Catalog | ACMA00030761 |
Description | The nanofiber can show peculiar shapes. Sometimes they can show noncrystalline order, assuming e.g. a pentagonal symmetry or a helicoidal (spiral) shape. Electrons zigzag along pentagonal tubes and spiral along helicoidal tubes. The lack of crystalline order is due to the fact that a nanofiber is periodic only in one dimension (along its axis). Hence it can assume any order in the other directions (in plane) if this is energetically favorable. Arrays of nanofiber / nanowhiskers are a new type of nanostructures that exhibit quasi-1D characteristics. Metallic nanofiber / nanowhiskers and multi-layered nanofiber / nanowhiskers have been successfully fabricated before. |
Application | There are many applications where nanowires may become important in electronic, opto-electronic and nanoelectromechanical devices, as additives in advanced composites, for metallic interconnects in nanoscale quantum devices, as field-emittors and as leads for biomolecular nanosensors. Also optical, sensing, solar cells, magnetic, and electronic device applications |
Material | Cadmium oxide |
Notes | Before using nanofibers, the user shall determine the suitability of the product for its intended use, and user assumes all risk and liability whatsoever in connection therewith. |
Packaging | Usually to customer specification |
Specification | Presently diameters nominally as small as 12 nanometers |
Kumar, Sundararajan Ashok, et al. Environmental Science and Pollution Research 30.55 (2023): 117390-117403.
Objective: Green route synthesized cadmium oxide (CdO) nanofibers and CdO/graphene nanosheet (GNS) nanocomposites were used for the removal of methylene blue (MB) dye and as electrode materials for supercapacitors.
Key Findings:
· Morphology & Structure: The morphology of the as-prepared CdO-based nanomaterials were determined to be nanofibers by FESEM, XRD analysis confirmed the cubic crystal structure of CdO. FTIR spectra of CdO and CdO/GNS revealed the presence of surface biomolecules and carbon functional groups, respectively.
· Optical Properties: Band gap energy of the as-prepared nanocomposites measured using UV-Vis spectroscopy were found to be suitable for photocatalytic activity.
· Photocatalytic Activity: CdO/GNS nanocomposites were able to remove 97% of MB in 120 minutes under UV light and were better in performance than pristine CdO nanofibers.
· Electrochemical Properties: Electrochemical measurements revealed that CdO/GNS showed excellent chemical stability as supercapacitor electrodes, with a specific capacitance of 231 F g-1 at 25 mV s-1, higher than undoped CdO.
Kaviyarasu, K., et al. Materials Letters 120 (2014): 243-245.
Aim: The purpose of the work is to obtain well-oriented, solvothermally synthesized cadmium oxide (CdO) nanofibers with a homogeneous morphology and study their optical and structural properties, focusing on photoluminescent performance and potential for use in visible optoelectronics.
Methods: A 1.0 M CdO-iodine solution was heated at 120 °C for 7 hours, and the color changes were used as an indicator of the ongoing reaction. The CdO nanofibers were then precipitated by ethanol and separated by centrifugation and subsequent washing.
Key Results:
· Morphology: The morphology of the nanofibers, examined by electron microscopy, is relatively uniform with a diameter of approximately 50 nm and the building blocks of the fibers are cube-shaped.
· Crystal phase: The μ-Raman spectrum indicated that the sample is cubic in structure of NaCl-type with first harmonic modes and a second-order mode at 303.5 cm-1 and 593.0 cm-1, respectively.
· Photoluminescence: CdO has a strong visible photoluminescence with tunable emission energies in the range of ~2.5 - 3.4 eV that can be effectively used in the photonic and optoelectronic industry.
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