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. Author manuscript; available in PMC: 2013 Mar 11.
Published in final edited form as: J Catal. 2011 Nov 14;284(2):157–164. doi: 10.1016/j.jcat.2011.10.009

Figure 6.

Figure 6

UV-vis absorption spectra of a prereduced Cu-ZSM-5 (in He at 450 °C) during (A) O2 treatment at RT (10 s time interval between spectra in the first 2 min, then every 50 s for 10 min) and (B) subsequent heating from 25 to 375 °C in He atmosphere (heating rate 2°C min−1; temperature interval between spectra is 25 °C) [93]. Reprinted with permission from ref [93], © 2011 American Chemical Society.