{
  "abstract": "In this work, we employed an easy hydrothermal method to prepare CuO and ZnO, as well as the prepared composite nanostructured electrodes of CuO@ZnO for supercapacitor applications. The systematic electrochemical performance evaluation of the prepared materials was conducted by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). CuO@ZnO nanocomposite reflected the best charge storing behavior with a specific capacitance of 513 F/g, followed by pristine CuO (190 F/g) and ZnO (416 F/g). The composite also demonstrated 25.67 Wh/kg and 400 W/kg for energy density and power density, respectively, suggesting improved electrochemical performance. Besides, the areal and volumetric capacitances were 0.77 F/cm2 and 4.81 F/cm3, respectively, supported by the structural integrity and enhancement in electroactive materials utilization of the electrode material. Kinetic analysis showed that b values of the samples had mixed capacitive/diffusion-controlled charge storage, while higher diffusion coefficients and standard rate constants were apparent for ion transport or redox kinetics. EIS results showed a 2.14 Ω solution resistance, indicative of a decreased electrical resistivity. An asymmetric supercapacitor device fabricated by CuO@ZnO as the positive electrode and activated carbon (AC) as the negative electrode provided the specific capacitance of 48.57 F/g, energy density of 15.17 Wh/kg, and power density of 535 W/kg. After 10,000 cycles, the capacitance of the device was 76%, indicating good long-term stability.",
  "abstract_shown": true,
  "affiliations": [
    "School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea",
    "Department of Energy Material Science, Konkuk University, Chungju 27478, Republic of Korea"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Manesh A. Yewale",
      "orcid": "0000-0002-9422-8131"
    },
    {
      "affs": [
        1
      ],
      "name": "Santosh V. Mohite",
      "orcid": "0000-0003-1552-0079"
    },
    {
      "affs": [
        0
      ],
      "name": "S. Otmani",
      "orcid": "0000-0002-8798-9418"
    },
    {
      "affs": [
        0
      ],
      "name": "Annu",
      "orcid": "0000-0002-1644-2706"
    },
    {
      "affs": [
        0
      ],
      "name": "D. K Shin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/97f1pcy6e8xz2.bib",
  "cited_by": 7,
  "doi": "10.3390/ma19122460",
  "fulltext_url": null,
  "id": "97f1pcy6e8xz2",
  "issns": [
    "1996-1944"
  ],
  "landing_url": "https://doi.org/10.3390/ma19122460",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2504|Supercapacitor Materials and Fabrication"
    ]
  ],
  "openalex": "W7163900255",
  "pdf_url": null,
  "pmcid": "PMC13301693",
  "pmid": "42355042",
  "published": "2026-06-09",
  "publisher": "Multidisciplinary Digital Publishing Institute",
  "ris": "https://research.draconitic.com/paper/97f1pcy6e8xz2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:27:00Z",
      "native_id": "W7163900255",
      "source": "openalex",
      "url": "https://doi.org/10.3390/ma19122460"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Supercapacitor Materials and Fabrication",
      "subfield": "materials-polymers"
    }
  ],
  "title": "CuO@ZnO Nanocomposites with Improved Redox Behavior for High-Performance Supercapacitors",
  "title_text": "CuO@ZnO Nanocomposites with Improved Redox Behavior for High-Performance Supercapacitors",
  "type": "peer-reviewed",
  "updated_at": "2026-11-08T13:20:57Z",
  "url": "https://research.draconitic.com/paper/97f1pcy6e8xz2",
  "venue": "Materials",
  "versions": []
}