A Facile Surfactant Assistant Synthesis of Self‐Assembled Cuprous Oxide Nanostructured Superlattice
The long‐range ordered cuprous oxide nanostructured superlattice (
Lα‐Cu2O) was synthesized using sodium dodecyl sulfonate ( SDS; C12H25SO3Na) as supermolecular
template in water‐ethanol media via a facile reflux method. CuCl2, glucose and NaOH served as Cu source, reductant and precipitant, respectively. X‐ray diffraction analysis showed that Cu2O
is the sole inorganic phase in Lα‐Cu2O. Transmission electron microscopy further observed and proved this 2.7‐nm period of regular nanostructured superlattice arrays detected and calculated by small angle X‐ray diffraction (2.71 nm).
Field emission scanning electron microscopy exhibited that Lα‐Cu2O presents granular particles of around 700 nm. In contrast, the template free Cu2O ( TF‐Cu2O) presents no ordered
nanostructure and shows polyhedral morphology. The possible mechanism of SDS serving as soft template was proposed and discussed in thermodynamics.
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Document Type: Research Article
Publication date: August 1, 2011