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Sofol-ийн хийж байгаа зүйл бол хэрэглэгчдэд хэмнэлттэй, тохиромжтой үйлдвэрлэлийн шугамыг тохируулах, брэндийн үнэ цэнийг бий болгох явдал юм.
ZnO nanorod arrays were grown on ITO glass by a hydrothermal method. As shown in Fig. S2 in the ESI, † the color of the ZnO nanorod arrays on ITO glass changed from gray to black a er the cation ...
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Comprehensive analysis of structural and optical properties involved using various analytical techniques such as XRD, FT-IR, XPS, UV-DRS, PL, FE-SEM, EDAX, TEM, SAED, …
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We synthesized ZnO, CuO, Cu doped ZnO with 1, 2 and 3 wt %, and for Cu additions at 6, 8, 10, 15, 30 and 50 wt% this resulted in ZnO–CuO composites with different …
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Экзоген үйл явц - Download as a PDF or view online for free. Submit Search. Экзоген үйл явц. Apr 30, 2011 • Download as PPT, PDF • 1 like • 7,615 views. Tsedev Bat-erdene Follow. 1 of 90. Download now Downloaded 72 times. Recommended ...
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Carbon-coated ZnO/CuO nanoparticles anchored on reduced graphene oxide (ZnO/CuO/C/G) are constructed by using the redox reaction of elementary Cu in metal-organic framework-derived ZnO/Cu/C and ...
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ZnO, Raman spectrum (Fig. 1b) shows vibrational modes at 203, 329, 436, 579, 795, 908 and 1086 cm −1 . The peak at 329 cm −1 is assigned as E2 (high)-E2 (low) modes and the peak at 436 cm −1 ...
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Download scientific diagram | XRD of CuO nanoparticles from publication: Synthesis and optical characterization of copper oxide nanoparticles | Copper oxide (CuO) nanoparticles are synthesized by ...
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They observed that by inserting nanoparticle CuO/ZnO (Cu/ZnO = 7/3), photothermal conversion efficiencies in CuO nanofluid could be improved from 95% to 97.35% [30]. In Amjad et al. comparative ...
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CuO–ZnO nanocomposites (NCs) were synthesized using an aqueous extract of Verbascum sinaiticum Benth. (GH) plant. X-ray diffraction (XRD), spectroscopic, and microscopic methods were used to explore the crystallinity, optical properties, morphology, and other features of the CuO–ZnO samples. Furthermore, catalytic performances were investigated for …
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In this work, nanoparticles (NPs) of ZnO, ZnO with Cu incorporated at 2 and 30 wt%, and CuO were prepared by the hydrothermal method. X-ray diffraction pattern (DRX) analysis showed that ZnO with ...
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A series of CuO–ZnO–Al2O3/HZSM-5 hybrid catalysts with different Cu/Zn ratios and disparate Al2O3 doping were prepared and characterized by XRD, BET, H2-TPR, NH3-TPD and XPS techniques.
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Synthesis of ZnO and CuO nanoparticles via Sol gel method and Its Characterization by using XRD and FT-IR Analysis ... XRD result shows the particle size of CuO at highest peak 29.4014 ⁰ was 61. ...
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The volume phase fraction was estimated from the predominant diffraction peaks of the Cu 2 O and CuO components, using Eqs. (1) and (2).The phase fractions of the CuO and Cu 2 O phases were found ...
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Here, carboxyl functional mesoporous ZnO-SiO2/poly(methyl methacrylate-methacrylic acid) composite polymer particles, named as ZnO-SiO2/P(MMA-MAA), with different inorganic core against copolymer ...
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Figure 1 is the X-ray diffraction (XRD) pattern of ZnO-C nanospheres, MnO2 nanowires, and ZnO-C/MnO2 heterojunction. Determine the crystal form of powder material according to Joint Committee on ...
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Download scientific diagram | XRD spectra of a CuO (i), ZnO (ii), Cu/Cu2O (iii) and Cu/Cu2O/CuO/ZnO (iv) and b the as-prepared ternary nanocomposites at different calcination temperatures from ...
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1. The prominent peaks observed in 2θ = 32, 34.5, 37, 47.5, 57, 63 and 69° confirmed the crystalline structure and hexagonal phase of zinc oxide NPs (JCPDS card 01-080-0075).
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In our work ZnO nanoparticles were synthesized using chemical precipitation method. The ZnO nanoparticles were characterized using X-ray Diffraction (XRD) techniques by Scherrer formula …
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XRD using CuKα radiation line of 1.54 A˚wavelengthA˚wavelength in 2θ with range 10˚-80˚. The XRD patterns of the ZnO powder are shown in Figure (1), it is cleared that powder has a Hexagonal ...
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X-ray diffraction (XRD) showed hexagonal and monoclinic crystalline phases for pure ZnO and CuO, respectively. Electron microscope images showed two-dimensional (2D) …
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Abbreviations: XRD, X-ray diffraction; GK, gum karaya; CuO, copper oxide. from publication: Green synthesis of copper oxide nanoparticles using gum karaya as a biotemplate and their antibacterial ...
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Structure and morphology Figure 1 shows the X-ray diffraction (XRD) of ZnO and Ag/ZnO calcined at 450 °C. From the figure it can be observed that ZnO and Ag/ZnO are in wurtzite phase (WZ) of ZnO ...
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Хяналт нь байгууллагын зорилгыг жигд тасралтгүй хэрэгжүүлэхэд тус дөхөм үзүүлдэг үйл явц юм. Хяналтын үйл явцыг зөв зохион байгуулснаар аливаа нэг асуудал үүсэн томорч, шийдэгдэхгүй ...
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In this report, ZnO nanoparticles (NPs) was synthesized by chemical method using Zinc Acetate dehydrate [Zn (CH3COO)2.2H2O)] as precursors and Ethanol and distilled water as solvent. …
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The construction of n–p-type composites between n-type ZnO and p-type CuO, where electrons move from n-type ZnO to p-type CuO while the holes transfer conversely from CuO to ZnO until the system obtains equalization at the Fermi level, results in the formation of a hole depletion layer that promotes the quantity of the chemisorbed oxygen species.
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Hydrogen is the most significant renewable energy source because of its cleanness with zero emission, non-toxic nature, high efficiency compared to diesel or natural gas and reduce the emission of ...
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Copper sulfate was used as a precursor to prepare CuO nanoparticles in reverse micelles (o/w microemulsion). This is a technique which allows the preparation of ultrafine metal oxide nanoparticles ...
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Гэвч 2005 оны 1 дүгээр сарын 1-ний өдөр АНУ, Европын холбооны улсаас зарим улсуудын оёмол, сүлжмэл бүтээгдэхүүний экспортод тогтоож байсан квотыг бүрэн халах шилжилтийн үйл явц дуусгавар ...
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The GNR@ZnO and calcinated GNR@Z (200 °C) demonstrated two distinctive peaks at 29.6 and 56.8 (indicated by the red arr in the enlarged XRD patterns) owing to the absence of the long-range order ...
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The morphological properties and crystalline structure of the ZnO/CuO nanocomposites were studied using the X-ray diffraction method (XRD, Philips with Cu Kα radiation, λ = 1.54 Å) and a field emission scanning electron …
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