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Issue 22, 2016
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Facile preparation of copper nitride powders and nanostructured films

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Abstract

The simple fluorinated precursor, copper(II) trifluoroacetate, Cu(CF3COO)2 can be effectively utilised in the synthesis of copper(I) nitride, Cu3N, powders and films by combinations of wet processing and gas–solid (ammonolysis) techniques. The resulting materials were characterized by powder X-ray diffraction (PXD), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), diffuse reflectance UV-visible spectroscopy (DRUV-Vis), Raman spectroscopy, infrared spectroscopy (IR), thermogravimetric-differential thermal analysis-mass spectrometry (TG-DTA-MS) and nitrogen adsorption (BET) analysis. Moreover, variable temperature IR (VT-IR) studies of the solid phase were performed in situ during ammonolysis. Single-phase Cu3N powders composed of sub-micron scale platelets can be produced over relatively short reaction times. Materials prepared in this way are stoichiometric narrow band gap semiconductors. The same trifluoroacetate precursor was used to prepare nanostructured nitride films by spin coating. The surface microstructure was investigated and evaluated relative to films deposited by dip coating and nebulisation using the soluble carboxylate precursor.

Graphical abstract: Facile preparation of copper nitride powders and nanostructured films

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The article was received on 01 Feb 2016, accepted on 25 Apr 2016 and first published on 26 Apr 2016


Article type: Paper
DOI: 10.1039/C6TC00493H
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J. Mater. Chem. C, 2016,4, 5031-5037
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    Facile preparation of copper nitride powders and nanostructured films

    R. Szczęsny, E. Szłyk, M. A. Wiśniewski, T. K. A. Hoang and D. H. Gregory, J. Mater. Chem. C, 2016, 4, 5031
    DOI: 10.1039/C6TC00493H

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