Cadmium oxide nanofiber

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

Case Study

Green-Synthesized CdO Nanofibers and CdO/GNS Nanocomposites: Removal of MB Dye and Use in Supercapacitor as Electrode Materials

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.

Synthesis of Uniform CdO Nanofibers by Solvothermal Method and Study of Their Optical and Structural Properties

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.