Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 44, 2015
Previous Article Next Article

Adsorption studies of divalent, dinuclear coordination complexes as molecular spacers on SWCNTs

Author affiliations

Abstract

In order to enhance the electrical energy storage capabilities of nanostructured carbon materials, inter-particle spacer strategies are needed to maintain ion-accessible surface area between the nanoparticles. This paper presents a comparison between different classes of divalent, dinuclear coordination complexes which both show strong adsorption to SWCNTs and have molecular spacer properties that maintain electrochemical activity. We find that a novel, dinuclear zinc hydrazone complex binds as an ion-pair at very high loading while not inducing significant aggregation as compared to our previously studies of dinuclear ruthenium complexes. These conclusions are supported by conductivity and dispersion stability data. Moreover, since zinc is an earth abundant metal, these complexes can be used as components in sustainable energy storage materials. Binding kinetics and binding equilibrium data are presented. Modeling of the adsorption isotherm is best fit with the BET model. Kinetics data support an independent binding model. Preliminary capacitance and membrane resistance data are consistent with the complexes acting as molecular spacers between the SWCNTs in a condensed thin film.

Graphical abstract: Adsorption studies of divalent, dinuclear coordination complexes as molecular spacers on SWCNTs

Back to tab navigation

Supplementary files

Article information


Submitted
11 Sep 2015
Accepted
07 Oct 2015
First published
08 Oct 2015

Phys. Chem. Chem. Phys., 2015,17, 29566-29573
Article type
Paper
Author version available

Adsorption studies of divalent, dinuclear coordination complexes as molecular spacers on SWCNTs

J. R. Alston, D. J. Banks, C. X. McNeill, J. B. Mitchell, L. D. Popov, I. N. Shcherbakov and J. C. Poler, Phys. Chem. Chem. Phys., 2015, 17, 29566
DOI: 10.1039/C5CP05419B

Social activity

Search articles by author

Spotlight

Advertisements