In situ environmental TEM observation of two-stage shrinking of Cu2O islands on Cu(100) during methanol reduction.


Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15216, USA. [Email] [Email]


The structural dynamics of Cu catalyst regeneration from Cu2O under methanol is poorly understood. In situ Environmental TEM on Cu(100)-supported Cu2O islands reveals a transition from anisotropic to isotropic shrinking during reduction. Two-stage reduction is statistically supported and explained by preferential methanol reactivity on Cu2O nano-islands with DFT simulations.

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