Development of exfoliated layered stannosilicate for hydrogen adsorption

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Title: Development of exfoliated layered stannosilicate for hydrogen adsorption
Authors: Rubio, César | Murillo, Beatriz | Casado-Coterillo, Clara | Mayoral, Álvaro | Téllez, Carlos | Coronas, Joaquín | Berenguer-Murcia, Ángel | Cazorla-Amorós, Diego
Research Group/s: Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Hydrogen storage | Layered stannosilicates | Delaminated materials
Knowledge Area: Química Inorgánica
Issue Date: 22-Aug-2014
Publisher: Elsevier
Citation: International Journal of Hydrogen Energy. 2014, 39(25): 13180-13188. doi:10.1016/j.ijhydene.2014.06.149
Abstract: The use of hydrogen as an energy vector leads to the development of materials with high hydrogen adsorption capacity. In this work, a new layered stannosilicate, UZAR-S3, is synthesized and delaminated, producing UZAR-S4. UZAR-S3, with the empirical formula Na4SnSi5O14·3.5H2O and lamellar morphology, is a layered stannosilicate built from SnO6 and SiO4 polyhedra. The delamination process used here comprises three stages: protonation with acetic acid, swelling with nonylamine and the delamination itself with an HCl/H2O/ethanol solution. UZAR-S4 is composed of sheets a few nanometers thick with a high aspect ratio and a surface area of 236 m2/g, twenty times higher than that of UZAR-S3. At −196 °C for UZAR-S4, H2 adsorption reached remarkable values of 3.7 and 4.2 wt% for 10 and 40 bar, respectively, the latter value giving a high volumetric H2 storage capacity of 26.2 g of H2/L.
Sponsor: Financial support from the Spanish Ministerio de Economía y Competitividad (MINECO) is gratefully acknowledged through projects with grant numbers: MAT2010-15870, CTQ2012-31229 and CTQ2012-31762, as well as from the Fondo Europeo de Desarrollo Regional (FEDER), Regional Government of Aragón (DGA) and the European Social Fund (ESF). A. Berenguer-Murcia and C. Casado-Coterillo thank the MINECO for Ramón y Cajal fellowships (RyC 2009-03913 at the University of Alicante and RYC-2011-08550 at the University of Cantabria).
ISSN: 0360-3199 (Print) | 1879-3487 (Online)
DOI: 10.1016/j.ijhydene.2014.06.149
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd.
Peer Review: si
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Appears in Collections:INV - MCMA - Artículos de Revistas

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