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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 3.

Figure 3

(A) UV-vis-NIR absorption spectra of the of Cu-ZSM-5 samples (Si/Al=12) activated in O2 at 450°C, (B) amount of methanol extracted per gram of Cu-ZSM-5 sample, as a function of the Cu/Al ratio [20]). Reprinted with permission from ref.[20], © 2005 American Chemical Society.