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. 2014 Nov 26;137(1):314–321. doi: 10.1021/ja510328m

Figure 2.

Figure 2

Top: Sulfur K-edge spectra of (A) the MoSx film as prepared, in the precatalytic and catalytic states, together with Mo3S4, MoS2 and MoS3 reference spectra, and (B) the MoSx film poised at 0.3 (black), 0.1 (blue), −0.1 (red), and −0.3 V (green) in nitric acid at pH = 2. Middle: Molybdenum L3-edge spectra of (C) the MoSx film as prepared, in the precatalytic and catalytic states, together with Mo3S4, MoS2, and MoS3 and (D) the MoSx film poised at 0.3 (black), 0.1 (blue), −0.1 (red), and −0.3 V (green) in nitric acid at pH = 2. Bottom: Molybdenum L2-edge spectra of (E) the MoSx film as prepared, in the precatalytic and catalytic states, together with Mo3S4, MoS2, and MoS3 and (F) the MoSx film poised at 0.3 (black), 0.1 (blue), −0.1 (red), and −0.3 V (green) in nitric acid at pH = 2.