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. Author manuscript; available in PMC: 2011 Oct 27.
Published in final edited form as: J Am Chem Soc. 2010 Oct 27;132(42):14736–14738. doi: 10.1021/ja106283u

Figure 3.

Figure 3

MS signal of 16O2, 16,18O2 and 18O2 as a function of temperature during O2-TPD (2°C/min in He) of activated Cu-ZSM-5 (Cu/Al=0.5, Si/Al=12). Note that the peak in the 16,18O2 desorption profile corresponds to loss of the 22,700 cm-1 absorption feature.

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