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Letter

New J. Chem., 2009, 33, 2204 - 2207, DOI: 10.1039/b9nj00481e

Towards molecular batteries: coverage of small aminosilica nanoparticles with ferrocenyl and pentamethylferrocenyl groups and their redox properties

Tetsuro Kusamoto, Jaime Ruiz and Didier Astruc

Small aminosilica nanoparticles (NPs, 12 nm SiO2 core) were covered with ferrocenyl (Fc) and pentamethylferrocenyl (Fc*) groups by reactions with metallocenyl carbonyl chlorides. Cyclic voltammetry in methanol/acetonitrile showed a single fully chemically- and electrochemically-reversible wave with a diffusion-controlled current; colorimetric titrations with [FcCOMe][BF4] of the Fc-SiO2 and Fc*-SiO2 NPs indicated a coverage of the aminosilica NPs of 335 ± 50 Fc or 240 ± 40 Fc* groups.

Graphical abstract image for this article (ID: b9nj00481e)