{
  "abstract": "Alpha manganese dioxide (α-MnO2) has shown promising applications in energy storage, electrocatalysis, ion adsorption/separation due to its unique tunnel structure. In the preparation of α-MnO2, the potassium ion template is important for inducing the formation of the tunnels, but it leaves a large amount of potassium ions inside the final α-MnO2 tunnel because of the strong interaction between potassium ion and the inner wall of MnO2 tunnels. The potassium ion not only occupies and wastes the space of the tunnel, but also hinders the transport of the ions in the tunnels. Here, with the assistance of iron, indium is introduced into α-MnO2. The ICP-MS results confirmed that only 0.31% of In ions is doped in α-MnO2 without Fe and the content of In is significantly increased to 0.81% when Fe is added as an auxiliary species. Theoretical calculation reveals the binding energy between Fe-In co-doped α-MnO2 and potassium ions is significantly decreased. Moreover, the conductivity is increased from 0.177 µS cm-1 to 1.55 µS cm-1. Based on these improvements, the FeInMnO2 cathode was fabricated and presented excellent charge storage performance in zinc ion battery.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Science and Technology, Yunnan Agricultural University Kunming 650201 China junjiehe@ynau.edu.cn lijing69@ynau.edu.cn.",
    "Department of Applied Biology and Chemical Technology, Research Institute for Smart Energy, The Hong Kong Polytechnic University Hung Hom Hong Kong China wai-yeung.wong@polyu.edu.hk.",
    "Spallation Neutron Source Science Center, Institute of High Energy Physics, Chinese Academy of Sciences Dongguan 523803 China."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Hongmei Zhao",
      "orcid": "0000-0003-0649-4972"
    },
    {
      "affs": [
        0
      ],
      "name": "Song Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Jing Wang"
    },
    {
      "affs": [
        1
      ],
      "name": "Wai-Yeung Wong",
      "orcid": "0000-0002-9949-7525"
    },
    {
      "affs": [
        2
      ],
      "name": "Pengfei Liu"
    },
    {
      "affs": [
        0
      ],
      "name": "Jing Li"
    },
    {
      "affs": [
        0
      ],
      "name": "Junjie He",
      "orcid": "0000-0001-7164-8216"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/edqs7r0x2h1nv.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ra07481b",
  "fulltext_url": "https://europepmc.org/articles/PMC13741153",
  "id": "edqs7r0x2h1nv",
  "issns": [
    "2046-2069"
  ],
  "landing_url": "https://europepmc.org/article/MED/42997250",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2208|Aqueous and Flow Batteries"
    ]
  ],
  "openalex": "W7225430453",
  "pdf_url": "https://europepmc.org/articles/PMC13741153?pdf=render",
  "pmcid": "PMC13741153",
  "pmid": "42997250",
  "published": "2026-11-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/edqs7r0x2h1nv.ris",
  "sources": [
    {
      "first_seen": "2026-11-09T15:20:34Z",
      "native_id": "MED:42997250",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42997250"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2046-2069",
      "subfield": "general"
    }
  ],
  "title": "β-FeOOH mediated heavy indium doping to release the tunnel space in α-MnO₂.",
  "title_text": "β-FeOOH mediated heavy indium doping to release the tunnel space in α-MnO₂.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T15:20:34Z",
  "url": "https://research.draconitic.com/paper/edqs7r0x2h1nv",
  "venue": "RSC advances",
  "versions": []
}