Materials Literature
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A thiophene motif has been integrated into mesoporous carbon nitride (MCN) to improve the photoactivation of molecular oxygen towards the selective oxidation of alcohols. This modification also extends the photoactive part of the spectrum of MCN by electronic modification of the conjugated system.
Many metabolic pathways and cellular processes occurring in most sub-cellular compartments depend on the functioning of iron-sulfur (Fe-S) proteins, whose cofactors are assembled through dedicated protein machineries. Recent advances have been made in the knowledge of the functions of individual components through a c…
A spirobenzopyran-quinoline (SBPQ) based sensor was synthesized which selectively detects trivalent ions viz. Al(3+), Fe(3+) and Cr(3+) through a fluorescence turn on signal in the red region (~675 nm) with the detection limit in the order of 10(-8) M. The potentiality of the probe was confirmed by employing it for fl…
The fabrication and dielectric properties of a novel multi-component high-k composite system consisting of poly(vinylidene fluoride), surface-functionalized graphene nanosheets and BT nanoparticles (fRGO–BT/PVDF) were investigated. The fRGO nanosheets were prepared through the π–π stacking of polyaniline and GO follow…
Trends in the HER are studied on selected metals (M= Cu, Ag, Au, Pt, Ru, Ir, Ti) in acid and alkaline environments. We found that with the exception of Pt, Ir and Au, due to high coverage by spectator species on non-noble metal catalysts, experimentally established positions of Cu , Ag, Ru and Ti in the observed volca…
We report an effective and green precursor-based route for preparing a sheet-like ZnO assembly composed of small ZnO particles, which showed good photocatalytic performance under UV light irradiation. The process involved first preparing a zinc glycerol precursor and then calcination to transform it into a sheet-like…
We report a mechanistic study of the catalytic effect of Ni(OH)2 on hematite nanowires for photoelectrochemical water oxidation. Ni compounds have been shown to be good catalysts for electrochemical and photoelectrochemical water oxidation. While we also observed improved photocurrents for Ni-catalyst decorated hemati…
The last decade has witnessed great progress in conjugated polymers for application in optoelectronics. The biggest driving force for the field is to develop polymers with suitable HOMO and LUMO orbital energies, as well as high charge carrier mobility for improved performance in practical devices. Apart from the conv…
Nitrogen-doped (N-doped) carbon-coated Li4Ti5O12 microspheres are synthesized by a solution method combined with heat treatment, in which polydopamine-coated TiO2 is first prepared and subsequently transformed in situ into N-doped carbon-coated Li4Ti5O12 microspheres. Importantly, neither templates nor rigorous reacti…
A novel electrocatalyst of layered MoS2 supported on reduced graphene oxide (RGO) decorated with nano-sized tungsten carbide (WC) shows an enhanced catalytic performance in the hydrogen evolution reaction, which could be attributed to the presence of a conductive and electrocatalytically-active nano-WC dispersant and…
Graphene oxide (GO) is attracting an ever-growing interest in different fields and applications. Not much is known about the possible impact of GO sheet lateral dimensions on their effects in vitro, especially on human primary cells. In an attempt to address this issue, we present a study to evaluate, how highly solub…
We describe state of the art methods for the calculation of electronic excitations in solids and molecules, based on many body perturbation theory, and we discuss some applications of these methods to the study of band edges and absorption processes in representative materials used as photoelectrodes for water splitti…
We report a one step and environment-friendly synthesis of cellulose nanocrystal (CN)-supported palladium nanoparticles (Pd NPs) without employing any other reductants, capping or dispersing agents. CNs played a dual role as a supporting matrix and a reductant and they were used to obtain stable dispersions of Pd NPs.…
Organic light-emitting devices (OLEDs) are on the lips of most electronic manufacturers currently. With good progress made in terms of production cost, efficiency and color output, OLEDs have found more applications recently as compared to those some years ago. Because of the possibility of obtaining long-lasting, dur…
The discovery of the Raman effect in 1928 not only aided fundamental understanding about the quantum nature of light and matter but also opened up a completely novel area of optics and spectroscopic research that is accelerating at a greater rate during the last decade than at any time since its inception. This introd…
Potassium niobate (KNbO3) microcubes with orthorhombic and tetragonal phases were hydrothermally prepared and characterized by powder X-ray diffraction, nitrogen adsorption-desorption, micro-Raman spectroscopy, Fourier transform infrared spectroscopy, diffuse reflectance UV-visible spectroscopy, X-ray photoelectron sp…
Voltage fade of layered, Li-intercalating transition metal oxides is caused by irreversible, structural changes.A method that uses a resistance-corrected average voltage is proposed to track and quantify voltage fade in a reproducible and time-efficient manner.it is used here to compare several layered oxides in terms…
Two-dimensional nanosheets can leverage on their open architecture to support facile insertion and removal of Li(+) as lithium-ion battery electrode materials. In this study, two two-dimensional nanosheets with complementary functions, namely nitrogen-doped graphene and few-layer WS2, were integrated via a facile surf…
Graphene oxide (GO) has been extensively studied for potential biomedical applications. Meanwhile, potential GO toxicity arises in both biomedical applications and non-biomedical products where environmental exposures may occur. In the present study, we examined the potential adverse effects of GO and the underlying m…
Polyvinyl alcohol (PVOH) is a synthetic hydrophilic linear polymer that generally exists as a copolymer of vinyl alcohol and vinyl acetate. Therefore, the structural properties of PVOH polymers primarily depend on the degree of polymerization and the degree of hydrolysis, i.e., the ratio of the two monomers. Due to re…