Intercalated water drives anomalous thermal expansion in the tetragonal zircon structured bismuth vanadate BiVO4 photocatalyst

Simple item page
dc.contributor.authorMullens, BGen_AU
dc.contributor.authorMarlton, FPen_AU
dc.contributor.authorNicholas, MKen_AU
dc.contributor.authorPermana, AJen_AU
dc.contributor.authorBrand, HEAen_AU
dc.contributor.authorMaynard‐Casely, HEen_AU
dc.contributor.authorChater, PAen_AU
dc.contributor.authorKennedy, BJen_AU
dc.date.accessioned2025-10-03T04:19:32Zen_AU
dc.date.available2025-10-03T04:19:32Zen_AU
dc.date.issued2024-07-15en_AU
dc.date.statistics2025-07-01en_AU
dc.description.abstractThe thermal transformation of the tetragonal‐zircon (tz‐) to tetragonal‐scheelite (ts‐)BiVO4was studied byin situsynchrotron X‐ray diffraction, thermogravimetric analysis, and Fourier‐transformed infrared spectroscopy. Upon heating, the tetragonal zircon polymorph of BiVO4(tz‐BiVO4) transitioned to thets‐polymorph between 693–773 K. Above 773 K, single phasets‐BiVO4was observed before transitioning to the monoclinic fergusonite (mf‐) polymorph upon cooling. An anomaly in thermal expansion was observed between 400–500 K, associated with the loss of intercalated H2O/NH4+from the coprecipitation procedure. Heatingtz‐BiVO4resulted in contraction of the V−O bond distance and VO4polyhedra volume, ascribed to rotation of the tetrahedra groups. 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 thetz‐BiVO4structure were unsuccessful, suggesting they play a role in stabilizing thetz‐polymorph. The local structure of bothmf‐BiVO4 andtz‐BiVO4 were investigated by X‐ray pair distribution function analysis, revealing local distortions. © 2024 The Authors. Chemistry - An Asian Journal published by Wiley-VCH GmbH.en_AU
dc.description.sponsorshipBJK acknowledges the support of the Australian Research Council for this work that was facilitated by access to Sydney Analytical, a core research facility at the University of Sydney. BGM and MKN acknowledge the Australian Institute for Nuclear Science and Engineering for a scholarship and thank Professor Max Avdeev, as well as Drs Sam Duyker, Majharul Haque Khan, and Michelle Wood for their technical assistance. Part of this work was undertaken at the Powder Diffraction beamline (M18437) at the Australian Synchrotron, at the Echidna and Wombat (P13946) instruments at the Australian Centre for Neutron Scattering, and at Beamline I15-1 at Diamond Light Source (cy30086). Open Access publishing facilitated by The University of Sydney, as part of the Wiley - The University of Sydney agreement via the Council of Australian University Librarians. Open Access CC-BY-NC-NDen_AU
dc.format.mediumPrint-Electronicen_AU
dc.identifier.articlenumbere202400408en_AU
dc.identifier.citationMullens, B. G., Marlton, F. P., Nicholas, M. K., Permana, A. J., Brand, H. E. A., Maynard-Casely, H. E., Chater, P. A., & Kennedy, B. J. (2024). Intercalated water drives anomalous thermal expansion in the tetragonal zircon structured bismuth vanadate BiVO4 photocatalyst. Chemistry – An Asian Journal, 19(14), e202400408. doi:10.1002/asia.202400408en_AU
dc.identifier.issn1861-4728en_AU
dc.identifier.issn1861-471Xen_AU
dc.identifier.issue14en_AU
dc.identifier.journaltitleChemistry - An Asian Journalen_AU
dc.identifier.urihttps://doi.org/10.1002/asia.202400408en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16594en_AU
dc.identifier.volume19en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.subjectWateren_AU
dc.subjectZirconen_AU
dc.subjectBismuthen_AU
dc.subjectPhotocatalysisen_AU
dc.subjectSynchrotronsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectThermal expansionen_AU
dc.subjectHeatingen_AU
dc.subjectDielectric propertiesen_AU
dc.titleIntercalated water drives anomalous thermal expansion in the tetragonal zircon structured bismuth vanadate BiVO4 photocatalysten_AU
dc.typeJournal Articleen_AU
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Chemistry An Asian Journal - 2024 - Mullens - Intercalated Water Drives Anomalous Thermal Expansion in the Tetragonal.pdf
Size:
1.28 MB
Format:
Adobe Portable Document Format
Description:
Download
Thumbnail Image
Name:
asia202400408-sup-0001-misc_information.pdf
Size:
1.45 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.66 KB
Format:
Plain Text
Description:
Download
Collections
Journal Articles