{
  "abstract": "Ammonia (NH3) volatilization is a major pathway of reactive nitrogen loss, making accurate and real-time NH3 monitoring essential for improving nitrogen-use efficiency and mitigating environmental impacts. Herein, a room-temperature chemiresistive NH3 sensor based on a PANI/SnS2 p–n heterojunction composite is developed for real-time ammonia monitoring. The composite was synthesized via in situ chemical oxidative polymerization and deposited onto flexible Au interdigital electrodes. Structural characterization confirms the successful integration of PANI and SnS2 and the formation of closely contacted heterojunction interfaces. The optimized composite exhibits a response of 959.7 % toward 100 ppm NH3 and a sensitivity of 9.85 % ppm−1 at room temperature. In addition, the sensor demonstrated stable sensing performance over a 10-day laboratory test, and excellent selectivity, with negligible responses to common interfering gases. The enhanced sensing performance was attributed to the synergistic effects of the PANI/SnS2 heterojunction and the NH3-induced deprotonation of PANI. Soil volatilization and paddy-field experiments further demonstrated the potential of the sensor for real-time NH3 monitoring under practical conditions.",
  "abstract_shown": true,
  "affiliations": [
    "Institute of Environmental Processes and Pollution Control, School of Environment and Ecology, Jiangnan University, Wuxi214122, China",
    "Department of Mechanical Engineering, LSU New Orleans, New Orleans, LA70148, USA",
    "Department of Civil Engineering, Varna Free University “Chernorizets Hrabar”, Varna9007, Bulgaria",
    "Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, School of Mechanical Engineering, Jiangnan University, Wuxi214122, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jia Zhemin"
    },
    {
      "affs": [
        0
      ],
      "name": "Wang Yuru"
    },
    {
      "affs": [
        0
      ],
      "name": "Wang Chen"
    },
    {
      "affs": [
        1
      ],
      "name": "Hui David"
    },
    {
      "affs": [
        2
      ],
      "name": "Petkova-Slipets Rositsa"
    },
    {
      "affs": [
        3
      ],
      "name": "Wang Zhenyu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/egrbfh6xkjbax.bib",
  "cited_by": 0,
  "doi": "10.1515/ntrev-2025-0395",
  "fulltext_url": "https://doi.org/10.1515/ntrev-2025-0395",
  "id": "egrbfh6xkjbax",
  "issns": [
    "2191-9097",
    "2191-9089"
  ],
  "landing_url": "https://doi.org/10.1515/ntrev-2025-0395",
  "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": [
    [
      "lcc",
      "QD450-801"
    ],
    [
      "lcc",
      "T"
    ],
    [
      "lcc",
      "TP1-1185"
    ],
    [
      "openalex",
      "2208|Gas Sensing Nanomaterials and Sensors"
    ]
  ],
  "openalex": "W7223390284",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": "De Gruyter",
  "ris": "https://research.draconitic.com/paper/egrbfh6xkjbax.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:47:24Z",
      "native_id": "fed0bfa341c04b4984a91eca02532e51",
      "source": "doaj",
      "url": "https://doi.org/10.1515/ntrev-2025-0395"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "lcc:QD450-801",
      "subfield": "physical"
    }
  ],
  "title": "Room-temperature PANI/SnS2 chemiresistive sensor for real-time ammonia volatilization monitoring",
  "title_text": "Room-temperature PANI/SnS2 chemiresistive sensor for real-time ammonia volatilization monitoring",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:47:24Z",
  "url": "https://research.draconitic.com/paper/egrbfh6xkjbax",
  "venue": "Nanotechnology Reviews",
  "versions": []
}