Large surface area biphase titania for chemical sensing
Vardan GalstyanSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyElisabetta CominiSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyC. BarattoSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyAndrea PonzoniSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyMatteo FerroniSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyNicola PoliSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyElza BontempiINSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Enginering, University of Brescia, Via Branze 28, 25133 Brescia, ItalyMariangela BrisottoINSTM and Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Enginering, University of Brescia, Via Branze 28, 25133 Brescia, ItalyG. FagliaSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, ItalyGiorgio SberveglieriSENSOR Lab, Department of Information Engineering, University of Brescia and CNR-INO, Via Valotti 9, 25133 Brescia, Italy
2014en
ABI
Аннотация
In this work we report about the synthesis and gas sensing properties of large surface area and stable biphase titania nanotubes. The nanosized tubular structures have been obtained by means of electrochemical anodization of thin Nb-Ti metallic films. Crystallization was accomplished by thermal annealing, to obtain biphase titania. The morphological analysis shows that the obtained structures are well-ordered and highly aligned titania nanotubes. Investigations of the structures' gas sensing properties show that they have high and reversible response towards H-2, CO, acetone and ethanol over a wide range of the operating temperatures. (C) 2014 Elsevier B.V. All rights reserved.
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