fig1

Figure 1. (A and B) TEM images of the initial MWCNTs and the purified MWCNTs composites. (C) Raman spectra of the raw MWCNTs and the purified MWCNTs composites at λ = 532 nm. (D and E) TEM images of the Cu/Cu_xO@MWCNTs nanocomposites. (F) HRTEM images of the Cu/Cu_xO@MWCNTs nanocomposites and the corresponding SAED pattern (insert). (G) TEM-EDX of C, Cu, O, Pd, P, Cl, and Sn elements for the Cu/Cu_xO@MWCNTs nanocomposites. (H) EDX spectra of the Cu/Cu_xO@MWCNTs nanocomposites.