Webb11 apr. 2024 · In the current work, ytterbium oxide (Yb2O3) powders with the europium (Eu3+) were synthesized by the epoxide-driven sol–gel process. Yb2O3-europium xerogels were synthesized at different molar ratios (0, 2, 5, 8, 10, 20, 30, 40, and 50 mol%) and heat-treated at 1273 K in order to yield a dense crystalline material. The powders were … WebbThe resultant product was then dried in an oven at 120 °C and subjected to the calcination at 650 °C for conversion of carbonates present into their corresponding oxides [27]. ... Removal of Congo red from aqueous solution by anilinepropylsilica xerogel. Dyes Pigments, 76 (2008), pp. 64-69. View PDF View article View in Scopus Google Scholar
Synthesis of Highly Phase Pure Cuprate Superconductor via Xerogel …
WebbDesign for Durability and Performance Density [1st ed.] 9783030568153, 9783030568160. This book is about mechanical design engineering, in particular design for mechanical system durability and performance WebbThe gelation can begin before the hydrolysis is complete (i.e. the sol and the gel steps can be concurrent). The product may be aged and dried under ambient atmosphere to produce a xerogel with high porosity and high specific surface area. Alternatively, the gel may be supercritically dried to produce an aerogel . curly demon
Zirconia aerogels and xerogels: Influence of solvent and acid on ...
Webb28 jan. 2015 · The ground carbon xerogel (1 g) was suspended in an H 2 PtCl 6 aqueous solution (0.6 g Pt /L) for 1 h, at ambient temperature, under magnetic stirring. At the beginning of the impregnation, the pH of the solution was always about 2.2, due to the acidity of H 2 PtCl 6. After 24 h of magnetic stirring, NaBH 4 was added to reduce the Pt … WebbA lithium-ion battery comprising an anode, a cathode, a lithium-ion permeable and electrically insulating separator that electrically separates the anode from the cathode, and an artificial solid-electrolyte interface (SEI) layer disposed between the anode and the separator wherein (a) the artificial SEI layer has a lithium-ion conductivity greater than … Webb20 Claims. (Cl. 252451) ABSTRACT OF THE DISCLOSURE A process for preparing a silica-containing gel characterized in that a xerogel derived therefrom has a pore volume of from about 1.3 to about 2.0 cc./g. when measured after calcining said xerogel, said process comprising: 1) reacting (a) an alkali metal silicate with (b) mineral acid, (c) in a water … curly design images