Hydrotalcite-supported Pd/Sn catalysts with different Mg/Al atomic ratios (2, 3, 4, and 5) for nitrate adsorption and hydrogenation reduction were successfully synthesized by a coprecipitation method. The results showed that different atomic ratios of Mg/Al resulted in different interlayer spacings and zeta-potentials of the catalysts, which thus influenced its adsorption capacity. With the inc...

Layered double hydroxides (LDHs), also known as hydrotalcite-like compounds, are widely used in many fields due to their unique structural advantages. Based on LDHs, a wide range of metal catalysts could be synthesized with high dispersion, tunable acid-base properties, facile but flexible preparation methods, strong metal-support interaction, and thermal stability. Owing these outstanding adva...

Abstract In the downstream of Oil & Gas industry and decline in oil production, NiAl-HT derived hydrotalciteis a candidate as catalyst to produce syngas methane dry reforming process. Hydrotalcite are lamellar compounds general formulation[M 1-x 2+ M x 3+ (OH) 2 ] x+ [A n- x/n .m H Owhere ionic or cationic character can be tuned by choice metal nature oxidation degree. NiAl-SPC samples were...

Samples of layered double hydroxides were prepared by a sol-gel procedure. Quinolinate Al(C9H6NO)3 units were added during the synthesis, leading to composite quinolinate hydrotalcite-like compounds. The amount of quinolinate was varied, showing that the number of organic building blocks determines the physicochemical properties of materials, which differ significantly from those commonly repor...

Hydrotalcites are quite prevalent in nature and their importance is growing more and more because of their very wide range of potential applications and uses. Because hydrotalcite does not exist in significant quantities in nature, coprecipitation methods are the most used for prepartion of hydrotalcite. In this study: Two types of Nano hydrotalcite compounds containing one divalent (Mg-Al) and...

Chemoselective hydrogenation of unsaturated aldehyde to alcohol has attracted growing interests in recent years due its widespread applications fine chemicals. However, the C=O bond was thermodynamically and kinetically unfavorable over C=C bond. Thus, obtain from is very difficult most catalytic systems. In this work, ZnAl-hydrotalcite-supported cysteine-capped Au25 nanoclusters were used as p...

Solid acid catalysts of MgO–Al2O3 mixed oxides containing B4O72−, HPO42−, Mo7O246−, MoO42−, WO42−, and SO42− were synthesized by anion exchange with Cl− located in the space between anionic layers hydrotalcite, followed heat treatment at 773 K. The distance hydroxide was expanded intercalation oxyanions larger than Cl−. interlayer confirmed IR spectroscopy. Acid sites generated on obtained elec...