Materials Literature
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The performance of a process called sulfite pretreatment to overcome recalcitrance of lignocelluloses (SPORL), which was carried out at high pH, was preliminarily investigated as a means of improving bagasse substrate enzymatic digestibility (SED). The lignin removal significantly affected the SED resulting from the S…
Composite zeolite was used as support in NOx elimination. The catalytic performances of Pt/ZSM-35/ MCM-49, Pt/ZSM-35 and Pt/MCM-49 were studied on the condition of 0.1% NO, 0.5% H_2, 6.7% O_2, He as balance gas and GHSV = 8 × 10^4 h^(-1). The results show that the activity of Pt/ZSM-35/MCM-49 is higher than the other…
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Исследованы фазовые превращения при обжиге каолинов Мурзинского карьера в температурном интервале 600 – 900 °С. Установлено, что степень активности полученного метакаолина связана со степенью структурного совершенства исходного каолинита. Показано, что для получения высокоактивного метакаолина по отношению к строитель…
本研究主要在探討奈米氧化鋯與環氧樹脂及矽膠組成之奈米複合材料之合成方式，以及其於LED封裝材料上之應用。使用之樹脂主體材料主要分兩大部分，首先為選用商用環氧樹脂中黏度較低的脂環族環氧樹脂ERL-4221與表面改質過後之氧化鋯奈米粒子於乙酸乙酯溶劑中進行混合，將溶劑去除後得到氧化鋯/環氧樹脂複合封裝膠材。其次為參考文獻作法，自行合成具有低黏度，高折射率之矽膠原料後，重複第一部分複合材料做法，即可得到氧化鋯/環氧樹脂複合封裝膠材。 經由X光繞射儀(XRD)、粒徑分析儀(DLS)、小角度散射(SAXS)、熱重分析(TGA)、紫外光可見光光譜儀 (UV/Vis Spectrometer)、穿透式電子顯微鏡(TEM)、矽-29液態核磁共振光…
[ANGLES] An experimental set-up to measure plasmon-enhanced Circular Dichroism (CD) on Planar Chiral Metamaterials (PCM) has been designed, built and tested. PCMs, made of two-dimensional arrays of metallic nano-particles, have been fabricated and their geometry optimized to maximise their CD response. We carried out…
It is shown how the combination of atomic deposition and nonlinear diffusion may lead, below a critical temperature, to the growth of nonuniform layers on a substrate. The dynamics of such a system is of the Cahn-Hilliard type, supplemented by reaction terms representing adsorption-desorption processes. The instabilit…
The geometry, electronic structure, dehydrogenation energy and hydrogen atom migration on the clean and Mg doped LiBH_4 (010) surfaces were studied with first-principles calculations based on density functional theory (DFT). The lengths of B-H bond increase, and H atoms are easy to dissociate. Based on the H vacancy,…
Abstract Elastomeric seals are a frequently favoured method of sealing radioactive material transport (RMT) packages. The sealing technology has been proven for many years in a wide range of industrial applications. The requirements of the RMT package applications, however, are significantly different from those commo…
A conjugated dendrimer based triphenylamine, 1,2,4,5-tetra{4-[N,N-di(4-iodophenyl)amino] styryl}benzene(TPAB-I), was synthesized through Wittig-Horner reaction. The maximum emission wavelengths of TPAB-I were 451, 464, 478, 481 and 511 nm in toluene, THF, ethyl acetate, CH2Cl2 and DMF, respectively. The maximum emissi…
We propose a strategy to enhance the photocurable properties of the multi walled carbon nanotube (Mwcnt) / binder films through control of the intermolecular interaction between the nanotube and the binder material. For this aim, photosensitive functionalized carbon nanotube was synthesized and by mixing binder, it wa…
Al-LiBH4 composite materials were prepared by the mechanical ball milling. The results of the hydrogen-production curves and X-ray diffraction patterns show that when the reaction temperature is higher, the mutual promotion effect between aluminum and LiBH4 will be more intensed, and the generation of hydrogen will be…
In this work, two perovskite‐type compounds, K0.5Bi0.5TiO3 and LaAlO3, have been selected as host material to incorporate with BiAlO3 using a solid‐state reaction route. The phase evolution and dielectric properties for both systems have been investigated in detail. For the K0.5Bi0.5TiO3BiAlO3 system, it is interesti…
This chapter contains sections titled: Towards a First DQMC Program Conclusion
Two Cd(II) coordination polymers [Cd_3Na_2(btec)_2 (H_2O)_2 ]_n (1) and {[Cd_3Na_2 (btec)_2∙(H_2O)_2]∙4H_2O}_n(2)(H_4btec = 1,2,4,5-benzenetetracarboxylic acid) were synthesized by hydrothermal method. The structures were determined by single crystal X-ray diffraction. Structural analyses show that the asymmetric unit…
采用一种新的相转移法制备了双层包裹的Fe 3 O 4 正己烷磁流体. 首先, 以油酸钠作为表面改性剂, 对化学共沉淀制备的Fe 3 O 4 纳米颗粒进行双层包裹, 制备了稳定的水基磁流体, 在此基础上, 通过加入乙酸(CH 3 COOH)将亲水颗粒转变为亲油颗粒, 并用萃取的方法将亲油颗粒成功转移到正己烷相. 傅里叶变换红外光谱(FTIR)表明, 通过调整pH值可以将双层包裹的磁性颗粒外层带有的亲水基团油酸根R-COO － 转变为亲油的R-COOH, 从而使得包裹的颗粒既可溶于极性载液也可溶于非极性载液. 利用X射线衍射仪(XRD)、 振动样品强磁计(VSM)和透射电子显微镜(TEM)对Fe 3 O 4 颗粒的形貌、 组成及磁流体…
Kerosene is a common fuel for domestic heating systems. Dating petroleum spill contamination is of considerable International Interest. An accurate determination of the age of spills is needed to inform the process of assigning legal and financial responsibility. The pollution of sons and groundwater by kerosene spill…
Wettability is a defining property of surfaces that depends on both the geometry and chemical composition of the surface. Surfaces with controlled wetting properties present great advantages in various applications, from daily life to agriculture and medical science. The growth of such functional surfaces has, thus, g…
This chapter focuses on the production, characterization, and applications of protein nanofiber structures formed from a variety of peptides and proteins. Protein nanofibers, because of their almost unequalled aspect ratio (i.e., their ratio of diameter to length), have great potential in the field of templated one‐di…
This chapter contains sections titled: Clusters and Nanophysics Cubic BCC Arrangement of Lithium Atoms The Cluster: Intermediate between Atom and Solid