The triboelectric nanogenerator (TENG) has attracted enormous amount of attention in the research community in recent years because of its simple design, high energy conversion efficiency, broad application areas, a wide materials spectrum, and low-temperature easy fabrication. A key factor that dictates the performance of the TENGs is the surface charge density, which can be taken as a standar...

A kind of spin crossover-macromolecule polymer composite material, [Fe(NH(2)trz)(3)(ClO(4))(2)]-PVP (NH(2)trz is 4-amino-1,2,4-triazole and PVP is polyvinylpyrrolidone), appears as homogeneous film with a regular structure in nano-scale and shows the spin crossover (SC) phenomenon.

nano-structured lanthanum strontium cobalt ferrite, la0.6sr0.4co0.2fe0.8o3 (lscf), was successfully synthesized via co-precipitation method using metal nitrates as starting materials. effects of precipitating agent and calcination temperature on the phase composition and morphology of synthesized powders were systematically studied using x-ray diffraction (xrd) and field emission scanning elect...

Serious cases of corrosion of metallic structures under both alternating current (ac) and cathodic protection (cp) have been reported. The objective of this research is to propose a mechanism by which ac affects the nano sized/structured surface films formed on metals under cp. A model will be proposed and experimentally validated, in order to relate the metal corrosiveness to its nano sized/st...

During the last decade, major efforts have been made to develop adequate and commercially viable processes for disintegrating cellulose fibres into their structural components. Homogenisation of cellulose fibres has been one of the principal applied procedures. Homogenisation has produced materials which may be inhomogeneous, containing fibres, fibres fragments, fibrillar fines and nanofibrils....

In this work, a selection of food-grade ceramic materials (CM1, CM2) was evaluated in terms capacity to adsorb pathogenesis-related proteins (PRPs), thus preventing protein haze bottled white wines. The CM1 found as the most effective sorbent material, when used nano-structured form (nano-powders and mesoporous films) which magnifies specific surface available for adsorption. material showed hi...

Ag4Bi2O5/MnO2 nano-sized material was synthesized by a co-precipitation method in concentrated KOH solution. The morphology characterization indicates that MnO2 nanoparticles with a size of 20 nm are precipitated on the surface of nano Ag4Bi2O5, forming a structure like corn on the cob. The obtained material with 60% Mn offers slightly higher initial potential (0.098 V vs. Hg/HgO) and limiting ...

Abstract Injection moulding of micropillar arrays offers a fast and inexpensive method for manufacturing sensors, optics, lab-on-a-chip devices, medical devices. Material choice is important both the function device optimisation. Here, comparative study poly(methyl methacrylate) (PMMA) cyclic olefin copolymer (COC) injection presented. These two polymers are chosen their convenient physical, ch...