title: Phase transformations during HLnTiO4 (Ln=La, Nd) thermolysis and photocatalytic activity of obtained compounds
metadata.name: dc.contributor.author
metadata.value: Silyukov, Oleg I
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Abdulaeva, Liliia D
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Burovikhina, Alena A
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Rodionov, Ivan A
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Zvereva, Irina A
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-04-07T19:44:14Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-04-07T19:44:14Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2015
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: O.I. Silyukov, L.D. Abdulaeva, A.A. Burovikhina, I.A. Rodionov, I.A. Zvereva, J. Solid State Chem. 226 (2015) 101–106. http://dx.doi.org/10.1016/j.jssc.2015.02.008
metadata.lang: en_GB
metadata.name: dc.identifier.issn
metadata.value: 00224596
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/1952
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Layered HLnTiO4 (Ln=La, Nd) compounds belonging to Ruddlesden–Popper phases were found to form partially hydrated compounds Ln2Ti2O7·xH2O during thermal dehydration as well as defect oxides Ln2□Ti2O7 as final products. Further heating of metastable defect Ln2□Ti2O7 substances leads to the formation of pyrochlore-type oxides Ln2Ti2O7 (p), with subsequent transformation under higher temperatures to stable layered 110-type perovskites Ln2Ti2O7. The occurring structure transformations lead to an increase of photocatalytic activity in the order of HLnTiO4<Ln2Ti2O7·yH2O<Ln2□Ti2O7<Ln2Ti2O7 (p)<Ln2Ti2O7 in the reaction of hydrogen evolution from aqueous isopropanol solution.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: This research was supported by the Russian Foundation for Basic Research (Grant 15-03-05981) and Saint Petersburg State University (Grant 12.38.257.2014). Authors also are grateful to Saint Petersburg State University Research Park. TG and DSC study were carried out in Center of Thermal Analysis and Calorimetry, XRD study was carried out in Research Centre for X-ray Diffraction Studies, IR-study was carried out in Center for chemical analysis and materials research, SEM images were obtained in Interdisci- plinary Resource Center for Nanotechnology.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: Journal of Solid State Chemistry
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Layered perovskite-like oxides
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Solid state reactions
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Phase transitions
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Photocatalytic activity
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Phase transformations during HLnTiO4 (Ln=La, Nd) thermolysis and photocatalytic activity of obtained compounds
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Silyukov et al. - 2015 - Phase transformations during HLnTiO4 (Ln=La, Nd) thermolysis and photocatalytic activity of obtained compounds.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/1952/1/Silyukov%20et%20al.%20-%202015%20-%20Phase%20transformations%20during%20HLnTiO4%20%28Ln%3dLa%2c%20Nd%29%20thermolysis%20and%20photocatalytic%20activity%20of%20obtained%20compounds.pdf
resources.format: Adobe PDF
resources.description: Статья
resources.size: 2,23 MB