{
  "abstract": "Bi-anionic K(SiH3)(1-x)(BH4)(x) compounds were synthesized for the first time by ball-milling from mixtures of KBH4 and KSiH3, followed by annealing at 200 degrees C under H-2. A full solid-solution following Vegard's law was found in the binary KSiH3-KBH4 phase diagram with all compounds crystallizing in the cubic structure with the Fm (3) over barm space group. In-depth MAS-NMR spectroscopy characterization studies were carried out, confirming undoubtedly that the two types of anions coexist in the same phase. Interestingly, the progressive introduction of [BH4](-) in the KSiH3 compound led to an evolution from the very fast orientationally diffusive rotation of [SiH3]- units to a more strongly restricted motion. Upon thermal treatment, the K(SiH3)(1-x)(BH4)(x) compounds desorbed only hydrogen atoms from the [SiH3](-) anion around 180 degrees C, which limits their potential use for hydrogen storage. Further studies on the combination of the [SiH3](-) anion with other hydrogen-containing polyanions could allow the design of new complex hydrides for hydrogen storage.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "name": "Alexandre Bernard"
    },
    {
      "name": "Hanyu Hu"
    },
    {
      "name": "Matthias Jollain"
    },
    {
      "name": "Thibault Charpentier"
    },
    {
      "name": "Fermin Cuevas"
    },
    {
      "name": "Romain Moury"
    },
    {
      "name": "Raphaël Janot"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/01y8ra34neg5d.bib",
  "cited_by": 0,
  "doi": "10.1039/d6ta01955b",
  "fulltext_url": null,
  "id": "01y8ra34neg5d",
  "issns": [
    "2050-7488",
    "2050-7496"
  ],
  "landing_url": "https://hal.science/hal-05679675v1",
  "language": "en",
  "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": [
    [
      "hal",
      "0.chim"
    ],
    [
      "openalex",
      "2505|Hydrogen Storage and Materials"
    ]
  ],
  "openalex": "W7161644584",
  "pdf_url": "https://hal.science/hal-05679675/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-05-19",
  "publisher": "Royal Society of Chemistry",
  "ris": "https://research.draconitic.com/paper/01y8ra34neg5d.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:55Z",
      "native_id": "hal-05679675",
      "source": "hal",
      "url": "https://hal.science/hal-05679675v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Hydrogen Storage and Materials",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Investigation of the dynamics in KSiH 3 and new bi-anionic K(SiH 3 ) 1− x (BH 4 ) x complex hydrides by MAS-NMR spectroscopy",
  "title_text": "Investigation of the dynamics in KSiH 3 and new bi-anionic K(SiH 3 ) 1− x (BH 4 ) x complex hydrides by MAS-NMR spectroscopy",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:55Z",
  "url": "https://research.draconitic.com/paper/01y8ra34neg5d",
  "venue": "Journal of Materials Chemistry A",
  "versions": []
}