Mortars with two different binders (Portland cement (PC) and high alumina cement (HAC)) were modified upon the bulk incorporation of nano-structured photocatalytic additives (bare TiO₂, and TiO₂ doped with either iron (Fe-TiO₂) or vanadium (V-TiO₂)). Plastic and hardened state properties of these mortars were assessed in order to study the influence of these nano-additives. Water demand was inc...

Developing new methods to prepare pseudocapacitive materials with high pseudocapacitance/electronic conductivity is of great interest for hybrid supercapacitors. Recently, the exfoliation/restacking manganese and cobalt layered transition metal oxides was proposed. Despite improved electrochemical performance such Mn-Co composites, their bulk organization (i.e. scale at which stacking occurs) s...

Designs of multilayer antireflection coatings made from co-sputtered and low-refractive-index materials are optimized using a genetic algorithm. Co-sputtered and low-refractive-index materials allow the fine-tuning of refractive index, which is required to achieve optimum anti-reflection characteristics. The algorithm minimizes reflection over a wide range of wavelengths and incident angles, an...

This paper reports the feasibility of synthesis and characterization of One Dimensional nano scale Porous Silicon Photonic Crystals (1D-PSPC) prepared using electrochemical anodization of p-type crystalline silicon wafer by adjusting the current densities. Two structures PSPC1 and PSPC2 with current density 25 and 35mA/cm with 10 minutes of etching time were prepared. Structural and optical pro...

We investigate the PL characteristics of the equivalent-size controlled Si-QDs by employing the nano-porous AAO membrane as the template for growing Si-rich SiOx nano-rods to achieve the spatially confined synthesis of Si-QD. The ultra-bright PL can be emitted from the SiOx nano-rod in nano-porous AAO membrane. In addition, we preliminarily demonstrate the in-situ high-temperature synthesis of ...

LiFePO4 with an ordered olivine structure has been recognized as a promising cathode material for advanced Li-ion batteries due to its excellent thermal and structural stability, low cost of starting materials, high reversibility of Li ion insertionextraction, and non-toxicity . However, its practical application has suffered from the inherently poor kinetic properties caused by the low electro...

The current study aims to investigate the effect of fillers with different geometries and sizes on the interfacial shear properties of PA6 composites with de-sized carbon fiber. The fillers which have been investigated are namely; nano-layer silicates (nanoclay), sub-micro aluminum titanium (ALTi) particles, and multiwall carbon nanotube (MWCNT). By means of X-ray photoelectron spectroscopy (XP...

the effects of nano titanium dioxide incorporation were investigated on the water vapor permeability, oxygen permeability, and antimicrobial properties of bovine gelatin films. the nano tio2 (tio2- n) was homogenized by sonication and incorporated into bovine gelatin solutions at different concentrations (e.g. 1, 2, 3, and 5% w/w of dried gelatin). the permeability of the films to water vapor a...