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Polymorphism regulation and morphology characterization of anatase, rutile and brookite TiO2 nanocrystals obtained from hydrothermal synthesis using cheap TiOSO4-H2SO4 precursor

PhD defense, Tuesday 10 November 2020, Jinlong Yu

2020.11.10 | Mie Meulengracht Christensen

Jinlong Yu

During his PhD studies, Jinlong Yu conducted research on successful synthesis of phase-pure anatase, rutile and brookite TiO2 polymorph nanocrystals by using cheap and industrial-grade TiOSO4-H2SO4 precursor and thorough three-dimensional morphology characterization of as-synthesized different TiO2 nanocrystals. Furthermore, Jinlong Yu also verified the possibility of producing reduced anatase, rutile and brookite TiO2-x nanocrystals via solid state reduction of original TiO2 polymorphs with NaBH4.

The new research findings contribute to large scale production of both original and reduced anatase, rutile and brookite TiO2 polymorphs by using industrial-grade TiOSO4-H2SO4 precursor and pave the way for further study of their potential applications in different areas.

The PhD study was completed at the Interdisciplinary Nanoscience Center (iNANO), Faculty of Natural Sciences, Aarhus University.

This summary was prepared by the PhD student.


Time: Tuesday, 10 November 2020 at 14:15
Place: The PhD defense will be held online. To receive a link to the event, please send an e-mail to Bo Brummerstedt Iversen, bo@chem.au.dk or Torben René Jensen, trj@chem.au.dk.
Title of PhD thesis: Regulating Polymorphism and Morphology of Titania Polymorphs in Hydrothermal Synthesis: From Anatase, Rutile to Brookite
Contact information: Jinlong Yu, e-mail: jlyu@chem.au.dk, tel.: +45 60902901
Members of the assessment committee:
Professor Wolfgang Bensch, Department of Inorganic Chemistry, Kiel University, Germany
Professor Poul Norby, Department of Energy Conversion and Storage, Technical University of Denmark, Denmark
Professor Torben René Jensen (chairman), iNANO and Department of Chemistry, Aarhus University, Denmark
Main supervisor:
Professor Bo Brummerstedt Iversen, iNANO and Department of Chemistry, Aarhus University, Denmark
Language: The PhD dissertation will be defended in English

The defense is public.

Due to the coronavirus situation, the PhD thesis will not be available for reading at the offices of the PhD administration. Instead, interested parties may send an e-mail to gradschool.nat@au.dk to receive a digital copy of the PhD thesis. Please note, it may in certain cases be necessary to make an individual arrangement to read the PhD thesis.

PhD defence
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