Atmospheric pressure plasma assisted calcination of organometallic fibers

• Plasma assisted calcination of Ce(NO3)3/PVP composite fibers was investigated.
• Special type of dielectric barrier discharge at atmospheric pressure was used.
• Significant removal of base polymer and high porosity of fibers were obtained.
• Plasma treatment was performed at room temperature with short exposure time.

Plasma assisted calcination of composite submicron fibers (Ce(NO3)3/polyvinylpyrrolidone) as a novel method for inorganic submicron fibers preparation was studied. Special type of dielectric barrier discharge, so called Diffuse Coplanar Surface Barrier Discharge (DCSBD) was used for the plasma treatment of composite fibers at atmospheric pressure in ambient air for the purpose of oxidation and removing of organic base polymer by the active species produced in plasma. High decrease of C/Ce ratio and formation of porosity on fibers surface were observed after plasma calcination at exposure time in the order of minutes. Due to the low temperature approach and short treatment time, plasma assisted calcination is a suitable and perspective alternative to the conventional high-temperature calcination.

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