Tag: Chem. Commun.

Hot off the press: accepted manuscript in Chem. Commun.

GA-silica-fe203-au

Today is the big day: second manuscript accepted!

The manuscript “A silica-based magnetic platform decorated with mixed ligand gold nanoparticles: A recyclable catalyst for esterification reactions” (Elif Ertem, Nerea Murillo-Cremaes, Randy Patrick Carney, Anna Laromaine, Emma-Rose Janeček, Anna Roig* and Francesco Stellaccia*; DOI: 10.1039/C6CC01146B) has been accepted in Chemical Communications

This paper describes a novel and convenient synthetic strategy for the preparation of magnetically responsive silica nanospheres decorated with mixed ligand protected gold nanoparticles. Gold nanoparticles are attached to the silica surface via stable amide bond formation. The hierarchical nanospheres show promising results as a reusable and efficient catalyst for esterification reactions and they can be recovered through a simple magnetic separation.

Congratulations!

Figure: Schematic illustration of: (a) the partial ligand exchange of 3-mercapto-1-propanesulfonate (MPSA):1-octanethiol(OT) covered gold nanoparticles, (b) the synthesis of core-shell magnetic silica and (c) the synthesis of the magnetic silica decorated with gold nanoparticles hierarchical nanospheres.

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Hot off the press! New publication in Chem. Commun.

Crystallization of hollow mesoporous silica nanoparticles

Glenna L. Drisko, Adrian Carretero-Genevrier, Alexandre Perrot, Martí
Gich, Jaume Gàzquez, Juan Rodriguez-Carvajal, Luc Favre, David Grosso,
Cédric Boissière,  Clément Sanchez

ChemComm, DOI: 10.1039/x0xx00000x

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Complex 3D nacrostructured nanoparticles are  transformed from amorphous silica into pure polycrystalline α-quartz using catalytic quantities of  alkaline earths as devitrificants. Walls as thin as 10 nm could be crystallized without losing the architecture of the particles. The roles of cation size and the mol% of  incorporated devitrificant on crystallization behavior are studied, with Mg2+, Ca2+, Sr2+ and Ba2+  allproducing pure α-quartz under certain conditions.