Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The nature of γ-alumina (γ-Al 2 O 3 ) surface sites leaves many open questions today, and solid-state NMR spectroscopy has been proposed and used as a tool for assessing their structure. Here, we calculated 27 Al NMR parameters from first principles in periodic boundary conditions for a large number of Al sites with d…
ABSTRACT Zeolitic imidazolate framework (ZIF)‐11 crystals were prepared by the toluene‐assisted method, and they were incorporated into polysulfone, polyethersulfone, and polybenzimidazole (PBI) matrix to investigate the compatibility. ZIF‐11 had a good connection with PBI matrix as they had the same benzimidazole gro…
Direct synthesis of 5-hydroxymethylfurfural (5-HMF), a useful renewable biofuel and biochemical, was systematically studied by hydrolysis of microcrystalline cellulose over Bimodal-HZ-5 zeolite. Bimodal-HZ-5 zeolite obtained by post-synthesis modification of H-ZSM-5 with desilication was found to be a potential hetero…
The method of preparation of highly stable reproducible C60 fullerene aqueous colloid solution is described. The structural organization of C60 fullerenes in aqueous solution was studied and analyzed in detail using various techniques such as chemical analysis, UV/VIS spectroscopy, atomic force and scanning tunneling…
One-pot production of furfuryl alcohol via xylose dehydration followed by furfural hydrogenation was investigated over a dual catalyst system composed of Pt/SiO2 and sulfated ZrO2 as metal and acid catalysts, respectively. All samples were characterized by XRD, XRF, N2 physisorption, TG-MS and FTIR regarding their mos…
Bulk metallic glasses exhibit high strength and large elastic strain limit but have no tensile ductility. However, bulk metallic glass composites reinforced by in-situ dendrites possess significantly improved toughness but at the expense of high strength and large elastic strain limit. Here, we report a bulk metallic…
An amine-embedded flexible alkyl strap has been incorporated into an emissive boryl-substituted dithienylpyrrole skeleton as a new entity of excited-state intramolecular proton transfer (ESIPT) chromophores. The π-electron system shows a dual emission, which covers a wide range of the visible region depending on the s…
Electromechanical coupling is ubiquitous in nature and underpins the functionality of materials and systems as diverse as ferroelectric and multiferroic materials, electrochemical devices, and biological systems, and strain-based scanning probe microscopy (s-SPM) techniques have emerged as a powerful tool in character…
Significance: Laminins are complex extracellular macromolecules that are major players in the control of a variety of core cell processes, including regulating rates of cell proliferation, differentiation, adhesion, and migration. Laminins, and related extracellular matrix components, have essential roles in tissue ho…
The performance of organic photovoltaic (OPV) material systems are hypothesized to depend strongly on the intermolecular arrangements at the donor:fullerene interfaces. A review of some of the most efficient polymers utilized in polymer:fullerene PV devices, combined with an analysis of reported polymer donor material…
Semiconductor photocatalysis is a promising approach to combat both environmental pollution and the global energy shortage. Advanced TiO2-based photocatalysts with novel photoelectronic properties are benchmark materials that have been pursued for their high solar-energy conversion efficiency. In general, the photocat…
Abstract Electromagnetic absorbers have drawn increasing attention in many areas. A series of plasmonic and metamaterial structures can work as efficient narrowband absorbers due to the excitation of plasmonic or photonic resonances, providing a great potential for applications in designing selective thermal emitters,…
Metalorganic frameworks (MOFs) are a relatively newclass of crystalline porous materials. One family of these materials that has attracted considerable attention due to their high thermal, chemical, and mechanical stability is the zirconium based MOFs of the UiO family. The material with benzene-1,4-dicarboxylic acid…
The layer of non-impregnated aramid fibers is widely used in the containment systems of aircraft gas turbine engines. Such systems are found to be especially cost-effective and light weight for mitigating engine debris during a fan blade-out event. This is mostly because non-impregnated aramid fibers have a high stren…
采用水热方法合成了4种Sm 3+ 配合物，即{[SmZn（2，5-pdc） 2 （tp） 0.5 （H 2 O）] ·2H 2 O} n （ 1 ），[Sm 2 Zn 2 （C 6 H 5 COO） 10 （Imh） 2 （H 2 O） 2 ] （ 2 ），{[Sm 2 （NO 2 C 6 H 4 COO） 6 （H 2 O） 4 ] ·H 2 O} n （ 3 ）和{[SmN（CH 2 COO） 3 （H 2 O） 2 ] ·H 2 O} n （ 4 ）[2，5-pdc=2，5-吡啶二羧酸根，tp=对苯二甲酸根，C 6 H 5 COO=苯甲酸根，Imh=咪唑，NO 2 C 6 H 4 COO=对硝基苯甲酸根，N（CH 2 COO…
The main focus of the research was to correlate composition and sintering parameters with the microstructure and dielectric properties of Ta2O5 doped BaTiO3 ceramics. The samples were sintered using both single and two-stage sintering techniques. Thereafter SEM and XRD techniques were used to examine the structure of…
Next generation aircraft will require more onboard electrical power generation capacity as systems previously powered by engine bleed and hydraulics are electrified and new electricity based technologies are integrated. Increasing the amount of electrical power generated from aircraft main engines reduces thrust capac…
The ability to generate and utilize multiexcited electronic states in colloidal quantum dots (QDs) is key to a growing range of QD technologies, but the factors that control their radiative and nonradiative recombination dynamics are not yet fully resolved. A significant barrier toward a greater understanding of these…
Appropriate high level radioactive waste container materials in China are still under investigation. The corrosion behaviours of four types of materials (carbon steel Q235, aluminium alloy 2024, copper and stainless steel SUS 304) in simulated groundwater at room temperature were investigated. The corrosion rate was m…
Graphene nanoplatelet has been found to be able to improve the mechanical and electrical properties of concrete so that it can make the concrete to be a "smart material". However, its effects on some other properties of graphene additive concrete, e.g., frost and corrosion resistance, remain unknown. Therefore, it can…