Fig. 3From: Lewis Basicity of Nitrogen-Doped Graphite Observed by CO2 Chemisorption a O 1s XAS spectra of N-HOPG after CO2 adsorption. b IRAS spectrum of N-HOPG with 5000 L CO2 adsorption. c N 1s XAS spectra of N-HOPG before CO2 adsorptionBack to article page