Figure 2. Photographs of the coaxial electrospraying processes.

a) the arrangement of the apparatus used in this work (inset: a photograph of the collector when an excessive core fluid flow rate was used); b) the connection of the spinneret with the power supply; c) a typical coaxial process under an applied voltage of 20 kV, with shell and core flow rates of 1.0 and 0.7 mL h⁻¹respectively; d) the compound Taylor cone.