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Structure and electrochromism of two-dimensional octahedral molecular sieve h’-WO3

Author

Listed:
  • Julie Besnardiere

    (Laboratoire Chimie de la Matière Condensée de Paris, LCMCP)

  • Binghua Ma

    (Laboratoire Chimie de la Matière Condensée de Paris, LCMCP)

  • Almudena Torres-Pardo

    (Universidad Complutense)

  • Gilles Wallez

    (Institut de Recherche de Chimie de Paris)

  • Houria Kabbour

    (UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide)

  • José M. González-Calbet

    (Universidad Complutense
    Universidad Complutense)

  • Hans Jürgen Bardeleben

    (Institut des Nanosciences de Paris, INSP)

  • Benoit Fleury

    (Institut Parisien de Chimie Moléculaire, IPCM)

  • Valérie Buissette

    (Centre de Recherches d’Aubervilliers)

  • Clément Sanchez

    (Laboratoire Chimie de la Matière Condensée de Paris, LCMCP)

  • Thierry Mercier

    (Centre de Recherches d’Aubervilliers)

  • Sophie Cassaignon

    (Laboratoire Chimie de la Matière Condensée de Paris, LCMCP)

  • David Portehault

    (Laboratoire Chimie de la Matière Condensée de Paris, LCMCP)

Abstract

Octahedral molecular sieves (OMS) are built of transition metal-oxygen octahedra that delimit sub-nanoscale cavities. Compared to other microporous solids, OMS exhibit larger versatility in properties, provided by various redox states and magnetic behaviors of transition metals. Hence, OMS offer opportunities in electrochemical energy harnessing devices, including batteries, electrochemical capacitors and electrochromic systems, provided two conditions are met: fast exchange of ions in the micropores and stability upon exchange. Here we unveil a novel OMS hexagonal polymorph of tungsten oxide called h’-WO3, built of (WO6)6 tunnel cavities. h’-WO3 is prepared by a one-step soft chemistry aqueous route leading to the hydrogen bronze h’-H0.07WO3. Gentle heating results in h’-WO3 with framework retention. The material exhibits an unusual combination of 1-dimensional crystal structure and 2-dimensional nanostructure that enhances and fastens proton (de)insertion for stable electrochromic devices. This discovery paves the way to a new family of mixed valence functional materials with tunable behaviors.

Suggested Citation

  • Julie Besnardiere & Binghua Ma & Almudena Torres-Pardo & Gilles Wallez & Houria Kabbour & José M. González-Calbet & Hans Jürgen Bardeleben & Benoit Fleury & Valérie Buissette & Clément Sanchez & Thier, 2019. "Structure and electrochromism of two-dimensional octahedral molecular sieve h’-WO3," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-018-07774-x
    DOI: 10.1038/s41467-018-07774-x
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    Cited by:

    1. Tiezhu Xu & Zhenming Xu & Tengyu Yao & Miaoran Zhang & Duo Chen & Xiaogang Zhang & Laifa Shen, 2023. "Discovery of fast and stable proton storage in bulk hexagonal molybdenum oxide," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    2. Yingying Fan & Yuheng Jiang & Haiting Lin & Jianan Li & Yuanjiang Xie & Anyi Chen & Siyang Li & Dongxue Han & Li Niu & Zhiyong Tang, 2024. "Insight into selectivity of photocatalytic methane oxidation to formaldehyde on tungsten trioxide," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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