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Chemobrionic Fabrication of Hierarchical Self-Assembling Nanostructures of Copper Oxide and Hydroxide

AuthorsEscamilla-Roa, E. ; Cartwright, Julyan H. E. ; Sainz-Díaz, C. Ignacio
Issue Date2-Aug-2019
PublisherJohn Wiley & Sons
CitationChemSystemsChem 1: e1900011 (2019)
AbstractCopper oxide nanostructures have great potential use in a plethora of nanotechnology applications including nanoelectronics, photovoltaics, sensors, electrochemistry, and pharmacology. In the present work we show how hierarchically nanostructured copper oxide and hydroxide may be prepared through self-assembly from CuSO4 salt and silicate solutions using the chemobrionic growth process of a chemical garden. Procedures were explored using the cupric salt in either solid (pellet and seed growth methods) or liquid phase (fluid injection techniques). Self-assembling nanostructures were characterized by means of environmental scanning electron microscopy (ESEM) with energy-dispersive X-ray spectroscopy (EDX) analysis, micro-Raman spectroscopy and X-ray diffraction. Our results show the formation of crystalline aggregates of copper oxide and hydroxide in complex hierarchical nanostructured forms including fans, flowers, petals, skeins, lentils, and sheaves. Analytical methods corroborate that these nanostructures may be selected in shape and chemical composition with the reaction conditions.
Publisher version (URL)http://dx.doi.org/10.1002/syst.201900011
Identifiersdoi: 10.1002/syst.201900011
issn: 2570-4206
Appears in Collections:(IACT) Artículos
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