Fig. 9

SEM images and photographs captured after each process: (a) SEM image of CNWs after growth, as illustrated in Fig. 5(a); (b) Photograph and SEM image of PtNP/CNWs after the deposition of PtNPs onto CNWs, as represented in Fig. 5(b); (c) Photograph and SEM images of PtNP/CNWs following the lift-off of both SOG and CNWs, as depicted in Fig. 5(c).