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Exfoliated graphene into highly ordered mesoporous titania films: highly performing nanocomposites from integrated processing

Malfatti, Luca and Falcaro, Paolo and Pinna, Alessandra and Lasio, Barbara and Casula, Maria Francesca and Loche, Danilo and Falqui, Andrea and Marmiroli, Benedetta and Amenitsch, Heinz and Sanna, Roberta and Mariani, Alberto and Innocenzi, Plinio (2014) Exfoliated graphene into highly ordered mesoporous titania films: highly performing nanocomposites from integrated processing. ACS Applied Materials and Interfaces, Vol. 6 (2), p. 795-802. ISSN 1944-8244. eISSN 1944-8252. Article.

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DOI: 10.1021/am4027407

Abstract

To fully exploit the potential of self-assembly in a single step, we have designed an integrated process to obtain mesoporous graphene nanocomposite films. The synthesis allows incorporating graphene sheets with a small number of defects into highly ordered and transparent mesoporous titania films. The careful design of the porous matrix at the mesoscale ensures the highest diffusivity in the films. These exhibit an enhanced photocatalytic efficiency, while the high order of the mesoporosity is not affected by the insertion of the graphene sheets and is well-preserved after a controlled thermal treatment. In addition, we have proven that the nanocomposite films can be easily processed by deep X-ray lithography to produce functional arrays.

Item Type:Article
ID Code:9916
Status:Published
Refereed:Yes
Uncontrolled Keywords:Mesoporous materials, patterning, titania, exfoliated graphene, thin films
Subjects:Area 03 - Scienze chimiche > CHIM/04 Chimica industriale
Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 Scienza e tecnologia dei materiali
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Architettura, Design e Urbanistica
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Architettura, Design e Urbanistica > LMNT-Laboratorio di Scienza dei Materiali e NanoTecnologie
001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:American Chemical Society
ISSN:1944-8244
eISSN:1944-8252
Copyright Holders:© 2013 American Chemical Society
Deposited On:25 Jun 2014 10:36

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