The Cellulose Nanofibers for Optoelectronic Conversion and Energy Storage
(a) TGA of original cellulose, TEMPO-oxidized cellulose with sodium carboxyl group, and TEMPO-oxidized cellulose film with sodium carboxyl group. (b) Digital image of photo paper, pulp paper, and nanopaper under the treatment of various temperatures. (c) SEM images of the surface of nanopaper when it is exposed to 150°C for different time. (d) Coefficient of thermal expansion versus Young’s modulus .