Mg-Doped VO2@ZrO2 Core−Shell Nanoflakes for Thermochromic Smart Windows with Enhanced Performance

Zuohao WEN; Yujie KE; Chengchen FENG; Shuliang FANG; Miuyang SUN; Xinghai LIU; Yi LONG

doi:10.1002/admi.202001606

Mg-Doped VO₂@ZrO₂ Core−Shell Nanoflakes for Thermochromic Smart Windows with Enhanced Performance

Zuohao WEN
, Yujie KE
, Chengchen FENG
, Shuliang FANG
, Miuyang SUN
, Xinghai LIU^*
, Yi LONG^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

26 Citations (Scopus)

Abstract

The VO₂-based smart windows can dynamically and reversibly adjust the indoor solar irradiation to reduce the energy consumption for building glasses. This paper reports the first successful preparation of Mg-doped VO₂@ZrO₂ core−shell nanocrystals with promoted thermochromic performance as well as tunable appearance and wettability. The achieved combination of T_lum of 52.4% and ∆T_sol of 7.1% is comparable to the best-reported results of VO₂-based core−shell rod structures. The thickness of ZrO₂ shell is tunable between 3 and 14 nm, resulting in a slightly hydrophobic surface and a slight color change toward blue-green and brighter produced films. The preparation method based on hydrothermal and UV-curing methods is facile. This work may inspire future development of VO₂ synthesis, their structure−property, and the application the thermochromic films for energy-saving purposes in buildings or automobiles.

Original language	English
Article number	2001606
Journal	Advanced Materials Interfaces
Volume	8
Issue number	1
Early online date	25 Nov 2020
DOIs	https://doi.org/10.1002/admi.202001606
Publication status	Published - 8 Jan 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Funding

Z.W. and Y.K. contributed equally to this work. X.L. acknowledges the study is supported by the financial support of this work by NSAF (Grant No. 51776143). The use of SEM, XPS, TEM, and AFM was funded by the Open Subsidies for large‐scale Equipment of Wuhan University (Grant No. LF20181061). Y.L. thanks the funding support by the National Research Foundation, Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme and Sino‐Singapore International Joint Research Institute for funding support.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

nanocrystals
solar energy
thermochromic
UV-curing
vanadium dioxide

Access to Document

10.1002/admi.202001606

Cite this

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title = "Mg-Doped VO2@ZrO2 Core−Shell Nanoflakes for Thermochromic Smart Windows with Enhanced Performance",

abstract = "The VO2-based smart windows can dynamically and reversibly adjust the indoor solar irradiation to reduce the energy consumption for building glasses. This paper reports the first successful preparation of Mg-doped VO2@ZrO2 core−shell nanocrystals with promoted thermochromic performance as well as tunable appearance and wettability. The achieved combination of Tlum of 52.4\% and ∆Tsol of 7.1\% is comparable to the best-reported results of VO2-based core−shell rod structures. The thickness of ZrO2 shell is tunable between 3 and 14 nm, resulting in a slightly hydrophobic surface and a slight color change toward blue-green and brighter produced films. The preparation method based on hydrothermal and UV-curing methods is facile. This work may inspire future development of VO2 synthesis, their structure−property, and the application the thermochromic films for energy-saving purposes in buildings or automobiles.",

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AU - WEN, Zuohao

AU - KE, Yujie

AU - FENG, Chengchen

AU - FANG, Shuliang

AU - SUN, Miuyang

AU - LIU, Xinghai

AU - LONG, Yi

PY - 2021/1/8

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N2 - The VO2-based smart windows can dynamically and reversibly adjust the indoor solar irradiation to reduce the energy consumption for building glasses. This paper reports the first successful preparation of Mg-doped VO2@ZrO2 core−shell nanocrystals with promoted thermochromic performance as well as tunable appearance and wettability. The achieved combination of Tlum of 52.4% and ∆Tsol of 7.1% is comparable to the best-reported results of VO2-based core−shell rod structures. The thickness of ZrO2 shell is tunable between 3 and 14 nm, resulting in a slightly hydrophobic surface and a slight color change toward blue-green and brighter produced films. The preparation method based on hydrothermal and UV-curing methods is facile. This work may inspire future development of VO2 synthesis, their structure−property, and the application the thermochromic films for energy-saving purposes in buildings or automobiles.

AB - The VO2-based smart windows can dynamically and reversibly adjust the indoor solar irradiation to reduce the energy consumption for building glasses. This paper reports the first successful preparation of Mg-doped VO2@ZrO2 core−shell nanocrystals with promoted thermochromic performance as well as tunable appearance and wettability. The achieved combination of Tlum of 52.4% and ∆Tsol of 7.1% is comparable to the best-reported results of VO2-based core−shell rod structures. The thickness of ZrO2 shell is tunable between 3 and 14 nm, resulting in a slightly hydrophobic surface and a slight color change toward blue-green and brighter produced films. The preparation method based on hydrothermal and UV-curing methods is facile. This work may inspire future development of VO2 synthesis, their structure−property, and the application the thermochromic films for energy-saving purposes in buildings or automobiles.

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KW - solar energy

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KW - vanadium dioxide

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