Preparation of Macroporous Conductive Carbon Aerogels from Pyrolysis of Isocyanate-Crosslinked Resorcinol Formaldehyde Aerogels

摘要

Carbon aerogels combine typical aerogel properties such as high surface area and low density with electrical conductivity. They are prepared by pyrolysis under N2 or Ar at 600-2100 °C of resorcinol formaldehyde (RF) aerogels, which in turn are prepared via aqueous sol-gel chemistry. Carbon aerogels are considered for numerous applications such as separation media in HPLC, as supercapacitors, as materials for hydrogen storage, as non-reflective materials, and as anodes in lithium-ion batteries.