Self-assembled solution micelles prepared from polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) and polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP), have been employed as templates to synthesize copper nanocatalysts which are regarded as an excellent catalyst system for 1D nanomaterial synthesis. We have demonstrated that uniform-sized nanoparticles with diameters ranging from 1 to 15 nm have be...

Sulfur doped titanium dioxide anatase nano-photocatalyst with different copper loadings (5, 10, 15, and 20 w/w %) was synthesized by hydrothermal method. The fabricated nanocatalysts were found to have high surface area, high aspect ratio, good surface morphology and high metals dispersion. The synthesized nanocatalysts were characterized by X-ray powder diffraction (XRD), Scanning electron mic...

Compared with their monometallic counterparts, bimetallic nanoparticles often show enhanced catalytic activity associated with the bimetallic interface. Direct quantitation of catalytic activity at the bimetallic interface is important for understanding the enhancement mechanism, but challenging experimentally. Here using single-molecule super-resolution catalysis imaging in correlation with el...

Identifying effective means to improve the electrochemical performance of oxygen-evolution catalysts represents a significant challenge in several emerging renewable energy technologies. Herein, we consider metal-nitrogen-carbon sheets which are commonly used for catalyzing the oxygen-reduction reaction (ORR), as the support to load NiO nanoparticles for the oxygen-evolution reaction (OER). FeN...

Designing and building an ideal catalyst for organic reactions is needed to increase the efficiency, reaction conditions, reduce its environmental impacts. The growth of nanotechnology realized in production various nano-level catalysts different applications. as-synthesized nanocatalysts are easily manipulated a desired shape size with high surface area volume ratio, which their critical prope...

This study presents an experimentally identified derivatogram of bentonite from the Navbahor mine, texture bentonite, physical and chemical characteristics, composition, their analysis retaining substance used in preparation nanocatalysts based on Zolgel technology.

A systematic study was conducted to understand the influences of catalyst combination as Ni-Co NPs on carbon nanotubes (CNTs) grown by Chemical Vapor Deposition (TCVD). The DC-sputtering system was used to prepare Co and Ni-Co thin films on silicon substrate. Ni- Co nanoparticles were used as metal catalyst for growing carbon nanotubes from acetylene (C2H2) gas in 850 ̊ C during 15 min. Carb...

Rigid dendrimers with flexible ferrocenyltriazolyl termini serve as excellent supports for remarkably efficient and recyclable Pd Au nanocatalysts biphasic reduction of 4-nitrophenol to 4-aminophenol at 20 °C.

Platinum nanocatalysts have shown high performance in a wide variety of electrocatalytic reactions, making them the focus many studies. High quality characterization results are vital for proper understanding catalyst's structure and properties, allowing further discoveries to be made. X-ray absorption spectroscopy is powerful tool, permitting both local electronic properties determined sample ...

Multi-phase catalytic hydrogenations play a significant role in converting bio-derived materials to commodity chemicals and liquid fuels. It is desirable to conduct the reaction efficiently, economically and in an environmentally-friendly manner to achieve the goals of green chemistry. However, mass transfer limitations and harsh reaction conditions often interfere with the assessment of intrin...