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  Journal of Nanoscience Letters 2014, 4: 11
  Research Article
Pt-decorated In2O3 nanofibers: Electrospinning preparation and enhanced gas sensing performance to chlorobenzene
  Yingju Fana,b, Jinhua Zhanb  
a Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
b Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Department of Chemistry, Shandong University, Jinan 250100, Shandong, P. R. China

  Pt nanopaticles were deposited onto electrospun In2O3 nanofibers via a solution approach. The products were characterized by X-ray powder diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and HRTEM in detail. The gas sensing properties of the as-prepared In2O3/Pt nanofibers were investigated. The presence of Pt nanoparticles is significantly enhancing the sensitivity about two times and decreasing response time from 45 s to 14 s toward toxic chlorobenzene vapor. The enhanced sensor performances are ascribed to the unique catalytic and electron sink properties of metallic Pt. The excellent sensing performances make the In2O3/Pt a promising candidate for applications in chlorobenzene detection.
  In2O3/Pt nanofibers; Chlorobenzene; Gas sensors; Electrospinning  

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