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  1. Article ; Online: Structural Properties of Some Vacancy-Ordered Platinum Halide Perovskites.

    Bennett, Caleb J / Brand, Helen E A / Yuen, Alexander K L / Nicholas, Maria K / Kennedy, Brendan J

    Inorganic chemistry

    2024  Volume 63, Issue 10, Page(s) 4681–4690

    Abstract: The structural changes that accompany the dehydration of ... ...

    Abstract The structural changes that accompany the dehydration of Na
    Language English
    Publishing date 2024-02-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c04288
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Intercalated Water Drives Anomalous Thermal Expansion in the Tetragonal Zircon Structured Bismuth Vanadate BiVO4 Photocatalyst.

    Mullens, Bryce G / Marlton, Frederick P / Nicholas, Maria K / Permana, Ahmadi J / Brand, Helen E A / Maynard-Casely, Helen E / Chater, Philip A / Kennedy, Brendan J

    Chemistry, an Asian journal

    2024  , Page(s) e202400408

    Abstract: The thermal transformation of zircon to scheelite in BiVO4 was studied by in-situ Synchrotron X-ray diffraction and TGA/FTIR analysis. Upon heating, the tetragonal zircon polymorph of BiVO4 (tz-BiVO4) transitioned to the tetragonal scheelite (ts-) ... ...

    Abstract The thermal transformation of zircon to scheelite in BiVO4 was studied by in-situ Synchrotron X-ray diffraction and TGA/FTIR analysis. Upon heating, the tetragonal zircon polymorph of BiVO4 (tz-BiVO4) transitioned to the tetragonal scheelite (ts-)polymorph between 693-773 K, then to monoclinic fergusonite (mf) polymorph upon cooling. An anomaly in thermal expansion was observed between 400-500 K, associated with loss of H2O/NH4+. Heating tz-BiVO4 resulted in contraction of the V-O bond distance and VO4 polyhedra volume due to rotation of the VO4. Attempts to study this by neutron diffraction failed due to the large incoherent scatter from the hydrogenous species. Efforts to remove these species while maintaining the tz-BiVO4 structure were unsuccessful, suggesting they play a role in stabilizing the zircon polymorph. The local structure of both mf-BiVO4 and tz-BiVO4 were investigated by X-ray Pair Distribution Function analysis.
    Language English
    Publishing date 2024-05-07
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2233006-9
    ISSN 1861-471X ; 1861-4728
    ISSN (online) 1861-471X
    ISSN 1861-4728
    DOI 10.1002/asia.202400408
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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