Figure 5

(a–c) Micrographs showing transverse sections of electro-spun (ASL-ESL) lignin fibres after carbonisation at 1000 °C, 1200 °C and 1500 °C respectively.

(a–c) Micrographs showing transverse sections of electro-spun (ASL-ESL) lignin fibres after carbonisation at 1000 °C, 1200 °C and 1500 °C respectively.