The preparation and properties of the flexible titanium oxide/carbon nanofibers film

The titanium oxide - (TiOx (x = 1 similar to 2))/carbon (C) nanofibers (NFs) films were prepared by electrospinning, followed by pre- oxidation and carbonization, and the effects of pre- oxidation temperature on the - TiOx/C NFs films were investigated.The results showed that pre- oxidation temperature not only affected the composition of - TiOx - (TiO2 or - TiO2/TiO mixture) in CNFs, but also had great influence on forming aromatic ring structure of graphite layer.As a result, the mechanical properties and conductivity of the - TiOx/C NFs film were deeply influenced by preoxidation temperature.With the pre- oxidation temperature increasing, the tensile strength, elongation at break, and bending elastic modulus of - TiOx/C NFs films improved, reached the largest values, and then decreased.When preoxidation temperature was 240 degrees C, the tensile strength, elongation at break and bending elastic modulus had the largest values of 7.10MPa, 3.56%, and 9.0cN/cm(2), respectively. All the - TiOx/C NFs films exhibited well flexibility. Moreover, with the pre- oxidation temperature no more than 260 degrees C, the average square resistances of - TiOx/C NFs films were about 10O/sq.With the temperature being over 280 degrees C, the average square resistances of - TiOx/C NFs films greatly increased and reached about 22 Omega/sq. These flexible films can be applied in efficient catalyst flexible scaffolds and flexible electronic devices.