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. 2015 Oct 5;5:14173. doi: 10.1038/srep14173

Figure 2.

Figure 2

(A) XPS spectrum of Pd/G in Pd 3d region; (B) XPS spectrum of Pd/G, Pd/NG, PdSn/G and PdSn/NG in Pd 3d region; (C) XPS spectra of PdSn/G in Sn3d region; (D) XPS spectrum of PdSn/G and PdSn/NG in Sn3d region.