Comparative study of two different TiO2 film sensors on response to H2 under UV light and room temperature - Details

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Abstract：

An　anatase　TiO2　film　sensor　was　prepared　by　a　facile　in-situ　method　on　the　interdigitated　Au　electrode　deposited　on　the　alumina　substrate.　The　structure,　morphology　and　the　optical　properties　of　the　in-situ　TiO2　film　sensor　were　characterized　by　X-ray　diffraction,　Scanning　Electron　Microscopy,　and　UV-vis　diffuse　reflectance　spectra.　The　photo-assisted　gas　sensitivities　of　the　prepared　film　towards　H2　gas　were　evaluated　at　room　temperature　in　N2　and　synthetic　air　atmospheres.　As　compared　to　TiO2　film　sensor　prepared　by　drop-coating　method,　this　in-situ　TiO2　film　sensor　exhibited　a　more　compact　structure　composed　of　uniform　TiO2　microspheres　as　well　as　a　better　gas　sensitivity　towards　H2　under　UV　irradiation,　especially　in　synthetic　air.　The　photo-electrochemical　measurements　suggest　that　these　improvements　may　be　associated　with　the　efficient　charge　transfer　in　the　TiO2　interface　induced　by　the　TiO2microsphere　structure.　This　study　might　offer　a　feasible　approach　to　develop　photo-assisted　gas　sensors　at　ambient　temperature.　©　2016　by　the　authors;　licensee　MDPI,　Basel,　Switzerland.

Keyword：

Alumina Aluminum oxide Atmospheric temperature Charge transfer Chemical sensors Film preparation Gas detectors Gases Gas sensing electrodes Gold deposits Image enhancement Irradiation Morphology Optical properties Scanning electron microscopy Titanium dioxide

Community：

[ 1 ] [Peng, Xiaoying]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou; 350002, China
[ 2 ] [Peng, Xiaoying]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
[ 3 ] [Wang, Zhongming]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou; 350002, China
[ 4 ] [Wang, Zhongming]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
[ 5 ] [Huang, Pan]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
[ 6 ] [Chen, Xun]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou; 350002, China
[ 7 ] [Chen, Xun]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
[ 8 ] [Fu, Xianzhi]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou; 350002, China
[ 9 ] [Fu, Xianzhi]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
[ 10 ] [Dai, Wenxin]State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou; 350002, China
[ 11 ] [Dai, Wenxin]College of Chemistry, Fuzhou University, Fuzhou; 350108, China

Reprint 's Address：

[dai, wenxin]college of chemistry, fuzhou university, fuzhou; 350108, china;;[dai, wenxin]state key laboratory of photocatalysis on energy and environment, research institute of photocatalysis, fuzhou university, fuzhou; 350002, china

Email：

daiwenxin@fzu.edu.cn

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Source ：

Sensors (Switzerland)

ISSN： 1424-8220

Year： 2016

Issue： 8

Volume： 16

2 . 6 7 7

JCR@2016

3 . 0 3 1

JCR@2018

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 41

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

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