科研之友
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摘要
The long-range ordered cuprous oxide nanostructured superlattice (L alpha-Cu2O) was synthesized using sodium dodecyl sulfonate (SDS; C12H25SO3Na) as supermolecular template in waterethanol 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 L alpha-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 L alpha-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.
