1999
DOI: 10.1002/(sici)1097-4555(199905)30:5<413::aid-jrs387>3.0.co;2-n
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Raman spectra of CuO nanocrystals

Abstract: CuO nanoparticles were successfully prepared by a one-step solid-state reaction under ambient conditions. Three pellet samples with different grain sizes were obtained by annealing at high temperature. The room temperature Raman spectra of these samples show that as the grain size decreases, the Raman peaks shift to lower wavenumber and become broader owing to size effects. The dependences of the Raman spectra on the wavelength of the excitation laser and temperature were also investigated.

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Cited by 611 publications
(325 citation statements)
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“…The coexistence of Cu and Cu 2 O in the synthesized material was also confirmed by use of XRD. The peak at 933.8 eV is due to CuO, although it is slightly higher than the reported energy of CuO (933.7 eV) (Wagner et al, 1979), it agrees well with other values reported for CuO surface phase (Wagner et al, 1979;Espinós et al, 2002;Zhu et al, 2004;Wang et al, 2003Wang et al, 2002Xu et al, 1999;Hui et al, 2002;Brookshier et al, 1999;Fernando et al, 2002). The, three peaks of 530.2, 531.6, 533.6 eV observed in the O1s spectrum (Fig.…”
Section: Characterization and Properties Of Adsorbentssupporting
confidence: 89%
“…The coexistence of Cu and Cu 2 O in the synthesized material was also confirmed by use of XRD. The peak at 933.8 eV is due to CuO, although it is slightly higher than the reported energy of CuO (933.7 eV) (Wagner et al, 1979), it agrees well with other values reported for CuO surface phase (Wagner et al, 1979;Espinós et al, 2002;Zhu et al, 2004;Wang et al, 2003Wang et al, 2002Xu et al, 1999;Hui et al, 2002;Brookshier et al, 1999;Fernando et al, 2002). The, three peaks of 530.2, 531.6, 533.6 eV observed in the O1s spectrum (Fig.…”
Section: Characterization and Properties Of Adsorbentssupporting
confidence: 89%
“…42 If one changes the laser excitation, the Raman peaks of CuO nanocrystals shift. The peak at 293 cm -1 with 532 nm excitation shifts to 296 and 282 cm -1 with 633 and 785 nm excitations.…”
Section: Raman Spectra Of 4-mpy Surface-modified Cuo Nanocrystalsmentioning
confidence: 99%
“…No evidence of CuO separate phase could be found by Raman analysis. Because three active modes at 298, 345, and 632 cm −1 are predicted for CuO [49], the CuO presence should be evidenced by a band resulting from the overlapping of its most intense band (298 cm −1 ), and the one at about 270 cm −1 of the ZrO2 tetragonal phase. Figure 3 shows the most representative Raman spectra of NiZ system before and after catalytic investigation.…”
Section: Introductionmentioning
confidence: 99%