Fig. 3: Structural and compositional characterizations of ultrathin PtNiMoAu tetrametallic NWs. | Nature Communications

Fig. 3: Structural and compositional characterizations of ultrathin PtNiMoAu tetrametallic NWs.

From: Identifying the distinct roles of dual dopants in stabilizing the platinum-nickel nanowire catalyst for durable fuel cell

Fig. 3

a Low-magnification TEM image. b Low-magnification STEM image. c Histogram of diameter and length distributions. d Atomically resolved HAADF-STEM image. The inset shows the corresponding FFT pattern. e STEM-EDS elemental mapping profiles. f EDS line-scanning profiles. g High-resolution XPS spectra of Pt 4 f for PtNi NWs and PtNiMoAu NWs. h Pt L3-edge XANES spectra and i the Fourier transforms of EXAFS spectra for different samples.

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