Materials Literature
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High Resolution Image Download MS PowerPoint Slide The methanol-to-olefins (MTO) reaction is an interesting and important reaction for both fundamental research and industrial application. The Dalian Institute of Chemical Physics (DICP) has developed a MTO technology that led to the successful construction and operati…
In this work we synthesized various types (α-, β-, γ-, and δ-) of MnO2 via redox method and investigated the effect of potassium ion content and synthesis temperature on the crystalloid structure formation. It was found that increasing the synthesis temperature and decreasing the potassium ion content leads to MnO2 wi…
In this work, palm fiber reinforced polylactic acid composites were fabricated by hot-compress. The palm fibers were treated by γ-aminopropyl trimethoxysilane (APS) and coated with polylactic acid (PLA) in varied percentage (5%, 10% and 15%). The treatment reaction was analyzed by FTIR and the effect of fiber treatmen…
Cellulose is one of the most abundant biomass material in nature extracted from natural fibers. Its hierarchical structure allows different kinds of microfibril cellulosic fillers to be obtained known as cellulose microfibril or microfibrillated cellulose (MFC). MFC is generally prepared by either acid hydrolysis, or…
We conducted reduction reactions of graphene oxide (GO) using three selected reductants. The conductivity and solubility of three kinds of the reduced graphene oxides (RGOs) were examined based on the degree of reduction. When the ethylene glycol (EG) was used as a reductant, the reduction reaction did not sufficientl…
A machine tool must be able to produce high-quality product. But a skilled operator also required. The process of workpiece production begins with planning a logical working steps, such as: specifying the type of machine tool’s process and selecting the materials to be used. The production process is not only related…
The technique of X-ray photoelectron spectroscopy has been used to investigate the chemical reactivity at the metal/ CuO interfaces. Thin films of the metallic overlayer (0.5 nm, 1.0 nm and 2.0 nm thickness) were deposited on copper oxide substrates at room temperature. In situ characterization of the interfaces has b…
A template free anodic electrodeposition process has been developed to deposit Mn oxide and Mn oxide/ PEDOT rods onto Ni foam substrates for use as a supercapacitor. The deposit morphology has been optimized by varying deposition conditions and by characterization using SEM imaging. TEM diffraction indicates that the…
The present work reviews current practices in quantitative XRD analysis of anhydrous and hydrated Portland cement. While Part 1 of this two-part work reviews the conventional internal standard method and the reference intensity ratio (RIR) method, Part 2 reviews the more commonly used computer-based methods, which inc…
Aerosols dispersed from the oxidation of various uranium alloys exposed to air and direct flame impingement from combustible substrates are characterized. An apparatus was designed to incorporate desired characteristics of previous experiments on uranium to sample aerosol on a kilogram scale in a laboratory environmen…
Cellulosic materials derived from pineapple leaves fibers (PALF) which are being wasted after fruit harvested. There are two methods to extract cellulose from PALF. First methods were using sodium hydroxide (NaOH) 2% for alkaline treatment and bleached by sodium hypochlorite (NaClO) and buffer. Second method, cellulos…
Methanofullerenes, such as [6,6]-phenyl-C 61 -butyric acid methyl ester {[6,6]PC 61 BM ( 1a )}, were synthesized in good yields from the corresponding tosylhydrazones in an aqueous two-phase ( o -dichlorobenzene–H 2 O) system under photoirradiation conditions. This simple and convenient procedure was adopted for the s…
Abstract Layered titanium disulfide is used as lithium-ion intercalating electrode material in batteries. The room-temperature stable trigonal 1T polymorphs of the intercalates Li x TiS2(x ≤ 1) are widely-investigated. However, the rombohedral 3R polymorphs, being stable at higher temperatures for large x, are less we…
Magnetron sputtering plasma for the deposition of copper oxide thin film has been investigated using optical emission spectroscopy and Langmuir probe. The intensity of the light emission from atoms and radicals in the plasma were measured using optical emission spectroscopy (OES). Then, Langmuir probe was employed to…
Exposure buildup factors(EBF) for some spin ice compounds such as Dysprosium Titanate (Dy2Ti2O7), Dysprosium Stannate (Dy2Sn2O7), holmium Titanate (Ho2Ti2O7) and holmium Stannate (Ho2Ti2O7) useful in nuclear engineering have been computed for photon energy range 0.015 to 15 MeV upto penetration depth of 40 mean free p…
In this work, a zinc nitride (ZnN) film was deposited at room temperature and subjected to pulse-mode rapid thermal oxidation. The physical and chemical structures of ZnN film were changed during the rapid thermal oxidation process. The presence of zinc-oxygen bonds in the oxidized ZnN film indicated that some nitroge…
Influence of separator material on the high and low frequency series resistance, characteristic time constant, energy and power densities of the supercapacitors (SCs), based on two identical ideally polarizable microporous titanium carbide-derived carbon electrodes in different electrolytes: 1M (C2H5)3CH3NBF4 in aceto…
Protein adsorption on inorganic surfaces involves a complex mechanism which could be controlled by surface functionalization methods. A dry surface functionalization method for powders could be beneficial as compared to wet‐chemical methods, since aspects like suspension preparation and subsequent drying can be avoide…
Crystallinity of oil palm fiber from empty fruit bunch (EFB) with and without tretaments was studied by analyzing the X-ray diffraction (XRD) pattern. In this paper, we focused on the effect of acid hydrolysis onto EFB on the crystallinity of the extracted cellulose. The reaction was carried out by soaking EFB in 1% (…
Composite nanostructures of NaYF4:Yb3+, Er3+@Au have been successfully prepared by attaching gold nanoparticles onto the surface of NaYF4: Yb3+, Er3+ upconversion nanoparticles (UCNPs). NaYF4 inert shell was used to adjust the separation distance between gold nanoparticles and UCNPs. Effects of the gold nanoparticles…