Figure 2

XRD and XPS patterns of GDL supports.

(a) XRD patterns of GDL supports before and after the ASP activation. (b) XPS survey, (c,d) N1s, (e,f) C1s, (g,h) O1s and (i,j) F1s spectra of the support GDL surfaces. (c,e,g,i) pristine GDL support and (d,f,h,j) the ASP activated GDL support.