Comparative Synthesis of Cu and Cu2O Nanoparticles from Different Copper Precursors in an Ionic Liquid or Propylene Carbonate. Issue 13 (7th December 2015)

• Record Type: Journal Article
• Authors: Marcos Esteban, Raquel; Meyer, Hajo; Kim, Jiyeon; Gemel, Christian; Fischer, Roland A.; Janiak, Christoph
• Other Names: Garcia Yann sponsoringEditor.; Su Bao‐Lian sponsoringEditor.
• Is Part Of: European journal of inorganic chemistry. Issue 13/14(2016)
• Page Start: 2106
• Page End: 2113
• Publication Date: 2015-12-07
• Subjects: Nanoparticles -- Ionic liquids -- Microwave chemistry -- Copper -- Copper oxides; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201500969
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Copper metal and copper(I) oxide (cuprite, cuprous oxide) nanoparticles (Cu‐NPs and Cu2 O‐NPs) were prepared from different readily available copper salts by means of microwave irradiation in propylene carbonate (PC) or in the ionic liquid (IL) 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([BMIm][BF4 ]) without addition of extra reducing agents. The nanostructures were studied by high‐angle annular dark field‐scanning transmission electron microscopy, TEM, SEM, and powder XRD. Star‐shaped agglomerated Cu‐NPs with about 45 nm diameter were formed from Cu(BF4 )2 in PC. Cu‐NPs with smaller size distributions of 3.1 ± 0.7 nm and 3.7 ± 1.4 nm were obtained when copper(II) bis[1‐(dimethylamino)propan‐2‐olate], Cu[OCH(Me)CH2 NMe2 ]2, was decomposed in PC and in [BMIm][BF4 ]. Small Cu‐NPs were also obtained from copper(II) acetylacetonate in [BMIm][BF4 ] with a diameter distribution of 3.3 ± 0.9 nm. Cubic Cu2 O nanocubes (Cu2 O‐NCs) of 43 ± 15 nm in size could be prepared by using Cu(OAc)2 · H2 O with [BMIm][BF4 ]. The size of the Cu2 O‐NCs increased on isolation from the neat IL by addition of acetonitrile, which gave NCs of 0.1–0.5 μm in size. Abstract : Copper metal nanoparticles and copper(I) oxide (cuprite) nanocubes can be easily and reproducibly synthesized under microwave irradiation in an ionic liquid (IL) or propylene carbonate (PC).