Research / 2020 / Article / Fig 3

Research Article

Wavelength-Dependent Solar N2 Fixation into Ammonia and Nitrate in Pure Water

Figure 3

Analysis of surface defects in the as-synthesized and annealed W18O49 nanowires for 30 min at 300°C. (a) The surface of the W18O49 nanowires; the marked dash line is the polycrystalline and amorphous regions. (b) The surface of the annealed W18O49 nanowires. (c) EELS spectra of W18O49 nanowires. (d) High-resolution XPS W 4f of the original and annealed W18O49 nanowires. (e) The EPR spectra of the original and annealed W18O49 nanowires. (f) N2-TPD profiles of the original and annealed W18O49 nanowires. (g) The PL spectra of the original and annealed W18O49 nanowires.