Fig. 1
From: Enhanced carbon dioxide electrolysis at redox manipulated interfaces
X-ray diffraction patterns of samples. a Oxidized samples of NiO/x%NiMn2O4 (x = 0, 5, 10, 15, 20). b Reduced samples of Ni/y%MnOx (y = 0, 4, 8, 11, 15). c Oxidized and d reduced samples CeO2 and Ce0.9(Cu1−xNix)0.1O2−δ (x = 0, 0.25, 0.5, 0.75, 1). e Oxidized and f reduced samples Nb2TiO7, NbTi0.5Ni0.5O4, NbTi0.4Cr0.1Ni0.5O3.95, and NbTi0.4Mn0.1Ni0.5O4
