INOR 335 |
| Morphological control of crystals provides a means of tailoring the interfacial arrangement of atoms and has a vital role in enhancing the desired reactivity of a material. In this presentation we demonstrate how two main processes that determine crystal shape (i.e., crystal habit and branching growth) can be independently regulated in the electrocrystallization of Cu2O. Crystal habit can be regulated by introducing additives that preferentially adsorb onto specific crystallographic planes. We will discuss the effect and efficiencies of various additives in stabilizing {100}, {111}, and {110} surfaces of Cu2O crystals. While crystal habit is controlled by the composition of the plating solution, the degree of branching can be simultaneously regulated by the overpotential and current density. Combining the ability to control habit and branching growth with the intrinsic advantages of electrodeposition, we demonstrate how numerous novel crystal architectures can be assembled by rationally designing growth conditions and a growth chronology. |
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Materials Synthesis
7:00 PM-10:00 PM, Sunday, March 25, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Sci-Mix
Division of Inorganic Chemistry |