Figure 3

SEM image of CMS-WBB (a), EDS layered image of CMS-WBB (b), element mapping of C (c), Cu (d), O (e), Si (f) and N (g) on CMS-WBB, EDS spectra of CMS-WBB (h).

SEM image of CMS-WBB (a), EDS layered image of CMS-WBB (b), element mapping of C (c), Cu (d), O (e), Si (f) and N (g) on CMS-WBB, EDS spectra of CMS-WBB (h).