Abstract
Synthesis Ni-doped CuO nanorods via Successive Ionic Layer Deposition method and their capacitive performance
Highlights
As is known, the key role of increase the effectiveness of energy storage devices consist is to create new electrode materials with high energy density and long cycle life [1, 2]
Comparison of research results, conducted via XRD, XPS and FTIR methods, allows us to conclude: obtained nanolayers consist of copper oxide, doped nickel atoms, which are likely to be included in the crystal structure CuO
High cycling stability can be explained by the feature morphology of ultrathin nanocrystals of CuO which provide fast diffusion of ions on the electrode surface and while not being destroyed in charge-discharge process. We believe that these electrochemical capacity characteristics for electrodes of alkaline battery and pseudocapacitor based on Ni-doped CuO nanorods, synthesized via the Successive Ionic Layer Deposition (SILD) method, can be improved using a new scheme of their synthesis, including nanocomposite with carbon materials (CNT, graphene), the formation of which has been obtained after a new sequence of reagent treatment
Summary
The key role of increase the effectiveness of energy storage devices consist is to create new electrode materials with high energy density and long cycle life [1, 2]. Copper oxide nanoparticles have been studied as electroactive materials for energy storage devices, as this is one of the oxides with high conductivity and unique morphology [8,9,10,11] In those papers, methods of chemical and eletrochemical deposition from solutions have been used for the synthesis of such nanoparticles. It is worth noticing that previously CuO nanolayers on the metal surface have been obtained via the SILD method ( called SILAR [12]) to form effective electrodes for supercapacitors. The obtained nanolayers consist of CuO, including nickel atoms, with nanorods morphology, oriented mainly perpendicular to the substrate surface We describe their properties as electroactive materials for the electrode of alkaline batteries and pseudocapacitors
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