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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

   
  Abstract  
  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.
     
  Keywords  
  In2O3/Pt nanofibers; Chlorobenzene; Gas sensors; Electrospinning  
     
   
   
   
   
     

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