r1.3oT.nAhmes eZannmtFaalei2innOmt4imeMmaNcbyPe,rsnohofantvtheoexafitectrritrayict,teaenfdadmmpiuhlyca,hsZeantsFtteaenb2Otiiloi4tnhy1ad7s–u1p9er.otomtihseinirgmpoatgennettiaicl Most solid-state acids are heterogenized organic acids and transition metal complexes or acidic ion-...
ILs contain special and great properties such as wide range thermal stability, good solvating ability, high ionic conductivity, negligible vapor pressure or non-volatility at room temperature, non-flammability, low toxicity, adjustable solubility, and very low corrosivity14,15. ILs are novel ...
This behavior is consistent with the assessment of ionic bond fraction carried out in this study, and suggested the acidic nature of germanium oxide (GeO) in the slag system studied. The characterisation results of the quenched slag suggested that Ge is present in the FeO-CaO-SiO-MgO slag ...
are used [41]. Alternatively, it is treated by precipitation and redissolution methods, which are not economical, in terms of neither cost nor human workforce [42]. The major disadvantage of Fenton process is its limitation to acidic pH (pH = 3). Further, in many cases, homogeneous ...
doi:10.1016/j.chemgeo.2007.02.016Derek R. AmoresLesley A. WarrenElsevier B.V.Chemical GeologyAmores, D.R., Warren, L.A., 2007. Identifying when microbes biosilicify: the interconnected requirements of acidic pH, colloidal SiO2 and exposed microbial surface. Chem. Geol. 240(3-4): 298-312...
doi:10.1016/j.chemgeo.2008.01.002CorundumsolubilityExperimentalpetrologyAlmobilityMetamorphicfluidsThe solubility of corundum was measured at 800 °C and 10 kbar in NaCl–H2O–SiO2 fluids over NaCl mole fractions (XNaCl) of 0 to 0.5 and SiO2 concentrations of zero to quartz or albite +...
(NS) on the fresh, compressive strength, splitting tensile strength, flexural strength, stress–strain behaviors, modulus of elasticity, water absorption, rapid chloride permeability, resistance to an acidic environment, and microstructural properties like scanning electron microscopy (SEM) and X-ray ...
For example, the T50 of K-OMS-2/SiO2-50, 328 °C, is much lower than those of Pt/ Al2O3 and 3DOM Au/LaFeO3, 464 and 356 °C,respectively. Moreover, catalysts exhibited high catalytic stability. It is attributed to that the K+ ions are introduced into the microporous ...
An effective method of producing nano-hybrid is to hydrolyze perfluoroalkyl silane with 4 to 6 functional silanes, the nano source material in acidic, or alkali conditions. Therefore, in this experiment, the intermediate FVPS was hydrolyzed with TEOS in a mole ratio of 1:3 (FVPS:TEOS) at ...
2.2. Synthesis and Preparation of the Photocatalysts The synthesis of pure and Pt-doped TiO2/SiO2 was performed using an acidic sol-gel procedure based on the adaptation of a method previously developed by Gusmão et al. (2021) for the synthesis of Ag-TiO2/SiO2. First, 8.4 mL of TTIP wa...