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Uniform, mm-sized spherical polyurea aerogel beads are produced for the first time. Scale-up is possible via the dripping method. Following properties are achieved (also determined by the nanostructure).
- 2-4 mm in diameter, narrow size distributions (full width at half maximum: 0.3-0.4 mm)
- Low density (0.16 g/cc)
- High porosity (>87% v/v)
- High surface area (200 m2/g)
Precursors for carbon aerogels