“… 26 Pure CF showed XRD peaks at 2θ = 18.4, 30.3, 35.6, 37.4, 43.3, 53.7, 57.2, and 62.7°, which arises due to the presence of the (111), (220), (311), (222), (400), (422), (511), and (440) crystallographic planes of CF with a cubic crystal system [JCPDS Card no: 22-1086] ( Figure S1b ). 27 In the case of pure graphene (Gr), the diffraction peaks appeared at 2θ = 25.4 and 43.3°, which correspond to the (002) and (100) planes of graphene [JCPDS Card no: 01-0646] ( Figure S1d ). The XRD patterns of PA–CF nanocomposites display all of the characteristic peaks of both PA and CF and as a representative, the XRD pattern of 60PA-40CF is displayed in Figure S1c .…”