We have explored the impact of the incorporation of nanoporous carbons as additives to tungsten oxide on the photocatalytic degradation of two recalcitrant pollutants: rhodamine B (RhB) and phenol, under simulated solar light. For this purpose, WO3/ carbon mixtures were prepared using three carbon materials with different properties (in terms of porosity, structural order and surface chemistry)...

A novel and simple method for the electrochemical modification of ordered mesoporous silica is described. A well-organized thin film of amine-functionalized ordered mesoporous silica has been deposited electrochemically on the electrode surface. The resulting amine-functionalized electrodes were then subjected to post-functionalization with catechol moieties through electrochemical generation o...

Ordered arrays of parallel, cylindrical silicon nanotubes are obtained by aluminothermic reduction SiO2 generated atomic layer deposition (ALD) on nanoporous aluminum oxide templates. The to amorphous Si (a-Si) is characterized a combination X-ray diffraction (XRD), solid-state cross-polarization magic-angle spinning nuclear magnetic resonance (29Si CP-MAS NMR), ultraviolet-visible spectroscopy...

A thermally chargeable capacitor containing a binary solution of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)-imide in acetonitrile is electrically charged by applying a temperature gradient to two ideally polarisable electrodes. The corresponding thermoelectric coefficient is -1.7 mV/K for platinum foil electrodes and -0.3 mV/K for nanoporous carbon electrodes. Stored electrical en...

Several synthesis routes have been developed and correlations between the variables of procedure physicochemical properties nanoporous silica materials MCM-48 type deposited by template method in presence a low-valent iron (II) cation investigated. Changes structure mesoporous framework, its textural degree energy inhomogeneity surface were studied depending on Fe/Si molar ratio, pH values (4 9...

Superhydrophobic nanoporous anodic aluminum oxide (alumina) surfaces were prepared using treatment with vapor-phase hexamethyldisilazane (HMDS). Nanoporous alumina substrates were first made using a two-step anodization process. Subsequently, a repeated modification procedure was employed for efficient incorporation of the terminal methyl groups of HMDS to the alumina surface. Morphology of the...

A robust and efficient non-precious metal catalyst for hydrogen evolution reaction is one of the key components for carbon dioxide-free hydrogen production. Here we report that a hierarchical nanoporous copper-titanium bimetallic electrocatalyst is able to produce hydrogen from water under a mild overpotential at more than twice the rate of state-of-the-art carbon-supported platinum catalyst. A...

A nanoporous carbon was prepared from sulfonic acid based water soluble polymer. Its direct one step carbonization followed by air oxidation led to a porous material whose surface was rich in N-, Oand Scontaining groups. TEM images showed the presence of 10 nm graphitic domains in the carbon matrix. When the carbon was used as a photoanode under visible light irradiation, oxygen evolution occur...