MnO_x-CeO_x Nanoparticles Supported on Graphene Aerogel for Selective Catalytic Reduction of Nitric Oxides

Table 3

Relative composition of different state of carbon, manganese, and oxygen in GA-Mn and GA-MnCe catalysts based on XPS analyses.

Sample	Mn (%)			O (%)
	Mn^2+	Mn^3+	Mn^4+	Olatt	Oads	OC
GA-Mn5	53	35	12	36	36	27
GA-Mn10	46	36	17	44	36	20
GA-Mn15	48	35	17	45	34	20
GA-Mn20	48	34	18	43	34	23
GA-MnCe41	48	35	17	30	40	30
GA-MnCe21	46	34	19	28	41	31