Synthesis of hierarchical mushroom-like cobalt nanostructures based on one-step galvanostatic electrochemical deposition

Hierarchical mushroom-like cobalt materials were synthesized by galvanostatic electroplating. The morphology of the product, which can evolve from cone-like to mushroom-like nanostructures, is controllable by changing the deposition parameters. The nanostructure is a single hexagonal close-packed crystal with a <100> preferential growth direction. The proposed growth mechanism is based on the metal ion deficient layer (MIDL) theory which explains both the time-dependent morphology evolution and the effects of the crystalline modifier C2H4(NH2)2. Depositions using several organic crystalline modifiers were compared; only C 2H4(NH2)2 yielded the mushroom-like structure. This journal is © the Partner Organisations 2014.

Duke Scholars

Author Haozhe Wang Electrical and Computer Engineering