Preparation and characterization of nanosized titania sensing film

M. Ferroni; M. C. Carotta; V. Guidi; G. Martinelli; F. Ronconi; M. Sacerdoti; E. Traversa

doi:10.1016/S0925-4005(01)00688-8

Preparation and characterization of nanosized titania sensing film

M. Ferroni^*, M. C. Carotta, V. Guidi, G. Martinelli, F. Ronconi, M. Sacerdoti, E. Traversa

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

77 Scopus citations

Abstract

Thick films based on nanosized titania powders have been prepared and characterized. Addition of suitable dopant affected film evolution upon annealing as both anatase-rutile phase transition and grain growth are inhibited. Ta and Nb addition to the TiO₂ powder proved effective for stabilization of the nanophase, as the average grain size was reduced from 110 to 35 and 45nm, respectively. Electrical measurements indicated selectivity enhancement towards CO and required film preparation to stabilize the film's grain size below 50nm.

Original language	English (US)
Pages (from-to)	163-166
Number of pages	4
Journal	Sensors and Actuators, B: Chemical
Volume	77
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-4005(01)00688-8
State	Published - Jun 15 2001
Externally published	Yes

Keywords

Differential thermal analysis
Electron microscopy
Gas sensor
Thick film
TiO

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/S0925-4005(01)00688-8

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AU - Ferroni, M.

AU - Carotta, M. C.

AU - Guidi, V.

AU - Martinelli, G.

AU - Ronconi, F.

AU - Sacerdoti, M.

AU - Traversa, E.

PY - 2001/6/15

Y1 - 2001/6/15

N2 - Thick films based on nanosized titania powders have been prepared and characterized. Addition of suitable dopant affected film evolution upon annealing as both anatase-rutile phase transition and grain growth are inhibited. Ta and Nb addition to the TiO2 powder proved effective for stabilization of the nanophase, as the average grain size was reduced from 110 to 35 and 45nm, respectively. Electrical measurements indicated selectivity enhancement towards CO and required film preparation to stabilize the film's grain size below 50nm.

AB - Thick films based on nanosized titania powders have been prepared and characterized. Addition of suitable dopant affected film evolution upon annealing as both anatase-rutile phase transition and grain growth are inhibited. Ta and Nb addition to the TiO2 powder proved effective for stabilization of the nanophase, as the average grain size was reduced from 110 to 35 and 45nm, respectively. Electrical measurements indicated selectivity enhancement towards CO and required film preparation to stabilize the film's grain size below 50nm.

KW - Differential thermal analysis

KW - Electron microscopy

KW - Gas sensor

KW - Thick film

KW - TiO

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JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

IS - 1-2

ER -

Preparation and characterization of nanosized titania sensing film

Abstract

Keywords

ASJC Scopus subject areas

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