Graphene oxide nanosheets functionalized protected amine for tuning of interlayer d -spacing with DFT studies: A versatile material design

Herein, we report the intercalation of t -butyl hydrazinecarboxylate on the surface of GO through the epoxide ring opening on the basal plane. Upon the intercalation, the interlayer d -spacing has increased from 0.78 to 1.21 nm and further treatment with acid, and the interlayer d -spacing was decreased from 1.21 to 0.94 nm, which was referred as Jacky-Lifting approach . DFT calculations confirm the intercalation with the energetically favorable profound interactions with GO. The as-prepared GO nanosheets were characterized by spectroscopic and microscopic techniques. This approach of tuning interlayer d -spacing between the GO nanosheets paves the way to stuff the biological sensor materials for stimuli-based biosensor applications. Graphical abstract