Fig. 2: TEM characterization of NAUP-PNC oxygen electrode. | Nature Communications

Fig. 2: TEM characterization of NAUP-PNC oxygen electrode.

From: Enhancing surface activity and durability in triple conducting electrode for protonic ceramic electrochemical cells

Fig. 2

a HRTEM image of NAUP-PNC nanoparticles. The inset contains magnified view of the marked region with a simulated atomic model of the PNC phase (orthorhombic perovskite structure, Pnma space group). b SAED pattern of NAUP-PNC nanoparticles. c HAADF image of NAUP-PNC nanoparticles; the representative areas are squared. d EDS elemental maps of the NAUP-PNC electrode confirm the presence of the PNC phase. From left to right, the selected area for EDS (orange rectangle in Fig. 2c) shows praseodymium as a green pattern, nickel as a yellow pattern, cobalt as an orange pattern, and oxygen as a red pattern, arranged in order. e EDS line scan (blue arrow) of a single NAUP-PNC electrode fiber. f–i Elemental information of line scan, oxygen-orange (f); praseodymium-blue (g); nickel-green (h) and cobalt-yellow (i).

Back to article page