Thermolysis-Driven Growth of Vanadium Oxide Nanostructures Revealed by In Situ Transmission Electron Microscopy: Implications for Battery Applications

Dnyaneshwar S. Gavhane; Atul D. Sontakke; Marijn A. van Huis

doi:10.1021/acsanm.3c00397

Thermolysis-Driven Growth of Vanadium Oxide Nanostructures Revealed by In Situ Transmission Electron Microscopy: Implications for Battery Applications

Dnyaneshwar S. Gavhane
, Atul D. Sontakke
, Marijn A. van Huis^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Understanding the growth modes of 2D transition-metal oxides through direct observation is of vital importance to tailor these materials to desired structures. Here, we demonstrate thermolysis-driven growth of 2D V₂O₅ nanostructures via in situ transmission electron microscopy (TEM). Various growth stages in the formation of 2D V₂O₅ nanostructures through thermal decomposition of a single solid-state NH₄VO₃ precursor are unveiled during the in situ TEM heating. Growth of orthorhombic V₂O₅ 2D nanosheets and 1D nanobelts is observed in real time. The associated temperature ranges in thermolysis-driven growth of V₂O₅ nanostructures are optimized through in situ and ex situ heating. Also, the phase transformation of V₂O₅ to VO₂ was revealed in real time by in situ TEM heating. The in situ thermolysis results were reproduced using ex situ heating, which offers opportunities for upscaling the growth of vanadium oxide-based materials. Our findings offer effective, general, and simple pathways to produce versatile 2D V₂O₅ nanostructures for a range of battery applications.

Original language	English
Pages (from-to)	7280-7289
Number of pages	10
Journal	ACS Applied Nano Materials
Volume	6
Issue number	9
DOIs	https://doi.org/10.1021/acsanm.3c00397
Publication status	Published - 12 May 2023

Bibliographical note

Funding Information:
This project was financially supported by the European Research Council through an ERC Consolidator Grant NANO-INSITU (No. 683076). The authors thank Hans Meeldijk and Chris Schneijdenberg from Electron Microscopy Utrecht for help with TEM experimentation. We thank Prof. Dr. Alfons van Blaaderen for useful discussions on the project.

Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society

Funding

This project was financially supported by the European Research Council through an ERC Consolidator Grant NANO-INSITU (No. 683076). The authors thank Hans Meeldijk and Chris Schneijdenberg from Electron Microscopy Utrecht for help with TEM experimentation. We thank Prof. Dr. Alfons van Blaaderen for useful discussions on the project.

Keywords

2D materials
ex situ growth
in situ transmission electron microscopy
thermolysis
VO

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acsanm.3c00397Final published version, 12.6 MBLicence: CC BY

Cite this

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title = "Thermolysis-Driven Growth of Vanadium Oxide Nanostructures Revealed by In Situ Transmission Electron Microscopy: Implications for Battery Applications",

abstract = "Understanding the growth modes of 2D transition-metal oxides through direct observation is of vital importance to tailor these materials to desired structures. Here, we demonstrate thermolysis-driven growth of 2D V2O5 nanostructures via in situ transmission electron microscopy (TEM). Various growth stages in the formation of 2D V2O5 nanostructures through thermal decomposition of a single solid-state NH4VO3 precursor are unveiled during the in situ TEM heating. Growth of orthorhombic V2O5 2D nanosheets and 1D nanobelts is observed in real time. The associated temperature ranges in thermolysis-driven growth of V2O5 nanostructures are optimized through in situ and ex situ heating. Also, the phase transformation of V2O5 to VO2 was revealed in real time by in situ TEM heating. The in situ thermolysis results were reproduced using ex situ heating, which offers opportunities for upscaling the growth of vanadium oxide-based materials. Our findings offer effective, general, and simple pathways to produce versatile 2D V2O5 nanostructures for a range of battery applications.",

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author = "Gavhane, \{Dnyaneshwar S.\} and Sontakke, \{Atul D.\} and \{van Huis\}, \{Marijn A.\}",

note = "Funding Information: This project was financially supported by the European Research Council through an ERC Consolidator Grant NANO-INSITU (No. 683076). The authors thank Hans Meeldijk and Chris Schneijdenberg from Electron Microscopy Utrecht for help with TEM experimentation. We thank Prof. Dr. Alfons van Blaaderen for useful discussions on the project. Publisher Copyright: {\textcopyright} 2023 The Authors. Published by American Chemical Society",

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Thermolysis-Driven Growth of Vanadium Oxide Nanostructures Revealed by In Situ Transmission Electron Microscopy: Implications for Battery Applications. / Gavhane, Dnyaneshwar S.; Sontakke, Atul D.; van Huis, Marijn A.
In: ACS Applied Nano Materials, Vol. 6, No. 9, 12.05.2023, p. 7280-7289.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Thermolysis-Driven Growth of Vanadium Oxide Nanostructures Revealed by In Situ Transmission Electron Microscopy

T2 - Implications for Battery Applications

AU - Gavhane, Dnyaneshwar S.

AU - Sontakke, Atul D.

AU - van Huis, Marijn A.

N1 - Funding Information: This project was financially supported by the European Research Council through an ERC Consolidator Grant NANO-INSITU (No. 683076). The authors thank Hans Meeldijk and Chris Schneijdenberg from Electron Microscopy Utrecht for help with TEM experimentation. We thank Prof. Dr. Alfons van Blaaderen for useful discussions on the project. Publisher Copyright: © 2023 The Authors. Published by American Chemical Society

PY - 2023/5/12

Y1 - 2023/5/12

N2 - Understanding the growth modes of 2D transition-metal oxides through direct observation is of vital importance to tailor these materials to desired structures. Here, we demonstrate thermolysis-driven growth of 2D V2O5 nanostructures via in situ transmission electron microscopy (TEM). Various growth stages in the formation of 2D V2O5 nanostructures through thermal decomposition of a single solid-state NH4VO3 precursor are unveiled during the in situ TEM heating. Growth of orthorhombic V2O5 2D nanosheets and 1D nanobelts is observed in real time. The associated temperature ranges in thermolysis-driven growth of V2O5 nanostructures are optimized through in situ and ex situ heating. Also, the phase transformation of V2O5 to VO2 was revealed in real time by in situ TEM heating. The in situ thermolysis results were reproduced using ex situ heating, which offers opportunities for upscaling the growth of vanadium oxide-based materials. Our findings offer effective, general, and simple pathways to produce versatile 2D V2O5 nanostructures for a range of battery applications.

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KW - in situ transmission electron microscopy

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ER -

Thermolysis-Driven Growth of Vanadium Oxide Nanostructures Revealed by In Situ Transmission Electron Microscopy: Implications for Battery Applications

Abstract

Bibliographical note

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Keywords

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