Fig. 2: Chemical structure of FBN and chitosan films, FBN-chitosan precursor and the prepared BNG heterostructured membranes.
From: Pyro-layered heterostructured nanosheet membrane for hydrogen separation
a Thermogravimetric analysis (TGA) of the FBN film, FBN-chitosan precursor and BNG membranes (FBN:chitosan = 7:10). b Raman spectra of BNG membranes with different ratios (FBN:chitosan = 7:25, 7:10, and 7:5). c, d XPS spectra of the chemical states of the elements (C 1 s and B 1 s) on the surface of the BNG membrane (FBN:chitosan = 7:10).
