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Title: Synthesis of Mesoporous Functional Hematite Nanofibrous Photoanodes by Electrospinning
Journal: Polymers for Advanced Technologies
Author: 1. Nikoo Saveh-Shemshaki, Masoud Latifi, 2. Roohollah Bagherzadeh, 3. Mahdi Malekshahi Byranvand, 4. Naimeh Naseri, 5. Ali Dabirian
Year: 2016
Address: 1. Textile Engineering Department, Textile Research and Excellence Centers, Amirkabir University of Technology, Tehran, Iran 2. Advanced Textile Materials and Technology Research Institute (ATMT), Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran 3. School of Chemistry, College of Science, University of Tehran, Tehran, Iran 4. Physics Department, Sharif University of Technology, Tehran, Iran 5. Photovoltaics and Thin Film Electronics Laboratory, École Polytechnique Fédérale de Lausanne (EPFL), Neuchatel, Switzerland
Abstract: Iron(III) oxide (hematite, Fe2O3) nanofibers, as visible light-induced photoanode for water oxidation reaction of a water splitting process, were fabricated through electrospinning method followed by calcination treatment. The prepared samples were characterized with scanning electron microscopy, and three-electrode galvanostat/potentiostat for evaluating their photoelectrochemical (PEC) properties. The diameter of the as-spun fibers is about 300 nm, and calcinated fibers have diameter less than 110nm with mesoporous structure. Optimized multilayered electrospun α- Fe2O3 nanostructure mats showed photocurrent density of 0.53 mA/cm2 under dark and visible illumination conditions at voltage 1.23 V and constant intensity (900mW/cm2). This photovoltaic performance of nanostructure mats makes it suitable choice for using in the PEC water splitting application as an efficient photoanode. This method, if combined with appropriate flexible conductive substrate, has the potential for producing flexible hematite solar fuel generators.
Keywords: nanofiber; electrospinning; hematite; PEC
Application: Nanocomposite
Product Model 1: Electroris
Product Model 2:
URL: http://onlinelibrary.wiley.com/doi/10.1002/pat.3647/full#="http://onlinelibrary.wiley.com" & "/doi/10.1002/pat.3647/full"#