Fig. 2: The composition and structure of the CoOxCly catalyst.
From: Self-adaptive amorphous CoOxCly electrocatalyst for sustainable chlorine evolution in acidic brine
a The XRF Co Kα and Cl Kα mapping of the CoOxCly film electrodeposited in the electrolyte containing 0.1 M Co2+ and 0.5 M Cl- at 1.67 V for 10 h. The scale bar is 1 mm. b The EDX mapping of the CoOxCly film after 40 h electrodeposition at 1.67 V. c The cross-section TEM images of the CoOxCly film after 40 h electrodeposition at 1.67 V. d The HRTEM images and corresponding SAED patterns (inset) of the CoOxCly film after 40 h electrodeposition at 1.67 V. e The Cl 2p X-ray photoelectron spectroscopy (XPS) spectrum of the CoOxCly film. This peak could be well fitted by 197.6 eV for Cl 2p3/2 and 199.4 eV for Cl 2p1/2, respectively41,42.
