{
  "abstract": "Nitrogen-functionalized graphene nanoplatelets (N-GNPs) were synthesized by a low-temperature dopamine/HCl-assisted microwave method using 1–5% nominal N precursor concentrations to investigate concentration-dependent structural evolution. The materials were characterized by SEM, TEM, EDX, XRD, FTIR, Raman, XPS, BET analysis, and electrical measurements. SEM revealed thin, wrinkled multilayer graphene sheets suitable for N functionalization. XRD confirmed preservation of the graphitic framework, while the interlayer spacing changed non-monotonically from 0.33724 nm (pure) to 0.33924 nm (1%) and 0.33576 nm (5%), reflecting competition between N-induced expansion and π–π restacking. FTIR confirmed the formation of C–N/C\n\nCreated by potrace 1.16, written by Peter Selinger 2001-2019\n\nN and N–H functional groups. Raman analysis showed maximum defect generation for the 2% sample, where the ID/IG ratio increased from 0.243 to 0.492, and the apparent graphitic domain size decreased from 79.1 to 39.1 nm, while I2D/IG < 1 confirmed preservation of the multilayer structure. XPS N 1s spectra revealed two components at binding energy ∼399.6 and ∼401.5 eV, attributed to pyrrolic/amine-type and graphitic N or/and/or protonated amine species, respectively, supporting N modification of the GNP surface. BET analysis showed the highest specific surface area (45.6 m2 g−1) for the GNP-N 2% sample. Electrical measurements revealed a non-linear dependence on N content, with N-GNPs 2% showing the highest conductivity among the functionalized samples (72.73 S cm−1), although remaining below pure GNPs (88.50 S cm−1). Combined with its maximum BET surface area, this composition (2%) provides the most favorable balance among the measured surface, structural, and electrical properties within the N-functionalized series.",
  "abstract_shown": true,
  "affiliations": [
    "Faculty of Physics, Chemical Physics of Nanomaterials, Baku State University Zahid Khalilov 33 Baku AZ1148 Azerbaijan",
    "Nanoresearch Laboratory, Center of Excellence, Baku State University Zahid Khalilov 33 Baku AZ1148 Azerbaijan",
    "Faculty of Physics, Physics of Semiconductor, Baku State University Zahid Khalilov 33 Baku AZ1148 Azerbaijan",
    "Advanced Material Science R&D Center, Baku State University Zahid Khalilov 33 Baku AZ1148 Azerbaijan",
    "NanoBioMedical Centre, Adam Mickiewicz University Wszechnicy Piastowskiej 3 Poznań 61-614 Poland",
    "Department of Physics, University of Calabria Via P. Bucci, Cubo 33C I-87036 Rende Italy",
    "Department of Applied and Environmental Chemistry, University of Szeged Rerrich B. 1 H-6720 Szeged Hungary",
    "Qi S.r.l. Via Monte d'Oro, 2/A 00071 Pomezia (RM) Italy"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 12,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Rashida Huseynzade"
    },
    {
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        1
      ],
      "name": "Mustafa Muradov"
    },
    {
      "affs": [
        0
      ],
      "name": "Sevinj Hamidova",
      "orcid": "0009-0000-8433-6414"
    },
    {
      "affs": [
        2
      ],
      "name": "Ali Guseinov"
    },
    {
      "affs": [
        3
      ],
      "name": "Khatira Mehtiyeva"
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    {
      "affs": [
        4
      ],
      "name": "Mariya V. Dobrotvorska"
    },
    {
      "affs": [
        4
      ],
      "name": "Mikołaj Lewandowski",
      "orcid": "0000-0002-1480-8516"
    },
    {
      "affs": [
        5
      ],
      "name": "Alfonso Policicchio"
    },
    {
      "affs": [
        5
      ],
      "name": "Lorenzo Caputi"
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    {
      "affs": [
        6
      ],
      "name": "Ákos Kukovecz",
      "orcid": "0000-0003-0716-9557"
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    {
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        7
      ],
      "name": "Stefano Bellucci",
      "orcid": "0000-0003-0326-6368"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Lala Gahramanli",
      "orcid": "0009-0006-0273-4202"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1z2wnxbvm9a6p.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra08002b",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13730393/?tool=EBI",
  "id": "1z2wnxbvm9a6p",
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    "2046-2069"
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  "landing_url": "https://europepmc.org/article/PMC/PMC13730393",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
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  "native_subjects": [
    [
      "heading",
      "Chemistry"
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      "2505|Graphene research and applications"
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  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13730393/pdf/?tool=EBI",
  "pmcid": "PMC13730393",
  "pmid": "42979579",
  "published": "2026-11-03",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/1z2wnxbvm9a6p.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:20:45Z",
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  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Graphene research and applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Concentration-dependent nitrogen functionalization of graphene nanoplatelets: structural, surface, and electrical properties",
  "title_text": "Concentration-dependent nitrogen functionalization of graphene nanoplatelets: structural, surface, and electrical properties",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:22:57Z",
  "url": "https://research.draconitic.com/paper/1z2wnxbvm9a6p",
  "venue": "RSC advances",
  "versions": []
}