We report facile methods of preparing nanosized hydrotalcite-like compounds, the layered double hydroxides (LDH), with ordinary chemistry laboratory settings to educate young scientists from high schools undergraduate university level fostering their research interest in these nanomaterials practical importance. Coprecipitation and urea hydrolysis have been recommended as routes magnesium-alumi...

The incorporation of sodium and aluminium in magnesium silicate hydrate phases (M-S-H), possible binding cement, was investigated. Magnesium alumino containing (M-A-S-H N samples) were synthesized batch experiments with NaNO3 ~ 100 mmol/L at Mg/Si ratios equal to 0.8 1.2, Al/Si 0, 0.1 0.2, equilibrated 20 50 °C. Thermogravimetric analysis (TGA), X-rays diffraction (XRD), 29Si MAS NMR data showe...

The effect of alumina and carbonates on magnesium silicate hydrate (M-S-H) cements was investigated at high Mg/Si ratios (1.5–2.5), constant Na2CO3 concentration (17 g/L) Al/Si ratio either 0, 1 or 3.2. Either MgO MgO/hydromagnesite (50/50 wt %) used, as well silica fume, metakaolin amorphous Al2O3. Thermogravimetric analysis (TGA), X-ray diffraction (XRD), 29Si 27Al MAS NMR data showed that M-...

The objective of the present work is to study the casting characteristics of various A1-Li alloys, which include fluidity and strengths of the alloys and their interaction with cast molds. Materials investigated are Al-Li-Mg and Al-Li-Cu-Mg alloys with Li content of 2.5 wt%. The results show that sand molds with resin binders are good for A1-Li casting. Ceramic coatings can further reduce the m...

In this review, we describe the development by our research group of highly functionalized heterogeneous Olympic medal metal (gold, silver, and copper) nanoparticle catalysts using hydrotalcite as a support, aimed towards Green and Sustainable Chemistry. Olympic medal metal nanoparticles can cooperate with the basic sites on the hydrotalcite surface, providing unique and high performance cataly...

Layered double hydroxides (LDHs), also known as anionic clays or hydrotalcite-like materials, are a large family of 2D materials constituted by positively charged sheets of hydroxides intercalated by negatively charged anions. In general, the hydrotalcite structures are very robust, with a wide range of possible compositions and so with easily tunable functional properties. In fact, the most ap...