We decorated HS-functionalized cellulose nanocrystallite (CNC) films with monodisperse Au nanoparticles (AuNPs) to form a novel nanocomposite catalyst AuNPs@HS-CNC. The uniform, fine AuNPs were made by the reduction of HAuCl4 solution with thiol (HS-) group-functionalized CNC films. The AuNPs@HS-CNC nanocomposites were examined by X-ray photoelectron spectroscopy (XPS), TEM, ATR-IR and solid-st...

Oxide nanocrystallite aggregates are candidates for use in dye-sensitized solar cells. The aggregates are of submicron size, formed by nano-sized crystallites and, therefore, able to offer both a large specific surface area and desirable size comparable to the wavelength of light. While used for a photoelectrode in a dye-sensitized solar cell, the aggregates can be designed to generate effectiv...

Hydroxyapatite is a material that has the same structure and composition as main minerals of human teeth bones. This study's purpose was hydroxyapatite synthesis determining effect variations in ball sizes, ratio mass precursors to balls size, milling time, size crystals particles, surface area morphology produced by mechanochemical method. Two different sizes (3mm 6mm) three powder 1:1.44; 1:2...

The microstructural changes induced by ion implantation may lead to advantageous modifications of chromium disilicide's (CrSi2) electrical and thermal properties. As a potential thermoelectric material, CrSi2 has attracted attention due its semiconductor properties high stability. This contribution investigates the influence different species conditions on microstructure, resistivity ρ conducti...