Fig. 1
From: High-performance bifunctional porous non-noble metal phosphide catalyst for overall water splitting
Synthesis and microscopic characterization of as-prepared FeP/Ni2P hybrid. a Low-magnification SEM images of FeP/Ni2P nanoparticles supported on Ni foam. Scale bar, 5 μm. b High-magnification SEM images of FeP/Ni2P nanoparticles supported on Ni foam. Scale bar, 200 nm. c The SAED pattern taken from the FeP/Ni2P catalysts. Scale bar, 2 1/nm. d A typical HRTEM image taken from the FeP/Ni2P catalysts. Scale bar, 2 nm. e The TEM image and corresponding EDX elemental mapping. Scale bar, 100 nm. f XPS analysis. g A typical XRD pattern of the samples (we did not show the full intensity of the peaks from Ni so that the peaks from the catalysts can be better viewed)
