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Sorption of hydrogen onto titanate nanotubes decorated with a nanostructured Cd3[Fe(CN)6]2 Prussian Blue analogue

Al-Hajjaj, A.A., Zamora, B., Bavykin, D.V., Shah, A.A., Walsh, F.C. and Reguera, E. (2012) Sorption of hydrogen onto titanate nanotubes decorated with a nanostructured Cd3[Fe(CN)6]2 Prussian Blue analogue International Journal of Hydrogen Energy, 37, (1), pp. 318-326. (doi:10.1016/j.ijhydene.2011.09.094).

Record type: Article

Abstract

Nanostructured films of cadmium hexacyanoferrate (III), Cd3[Fe(CN)6]2 have been deposited on the surface of titanate nanotubes (TiNT) by ion exchange with CdSO4, followed by reaction with K3[Fe(CN)6] in an aqueous suspension. The composite demonstrates a significantly higher hydrogen storage uptake than pure Cd3[Fe(CN)6]2 and TiNT. At a temperature of 77 K and a pressure 100 bar, the hydrogen uptake for the composite is approximately 12.5 wt %, whereas only 4.5 wt % and 4 wt % are achieved for the TiNT and Cd3[Fe(CN)6]2 respectively. Electron microscopy and infrared spectroscopy show that Cd3[Fe(CN)6]2 is uniformly distributed on the surface of the nanotubes forming a discontinuous nanostructured film with a well developed interface, which allows efficient interaction with the support. The possible reasons for the high uptake of hydrogen in the composite are discussed

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More information

e-pub ahead of print date: 18 October 2011
Published date: January 2012
Keywords: ferricyanide, titanate nanotubes, cadmium hexacyanoferrate, hydrogen storage, high pressure
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 207415
URI: http://eprints.soton.ac.uk/id/eprint/207415
ISSN: 0360-3199
PURE UUID: a2711bda-c151-49e5-aeee-e9e1a582e7f2

Catalogue record

Date deposited: 12 Jan 2012 11:07
Last modified: 18 Jul 2017 10:50

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Contributors

Author: A.A. Al-Hajjaj
Author: B. Zamora
Author: D.V. Bavykin
Author: A.A. Shah
Author: F.C. Walsh
Author: E. Reguera

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