Fig. 1: Microstructural analysis of the CoN@CNTs catalyst.
From: Direct insights into the role of epoxy groups on cobalt sites for acidic H2O2 production
a SEM images of CoN@CNTs. Inset is the high-resolution SEM image of a selected area of CoN@CNTs. b TEM image of CoN@CNTs showing a bamboo-like structure of the carbon nanotubes. c HAADF–STEM image and corresponding EDS maps of CoN@CNTs for O, N, and Co. d HAADF-STEM image of the CoN@CNTs showing many Co atoms (circled in red) well-dispersed in the carbon layers. e EELS analysis of selected area in d showing the signals of Co. f XPS elemental survey of CoN@CNTs.
