFePO4 在 5 C 以及优秀骑车稳定性在 0.2 C 和 129 mAh/g 交付…
The mechanical strength of solid catalysts is considered an important factor in terms of ensuring the reliable performance of industrial reactors.In this work,a pelletizing method was used to form gamma alumina support for catalysts.Response surface methodology(RSM) was employed to analyze and model the effects of var…
According to the well-known models for rubberlike elasticity with strainstiffening effects, the unbounded strain energy is generated with the unlimitedly growing stress when the stretch approaches certain limits. Toward a solution to this issue, an explicit approach is proposed to derive the multi-axial elastic potent…
A new method of hydrogen generation from Al−Li−Sn alloy was studied in the present article. The hydrogen generation performance of the alloy could be regulated via composition design. The optimized Al−10 wt% Li−5 wt% Sn alloy yielded 1,329 ml g−1 hydrogen with 100% efficiency and controllable hydrogen genera…
Transition metal (Co, Cu, Fe)-doped CeO2 catalysts with three-dimensional mesoporous channels had been synthesized through a nanocasting route using three- dimensional mesoporous silica KIT-6 as the template. All four catalysts exhibited high surface area ((120 m 2 g -1 ) and ordered mesopore. The research results sho…
Twenty tests were conducted to investigate the efficiency of the intumescent coating designed to protect steel plate at the elevated temperature, by means of electrical furnace. And the factors of the initial thickness of coating and temperature of electrical furnace were considered. The high temperature response beha…