A Silica Nanorattle with a Mesoporous Shell: An Ideal Nanoreactor for the Preparation of Tunable Gold Cores

Abstract

Using silica nanorattles filled with N‐[3‐(trimethoxysilyl) propyl] ethylenediamine as nanoreactors, size‐tunable gold cores are fabricated inside the silica nanorattles using a facile, efficient, and large‐scale method.

A facile approach to the fabrication of rattle-type magnetic carbon nanospheres for removal of methylene blue in water

“…The void space within the shell provides a unique space for the core material in confined catalysis [2,3], drug release [4,5], nanoscale reactors [6,7], and lithium-ion batteries [8,9]. The core can endow different functionalities to this type of material, while the shell can protect the core from aggregation and leakage, which can significantly reduce the catalytic efficiency [10].…”

Dendritic porous yolk@ordered mesoporous shell structured heterogeneous nanocatalysts with enhanced stability

“…S11 †), [36][37][38][39][40] high temperature calcination (550 C) causes a drastic thermally induced aggregation of Au NPs in hollow cavities, i.e., resulting in the formation of only one or several large Au NPs. However, a complete or partial embedding of noble metal NPs in the matrix can markedly suppress thermally induced aggregation, [11][12][13][14] but it can diminish the exposed active surface of noble metal NPs, reducing the overall catalytic activity.…”

Active Site Design in a Core–Shell Nanostructured Catalyst for a One‐Pot Oxidation Reaction

“…Although the inner Pd NPs are located at the boundary of the core-shell structure, reactants can penetrate to the Pd NPs through the mesoporous shell. [5] The Ti-oxide moieties located within the mesoporous region are catalytically active toward sulfide oxidation with H 2 O 2 and are considered to be highly dispersed at the atomic level. [6] It is expected that the H 2 O 2 generated on the inner Pd NP sites could selectively interact with the Ti-oxide moieties within the mesopores before dispersion to the solvent can occur, which would ultimately enhance the oxidation activity.…”