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Attard et al. first reported a method for the N‐doping of Starbon in 2018 [12] by using chitosan (a natural N‐containing polysaccharide) or ammonia as nitrogen sources. Three methods were described. Route A involved the gelation of chitosan and alginic acid together in the formation of Starbon. Routes B and C involved injecting ammonia into the Starbon at the aerogel stage and into the final product, respectively, where ammonia was adsorbed onto the surface of the material. These N‐doped materials are collectively referred to as N‐Starbon.

Another study used the impregnation of Starbon with monoethanolamine [22]. This involved mixing Starbon derived from both corn and potato starch with a known amount of amine in a solution of ethanol and water. The product was subsequently dried at 105 °C.