Novel route to synthesize CuO nanoplatelets

Zárate, R. A.; Hevia, Francisco.; Fuentes, S.; Fuenzalida, V.M.; Zúñiga, Alejandro

doi:10.1016/j.jssc.2007.01.040

Cited by 77 publications

(41 citation statements)

References 21 publications

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“…Peak at 529.7 eV is in agreement with O 2À binding with Cu, while peaks at 531.2 and 533.2 eV are attributed to oxygen adsorbed on the surface of CuO needle. These results indicate that the grown sample is composed of CuO [37]. Fig.…”

Section: Resultsmentioning

confidence: 62%

Structural and magnetic properties of CuO nanoneedles synthesized by hydrothermal method

Dar

Kim

et al. 2008

Applied Surface Science

199

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Section: Resultsmentioning

confidence: 62%

Structural and magnetic properties of CuO nanoneedles synthesized by hydrothermal method

Dar

Kim

et al. 2008

Applied Surface Science

199

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“…CuO are assignable to the monoclinic tenorite structure[30]. For the Co-Cu composite oxides with Co/Cu ratios of 4/1 and 2/1, only diffraction peaks ascribed to the spinel phase of Co 3 O 4 could be observed, but these diffraction peaks became significantly weaker and broader as compared with those of Co 3 O 4 .…”

mentioning

confidence: 94%

Cobalt and Copper Composite Oxides as Efficient Catalysts for Preferential Oxidation of CO in H2-Rich Stream

Liu

Zhang

et al. 2008

Catal Lett

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A series of Co-Cu composite oxides with different Co/Cu atomic ratios were prepared by a co-precipitation method. XRD, N 2 sorption, TEM, XPS, H 2 -TPR, CO-TPR, CO-TPD and O 2 -TPD were used to characterize the structure and redox properties of the composite oxides. Only spinel structure of Co 3 O 4 phase was confirmed for the Co-Cu composite oxides with Co/Cu ratios of 4/1 and 2/1, but the particle sizes of these composite oxides decreased evidently compared with Co 3 O 4 . These composite oxides could be reduced at lower temperatures than Co 3 O 4 by either H 2 or CO. CO and O 2 adsorption amounts over the composite oxides were significantly higher than those over Co 3 O 4 . These results indicated a strong interaction between cobalt and copper species in the composite samples, possibly suggesting the formation of Cu x Co 3-x O 4 solid solution. For the preferential oxidation of CO in a H 2 -rich stream, the Co-Cu composite oxides (Co/Cu = 4/1-1/1) showed distinctly higher catalytic activities than both Co 3 O 4 and CuO, and the formation of Cu x Co 3-x O 4 solid solution was proposed to contribute to the high catalytic activity of the composite catalysts. The Co-Cu composite oxide was found to exhibit higher catalytic activity than several other Co 3 O 4 -based binary oxides including Co-Ce, Co-Ni, Co-Fe and Co-Zn oxides.

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“…Some of the nanostructures of CuO that has been synthesized include nanorods, [ [15,16], nanowires [17], nanobelts, nanosheets [18], nanoplatelets [19] nanoneedles [20].…”

Section: Introductionmentioning

confidence: 99%

Annealing effect on the optical and solid state properties of cupric oxide thin films deposited using the Aqueous Chemical Growth (ACG) method

Mammah¹,

Opara²,

Omubo-Pepple³

et al. 2013

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Thin films of CuO having an average thickness of 720 nm were deposited on clean glass substrates using the Aqueous Chemical Growth (ACG) method with Cu(NO 3 ) 2 and C 6 H 12 N 4 as precursors and annealed at different temperatures in order to determine the effect of annealing temperature on their optical and solid state properties. The study was carried out using Rutherford Backscattering (RBS) spectroscopy for t thickness and chemical composition, X-Ray Diffraction (XRD) for crystallographic structure and a UV-VIS spectrophotometer for spectral analysis. The results indicate that the absorbance and absorption/extinction coefficient of the films vary inversely with annealing temperature while the transmittance, reflectance, direct band gap, real/imaginary dielectric constants and refractive index vary directly with annealing temperature. The results further indicate an improvement in crystallinity as annealing temperature increases. The as-deposited and annealed ACG CuO thin films were found to be suitable for use as window layer in solar cells among other electronic and optoelectronic applications.

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Novel route to synthesize CuO nanoplatelets

Cited by 77 publications

References 21 publications

Structural and magnetic properties of CuO nanoneedles synthesized by hydrothermal method

Structural and magnetic properties of CuO nanoneedles synthesized by hydrothermal method

Cobalt and Copper Composite Oxides as Efficient Catalysts for Preferential Oxidation of CO in H2-Rich Stream

Annealing effect on the optical and solid state properties of cupric oxide thin films deposited using the Aqueous Chemical Growth (ACG) method

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