Electrochemically Assisted Generation of Highly Ordered Azide‐Functionalized Mesoporous Silica for Oriented Hybrid Films

Abstract

One key challenge in inorganic mesoporous films is the development of oriented mesostructures with vertical channels, and even more challenging is their functionalization while maintaining accessible the selected surface groups. Combining the electrochemically assisted deposition of ordered and oriented azide-functionalized mesoporous silica with alkyne-azide click chemistry enables such nanostructured and vertically aligned hybrid films to be obtained with significant amounts of active organic functional groups, as illustrated for ferrocene and pyridine functions. A good level of mesostructural order was obtained, namely up to 40% of organosilane in the starting sol. The method could be applied to a wide variety of functional groups, thus offering numerous new opportunities for applications in various fields.

Adsorption of Microperoxidase-11 in Vertical Silica Mesochannels and Electrochemical Investigation of Its Electron Transfer Properties

“…0.2 V in comparison with that at a bare ITO electrode due to the variation of microenvironment. All these voltammetric data coincide well with those reported previously [28][29][30][31].…”

Monodisperse magnetic ion imprinted polymeric microparticles prepared by RAFT polymerization based on γ-Fe2O3@meso-SiO2nanospheres for selective solid-phase extraction of Cu(ii) in water samples

“…12 Inspired by this, various nanosized substrates (e.g. [20][21][22] Combining the large BETsurface area and fast mass transfer of ordered mesostructure, 23 with the quantum effect 24 and excellent magnetic responsiveness of magnetic nanoparticles, OMSMN can be used as an ideal candidate as matrix in nanobased surface imprinting. 16 In particular, silica-wrapped core-shell magnetic nanoparticles (g-Fe 2 O 3 @SiO 2 , Fe 3 O 4 @SiO 2 , et al) have attracted increasing attention in surface imprinting, due to the silica shell reveals some prime advantages such as decreasing the aggregation of the magnetic particles 17,18 and achieving functionalization easily.…”

Single-Molecule Electrochemistry on a Porous Silica-Coated Electrode

“…Our ongoing studies focus on fine-tuning the properties of the mesoporous silica film including film thickness, pore size, and surface chemistry, 30,43 in order to further improve its performance in single-molecule electro-chemistry. The future incorporation this method with FEEM also holds the possibility for optically reporting single electron-transfer process of any electroactive species.…”