Figure 4

Identification of Glu stabilization effect on Pt NPs.

(a) TEM image of Pt/Glu. (b) Pt 4f XPS diagrams of Pt/Glu, Pt/NaCl, Pt/C and commercial Pt/C. (c) Area ratio derived from the curve fitting of Pt 4f XPS of Pt/Glu, Pt/NaCl, Pt/C and commercial Pt/C.