Browsing Exact and Earth Sciences by Subject "Nitreto de tântalo"

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    • Effect of thermal calcinations on the charge transfer resistance of tantalum nitride nanotubes 

      Khan, Sherdil; Severo, Tiago Cassol; Santos, Marcos José Leite; Teixeira, Sergio Ribeiro (2016) [Journal article]
      Nanotubes of Ta3N5 were synthesized by thermal Nitridation of Ta2O5 nanotubes under ammonia gas environment. The effect of Nitridation temperature and time was evaluated. Electrochemical impedance spectroscopy was applied ...

    • Photoelectrochemical study of Ta3N5 nanotubes for water splitting 

      Khan, Sherdil; Santos, Marcos José Leite; Dupont, Jairton; Teixeira, Sergio Ribeiro (2014) [Journal article]
      Nanotubes (NTs) of Ta3N5 were synthesized by nitridation of Ta2O5 NTs. The samples were studied by scanning electron microscopy, UV-VIS spectrophotometry, x-ray diffraction and photoelectrochemical (PEC) measurements carried ...