Heavy Metal Detection: Facet-Dependent Stripping Behavior of Cu₂O Microcrystals Toward Lead Ions: A Rational Design for the Determination of Lead Ions (Small 21/2015)

Well-defined Cu2O microcrystals with cubic, octahedral, and rhombic dodecahedral structures are developed for the electrochemical determination of Pb(II). X. Zheng, X.-J. Huang, S.-H. Yu, and co-workers reveal that Cu2O with (111) facets exhibits a larger adsorption capacity and more adsorption energy than that of (100) and (110) facets, which leads to different electrochemical behaviors. On page 2493, the experimental and theoretical results provide a scientific understanding of how the different stripping behaviors are closely related to the facet-dependent properties of microcrystals.