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

Sorption of hydrogen onto titanate nanotubes decorated with a nanostructured Cd3[Fe(CN)6]2 Prussian Blue analogue
Sorption of hydrogen onto titanate nanotubes decorated with a nanostructured Cd3[Fe(CN)6]2 Prussian Blue analogue
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
ferricyanide, titanate nanotubes, cadmium hexacyanoferrate, hydrogen storage, high pressure
0360-3199
318-326
Al-Hajjaj, A.A.
94ecc7bb-9ee6-43f7-8510-f241504ee29f
Zamora, B.
8924a223-c604-4d73-87d7-edb261cd10e6
Bavykin, D.V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
Reguera, E.
0b7659a1-5153-4a5c-877a-95f663a0c555
Al-Hajjaj, A.A.
94ecc7bb-9ee6-43f7-8510-f241504ee29f
Zamora, B.
8924a223-c604-4d73-87d7-edb261cd10e6
Bavykin, D.V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
Reguera, E.
0b7659a1-5153-4a5c-877a-95f663a0c555

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), 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

Text
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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: https://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: 01 Dec 2017 17:34

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