1D CuO/ZnO nanocomposites were grown on Si(100) substrates by means of an original two-step synthetic strategy. ZnO nanorod (NR) arrays were initially deposited by plasma enhanced-chemical vapor deposition (PE-CVD) from an Ar-O-2 atmosphere. Subsequently, tailored amounts of CuO were dispersed over zinc oxide matrices by radio frequency (RF)-sputtering of Cu from Ar plasmas, followed by thermal treatment in air. A thorough characterization of the obtained systems was carried out by X-ray photoelectron and X-ray excited-Auger electron spectroscopies (XPS and XE-AES), glancing incidence X-ray diffraction (GIXRD), field emission-scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDXS), atomic force microscopy (AFM), transmission electron microscopy (TEM), electron diffraction (ED) and energy filtered-TEM (EF-TEM). Pure and highly oriented CuO/ZnO NR arrays, free from ternary Zn-Cu-O phases and characterized by a copper(II) oxide content controllable as a function of the adopted RF-power, were successfully obtained. Interestingly, the structural relationships between the two oxides at the CuO/ZnO interface were found to depend on the overall CuO loading. The obtained nanocomposites displayed promising photocatalytic performances in H-2 production by reforming of ethanol-water solutions under simulated solar illumination, paving the way to the sustainable conversion of solar light into chemical energy.
机构:
Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Shinde, Vaishali R.
Gujar, Tanaji P.
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机构:Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Gujar, Tanaji P.
Noda, Takeshi
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Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Noda, Takeshi
Fujita, Daisuke
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Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Fujita, Daisuke
Vinu, Ajayan
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机构:Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Vinu, Ajayan
Grandcolas, Mathieu
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Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Grandcolas, Mathieu
Ye, Jinhua
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Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Photocatalyt Mat Ctr, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
机构:
Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Shinde, Vaishali R.
Gujar, Tanaji P.
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h-index: 0
机构:Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Gujar, Tanaji P.
Noda, Takeshi
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机构:
Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Noda, Takeshi
Fujita, Daisuke
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机构:
Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Fujita, Daisuke
Vinu, Ajayan
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机构:Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Vinu, Ajayan
Grandcolas, Mathieu
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机构:
Natl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan
Grandcolas, Mathieu
Ye, Jinhua
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Photocatalyt Mat Ctr, Tsukuba, Ibaraki 3050047, JapanNatl Inst Mat Sci, Int Ctr Young Scientists, Tsukuba, Ibaraki 3050047, Japan