Naslov
Formation and characterization of ribbon-like RuO2/Ru fibers

Autori
Ristić, Mira ; Marciuš, Marijan ; Petrović, Željka ; Ivanda, Mile ; Musić, Svetozar

Izvornik
Materials letters (0167-577X) 156 (2015); 142-145

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
RuO2/Ru; Electrospinning; FE SEM; XRD; FT-IR; Raman

Sažetak
Experimental conditions for the formation of RuO2/Ru fibers by electrospinning were investigated. Samples were characterized by the FE SEM, XRD, FT-IR and Raman techniques. Round fibers were produced by electrospinning a viscous polyvinylpyrrolidone (PVP)–C2H5OH–H2O solution, whereas with the addition of RuNO(NO3)3, ribbon-like fibers were produced. Heating the ribbon-like fibers of PVP+RuNO(NO3)3 at 400 °C for 1 h yielded a RuO2/Ru composite with the preserved morphology of the precursor. The surface of the ribbon-like RuO2/Ru fibers showed a porous nano/microstructure. PVP+RuNO(NO3)3 foils, produced by freeze-drying the corresponding viscous solution, did not yield ribbon-like fibers upon heating at 400 °C for 1 h. This suggests that the formation of a ribbon-like morphology is the cumulative effect of solvent evaporation during the electrospinning of a viscous solution and the interaction of PVP with RuNO(NO3)3.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA