{
  "abstract": "Ag2O-loaded Co3O4 composites (Ag2O/Co3O4) were prepared by the sol–gel auto-combustion method. Their morphology, microstructure, and textural properties were characterized by scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) analysis. The composites were evaluated as conductometric sensors for hydrogen (H2). The Ag2O/Co3O4−0.5 sensor showed an enhanced response to H2 over the investigated concentration range of 2000–10,000 ppm at an optimal operating temperature of 125 °C compared with pure Co3O4. The electrocatalytic activity of the composites was also investigated after spray-coating them onto screen-printed carbon electrodes (SPCEs). Cyclic voltammetry (CV) showed an enhanced response to uric acid for the Ag2O/Co3O4−1.0/SPCE compared with Co3O4/SPCE, with a sensitivity of 2.6 μA μM−1 cm−2, satisfactory reproducibility and stability, and a limit of detection (LoD) of 147 nM. These findings suggest that Ag2O/Co3O4 composites are promising materials for both gas and electrochemical sensing.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Engineering, University of Messina, Contrada Di Dio, 1, 98166 Messina, Italy",
    "Department of Physics, Air University, Pakistan Air Force (PAF Complex), E-9, Islamabad 44000, Pakistan",
    "Institute of Advanced Technologies for Energy “Nicola Giordano”, 98126 Messina, Italy",
    "Research Department, Universidad Technologica ECOTEC, Km. 13.5 Samborondón, Samborondón EC092302, Ecuador",
    "Physics Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia",
    "Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Madiha Khan",
      "orcid": "0000-0003-1550-0887"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Khouloud Abid",
      "orcid": "0000-0002-0066-8663"
    },
    {
      "affs": [
        3
      ],
      "name": "Viviana Bressi",
      "orcid": "0000-0003-1551-359X"
    },
    {
      "affs": [
        4,
        5
      ],
      "name": "Ahtisham Anjum",
      "orcid": "0009-0006-4755-9348"
    },
    {
      "affs": [
        0
      ],
      "name": "Claudia Espro",
      "orcid": "0000-0003-4081-1716"
    },
    {
      "affs": [
        0
      ],
      "name": "Giovanni Neri",
      "orcid": "0009-0006-8178-6982"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e8pmq4dkd8b6n.bib",
  "cited_by": 0,
  "doi": "10.3390/molecules31203592",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13707425/?tool=EBI",
  "id": "e8pmq4dkd8b6n",
  "issns": [
    "1420-3049"
  ],
  "landing_url": "https://www.mdpi.com/1420-3049/31/20/3592",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2208|Gas Sensing Nanomaterials and Sensors"
    ]
  ],
  "openalex": "W7221121956",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13707425/pdf/?tool=EBI",
  "pmcid": "PMC13707425",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/e8pmq4dkd8b6n.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:42Z",
      "native_id": "10.3390/molecules31203592",
      "source": "crossref",
      "url": "https://www.mdpi.com/1420-3049/31/20/3592"
    },
    {
      "first_seen": "2026-10-30T12:21:40Z",
      "native_id": "PMC:PMC13707425",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13707425"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:1420-3049",
      "subfield": "general"
    }
  ],
  "title": "Ag2O Loading-Dependent Interfacial Properties of Ag2O/Co3O4 Composites for Gas-Phase and Electrochemical Sensing",
  "title_text": "Ag2O Loading-Dependent Interfacial Properties of Ag2O/Co3O4 Composites for Gas-Phase and Electrochemical Sensing",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:21:40Z",
  "url": "https://research.draconitic.com/paper/e8pmq4dkd8b6n",
  "venue": "Molecules",
  "versions": []
}