Investigation of Photoelectrochemical Parameters of Electrospun TiO₂ Nanofiber Electrode

Abstract:

This work reports the fabrication and photoelectrochemical response of titanium dioxide (TiO₂) nanofiber photoelectrode prepared by an electrospinning technique. Transmission electron microscopy (TEM) images reveal that the electropun nanofibers are composed of TiO₂ nanoparticles with the average diameter size of 25 nm. The scanning electron microscopy (SEM) image of the photoelectrode confirms the existence of TiO₂ nanofiber networks on Ti/Si substrate after the electrode preparation using a doctor-blade technique. The photoelectrochemical performance of TiO₂ nanofiber electrode is investigated in comparison with that of TiO₂ (Aeroxide P25) nanoparticle electrode. When the TiO₂ electrodes are subjected to light illumination at 100 mW/cm², the maximum photoconversion efficiency (PCE) of 0.95% is obtained at the TiO₂ nanofiber electrode while reduced PCE of 0.75% is obtained at the TiO₂ nanoparticle electrode.

• Periodical: Advanced Materials Research (Volumes 931-932)
• Pages: 266-270
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.931-932.266
• Online since: May 2014
• Authors: Tienthong Yuangkaew, Chotiros Prasansaeng, Papot Jaroenapibal, Napat Triroj*
• Keywords: Electrochemical Response, Electro-Spinning, Nanofiber, Photoelectrodes, Titanium Dioxide

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