Research Station on Material Science and Engineering for Postoral Fellows;
School of Materials Science and Engineering;
Harbin Institute of Technology;
Harbin 150001;
China;
Key Laboratory of Functional Polymer Materials;
School of Chemistry and Material Sciences;
Heilongjiang University;
Harbin;
150080;
China;
supercapacitor; melamine; carbon aerogels; nanocomposites; nitrogen;