Filled and Hollow Carbon Nanofibers by Coaxial Electrospinning of Alcell Lignin without Binder Polymers

This work reports the formation of both solid and hollow lignin micro- and nanofibers, at room temperature and without polymer binders, by co-electrospinning. These fibers, after thermal stabilization, are carbonized to produce hollow and solid carbon nanofibers (see figure) with specific surface areas similar to values found for active carbon.