Gas sensing properties of ordered mesoporous TiO2 film enhanced by thermal shock induced cracking

Tae Jung Ha; Min Hee Hong; Chang Sun Park; Hyung Ho Park

doi:10.1016/j.snb.2013.02.093

Gas sensing properties of ordered mesoporous TiO₂ film enhanced by thermal shock induced cracking

Tae Jung Ha, Min Hee Hong, Chang Sun Park, Hyung Ho Park

Department of Materials Science and Engineering

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

19 Citations (Scopus)

Abstract

Ordered mesoporous TiO₂ films with increased pore connectivity are introduced in this work. Crack generation was accomplished by thermal shock using rapid thermal annealing to obtain a connected pore structure. Due to the increased pore connectivity caused by crack generation, the specific surface area of mesoporous TiO₂ films increased by 2.6 times. As specific surface area increased, gas sensing properties of the ordered mesoporous TiO₂ film were enhanced, thus, ordered mesoporous TiO₂ films with increased pore connectivity are ideal candidates for gas sensor applications.

Original language	English
Pages (from-to)	874-879
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	181
DOIs	https://doi.org/10.1016/j.snb.2013.02.093
Publication status	Published - 2013

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (No. 2012R1A2A2A01011014 ).

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1016/j.snb.2013.02.093

Cite this

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title = "Gas sensing properties of ordered mesoporous TiO2 film enhanced by thermal shock induced cracking",

abstract = "Ordered mesoporous TiO2 films with increased pore connectivity are introduced in this work. Crack generation was accomplished by thermal shock using rapid thermal annealing to obtain a connected pore structure. Due to the increased pore connectivity caused by crack generation, the specific surface area of mesoporous TiO2 films increased by 2.6 times. As specific surface area increased, gas sensing properties of the ordered mesoporous TiO2 film were enhanced, thus, ordered mesoporous TiO2 films with increased pore connectivity are ideal candidates for gas sensor applications.",

author = "Ha, {Tae Jung} and Hong, {Min Hee} and Park, {Chang Sun} and Park, {Hyung Ho}",

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AU - Hong, Min Hee

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AU - Park, Hyung Ho

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