Erratum: Ramanathan, A.; et al. Metal-Incorporated Mesoporous Silicates: Tunable Catalytic Properties and Applications. Molecules 2018, 23, 263
The authors wish to make the following change to their paper [1].[...].
Metal-Incorporated Mesoporous Silicates: Tunable Catalytic Properties and Applications
A relatively new class of three-dimensional ordered mesoporous silicates, KIT-6, incorporated with Earth-abundant metals such as Zr, Nb, and W (termed as M-KIT-6), show remarkable tunability of acidity and metal dispersion depending on the metal content, type, and synthetic method. The metal-incorporation is carried out using one-pot synthesis procedures that are amenable to easy scale-up. By such tuning, M-KIT-6 catalysts are shown to provide remarkable activity and selectivity in industrially-significant reactions, such as alcohol dehydration, ethylene epoxidation, and metathesis of 2-butene and ethylene. We review how the catalytic properties of M-KIT-6 materials may be tailored depending on the application to optimize performance.
Synthesis and characterization of Zirconium incorporated ultra large pore mesoporous silicate, Zr–KIT-6
Abstract Zirconium was incorporated into ultra large pore mesoporous silicate, KIT-6, for the first time via hydrothermal synthesis using a Pluronic P123 triblock copolymer as the structure directing agent and n -butanol as additive. Various characterization tools such as XRD, elemental analysis, N 2 sorption, HR-TEM, 29 Si MAS NMR, DR-UV–Vis and NH 3 -TPD were employed to understand the morphology, textural properties, structure and the nature of Zirconium coordination. The Zr–KIT-6 samples possess a very high specific surface area of ∼740 m 2 /g with pore volume of ∼1.1 cm 3 /g. An average pore size of about 9 nm is evident from N 2 sorption and HR-TEM studies. Even though the majority of Zr is incorporated in the silicate framework, highly dispersed ZrO 2 nanoparticles are evident in all the samples. The Zr–KIT-6 is also shown to possess acid sites of medium strength.