| 초록 |
we present a synthetic poly(amino acid), specifically polyaspartamide, with amino and hydroxyethyl pendants, polyAspAm(EDA/EA), which was mixed with borate and GO to fabricate ultralight and compressible N & B co-doped graphene aerogel. Because GO sheets possess many oxygen-containing groups, polyAspAm(EDA/EA) and borate can cross-link adjacent GO sheets and promote their self-assembly, forming stiff aerogel frameworks. After heating the freeze-dried graphene gel at 900 °C for 3 h under hydrogen atmosphere, the final N and B co-doped graphene aerogel was obtained. This novel aerogel with ultra-lightness (10-15 mg cm-3) and good mechanical property has potential as a hybrid electrode material with good stability and electrochemical performance. |
