| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1447082 | Acta Materialia | 2011 | 8 Pages |
Infrared (IR) irradiation controlled decoration of multiwalled carbon nanotubes (MWCNTs) with copper, cuprous oxide and cupric oxide nanocrystals was performed and investigated by various techniques. The decoration was achieved through a simple route by employing Cu(I) phenylacetylide (CPA) as the source of copper to impregnate the oxygen-functionalized MWCNTs (O-MWCNTs) during IR irradiation, and the composite was then calcined under different atmospheres and at suitable temperatures to obtain the controlled decoration of Cu/CuOx nanocrystals. The chemical functionalization of the MWCNTs followed by impregnation in the presence of IR radiation is the key step for the formation of homogeneously distributed CPA on the O-MWCNTs (CPA-MWCNTs). The controlled decoration of copper, cuprous oxide and cupric oxide nanocrystals in their pure phase was achieved by calcining the CPA-MWCNTs in hydrogen, nitrogen and air, respectively, at suitable temperatures.
Graphical abstractCopper, cuprous oxide and cupric oxide nanocrystals were homogeneously decorated on multiwalled carbon nanotubes using Cu (I) phenylacetylide as a precursor in a simple and efficient infrared irradiation method.Figure optionsDownload full-size imageDownload high-quality image (86 K)Download as PowerPoint slideHighlights► A simple and convenient route for homogeneous decoration of Cu/CuOx nanocrystals on MWCNTs. ► Infrared irradiation is used for the first time with Cu (I) phenylacetylide as copper source. ► Cu, Cu2O or CuO nanocrystals are selectively decorated on MWCNTs under different conditions. ► The size of as decorated Cu/CuOx nanocrystals on MWCNTs is in the range of 7–15 nm.
