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. 2013 Mar 27;3:1559. doi: 10.1038/srep01559

Figure 3. In situ DRIFTS spectra of Cu/Ba/bauxite: (a) exposure to NO and O2 in Ar at 200°C for different time; (b) exposure to NO and O2 in Ar for 30 min at different temperatures; (c) exposure to NO, O2 and SO2 in Ar for 30 min at different temperatures.

Figure 3