Biobased N-Doped Primary and Secondary Char Electrodes for Energy Storage Application Using Pyrrole as the N Precursor

The synthesis of biobased N-doped carbon-based electrodes from the feedstocks sucrose and Miscanthus using pyrrole as the N precursor is reported. Apart from the biomasses, pyrrole plays a key factor in the material transformation. It has been investigated whether pyrrole is also suitable in conjunction with a biomass under subcritical water conditions. The N content increases with a higher mass ratio of pyrrole between 1.4 and 4.2%. The physical–chemical properties of the electrodes are analyzed, and the potential application in energy storage is further assessed.