Fig. 2
From: Air-stable phosphorus-doped molybdenum nitride for enhanced electrocatalytic hydrogen evolution
Physical characterization of P–Mo–N. a XRD pattern of the Mo–N and P–Mo–N, the PDF number (25-1368) of standard Mo2N is shown. b SEM image of P–Mo–N sample, scale bar: 50 nm. c TEM image of P–Mo–N, the scale bar is 50 nm, the inset shows the corresponding EDS result with the crystal indices. d HRTEM image of P–Mo–N, the obvious grain-boundaries are marked by red dots, two interplanar spacing values of 0.24 and 0.21 nm are also shown, scale bar: 1 nm; The element mapping of P–Mo–N sample, e Mo element, f N element, g P element, and h the mixed result, scale bar: 50 nm
