CuO nano-structures were prepared in Rosmarinus Officinalis leaves extract medium via a green bio-chemical method and were used for the one-pot synthesis of dihydropyrano [3,2-c] chromene derivatives. This procedure is very simple and the products were synthesized in high to excellent yields.
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http://dx.doi.org/10.2174/1872210510999151126110657 | DOI Listing |
Langmuir
January 2024
Department of Physics, School of Physics and Astronomy, Yunnan University, Kunming 650504, China.
In this study, hollow and hierarchical CuO micro-nano cubes wrapped by reduced graphene oxide (H-CuO MNCs@rGO) were designed and successfully fabricated via a novel three-step wet-chemical method. Benefiting from its unique hollow and hierarchical micro-nano structures, H-CuO MNCs@rGO exhibited significantly enhanced electrochemical Na storage performance when utilized as anode material for sodium-ion batteries (SIBs). Specifically, H-CuO MNCs@rGO demonstrated a specific capacity of 380.
View Article and Find Full Text PDFNano Lett
October 2023
School of Physics and Technology, Center for Electron Microscopy, MOE Key Laboratory of Artificial Micro- and Nano-structures, and Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
CuO/C catalysts have been used in the selective catalytic reduction of NO because of the exceptional low-temperature denitration (de-NO) activity. A fundamental understanding of the reaction between CuO and C is critical for controlling the component of CuO/C and thus optimizing the catalytic performance. In this study, a transmission electron microscope equipped with an heating device was utilized to investigate the atomic-scale reaction between CuO and C.
View Article and Find Full Text PDFNat Commun
June 2021
School of Physics and Technology, Center for Electron Microscopy, MOE Key Laboratory of Artificial Micro- and Nano-structures, and Institute for Advanced Studies, Wuhan University, Wuhan, China.
From the mechanical perspectives, the influence of point defects is generally considered at high temperature, especially when the creep deformation dominates. Here, we show the stress-induced reversible oxygen vacancy migration in CuO nanowires at room temperature, causing the unanticipated anelastic deformation. The anelastic strain is associated with the nucleation of oxygen-deficient CuO phase, which gradually transforms back to CuO after stress releasing, leading to the gradual recovery of the nanowire shape.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2021
Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education and School of Physics and Technology, Wuhan University, Luojiashan Road, Wuhan 430072, China.
Photocatalytic hydrogen evolution is a promising" green chemistry" route driven by sunlight for the direct water splitting into value-added hydrogen energy. Herein, with the object of exploring the effect of CuO loading on WO photocatalytic activity, a 3D Urchin-like CuO modified WO (CuO/WO) microspheres with different CuO loadings were synthesized via thermochemical precipitation combined with solvent-thermal method. The obtained CuO/WO microspheres were analyzed by means of X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL), etc.
View Article and Find Full Text PDFJ Nanosci Nanotechnol
August 2019
Post Graduate Department of Chemistry, Radhabai Kale Mahila Mahavidyalaya, Ahmednagar 414001, India.
Synthesis of 4,4'-((phenyl)methylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) derivatives was successively carried out using Cu doped ZnO nanomaterials. The nanocrystalline Cu-ZnO was obtained by decomposing as-synthesized copper-zinc oxalate intermediate at 520 °C. The prepared Cu-ZnO nanostructured catalyst was characterized with FTIR, X-ray diffraction, field emission scanning electron microscope and electron diffraction techniques.
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