Inverse opal nanoassemblies : novel architectures for gas sensors the SnO2:Zn case Sutti, Alessandra, Calestani, Gianluca, Dionigi, Chiara, Baratto, Camilla, Ferroni, Matteo, Faglia, Guido and Sberveglieri, Giorgio 2006, Inverse opal nanoassemblies : novel architectures for gas sensors the SnO2:Zn case, in Nanostructured Materials and Hybrid Composites for Gas Sensors and Biomedical Applications, Materials Research Society, Warrendale, Penn, pp. 257-263. Attached Files Name Description MIMEType Size Downloads Title Inverse opal nanoassemblies : novel architectures for gas sensors the SnO2:Zn case Author(s) Sutti, Alessandra orcid.org/0000-0002-1793-3881 Calestani, Gianluca Dionigi, Chiara Baratto, Camilla Ferroni, Matteo Faglia, Guido Sberveglieri, Giorgio Conference name Materials Research Society. Symposia (2006 : San Francisco, Calif.) Conference location San Francisco, California Conference dates April 18-20, 2006 Title of proceedings Nanostructured Materials and Hybrid Composites for Gas Sensors and Biomedical Applications Editor(s) Comini, Elisabetta Publication date 2006 Series Materials Research Society symposia proceedings ; v. 915. Conference series Materials Research Society Symposia Start page 257 End page 263 Publisher Materials Research Society Place of publication Warrendale, Penn Summary A novel technique is here presented, based on inverse opal metal oxide structures for the production of high quality macro and meso-porous structures for gas sensing. Taking advantage of a sol-gel templated approach. different mixed semiconducting oxides with high surface area, commonly used in chemical sensing application, were synthesized. In this work we report the comparison between SnO2 and SnO2:Zn. As witnessed by Scanning and Transmission Electron Microscopy (SEM and TEM) analyses and by Powder x-ray Diffraction (PX RD), highly ordered meso-porous structures were formed with oxide crystalline size never exceeding 20 nm . The filled templates. in form of thick films, were bound to allumina substrate with Pt interdigitated contacts and Pt heater, through in situ calcination, in order to perform standard electrical characterization. Pollutant gases like CO and NO2 and methanol. as interfering gas, were used for the targeted electrical gas tests. All samples showed low detection limits towards both reducing and oxidizing species in low temperature measurements. Moreover, the addition of high molar percentages of Zn( II) affected the beha viour of electrical response improv ing the se lecti vity of the proposed system. ISBN 9781558998711 1558998713 ISSN 0272-9172 Language eng Field of Research 100708 Nanomaterials Socio Economic Objective 970110 Expanding Knowledge in Technology HERDC Research category E1.1 Full written paper - refereed Persistent URL http://hdl.handle.net/10536/DRO/DU:30022397 Document type: Conference Paper Collection: Centre for Material and Fibre Innovation   Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Mon, 18 Jan 2010, 13:25:11 EST Tue, 16 Mar 2010, 14:38:36 EST Mon, 29 Mar 2010, 14:12:08 EST Wed, 14 Mar 2012, 14:06:31 EST Fri, 16 Mar 2012, 17:37:34 EST Mon, 02 Sep 2013, 14:37:47 EST Mon, 02 Sep 2013, 14:43:43 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 499 Abstract Views, 104 File Downloads  -  Detailed Statistics Created: Mon, 18 Jan 2010, 13:25:11 EST

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