Fig. 2: Structural characterizations of reduced Ni/ZrO2 catalyst.
From: A membrane Sabatier system for water recovery and rocket propellant production
a–c SEM, TEM, and HRTEM images of reduced Ni/ZrO2. d–h HAADF image and corresponding elemental mapping images of reduced Ni/ZrO2. i X-ray diffraction pattern of reduced Ni/ZrO2. j Ni K-edge XANES spectra (normalized) of reduced Ni/ZrO2 and reference materials. k First derivatives of XANES spectra of reduced Ni/ZrO2 and reference materials.
