VO2@SiO2/Poly(N-isopropylacrylamide) Hybrid Nanothermochromic Microgels for Smart Window

Yu Wang; Fang Zhao; Jie Wang; Ali Raza Khan; Yulin Shi; Zhang Chen; Kaiqiang Zhang; Li Li; Yanfeng Gao; Xuhong Guo

doi:10.1021/acs.iecr.8b02692

VO₂@SiO₂/Poly(N-isopropylacrylamide) Hybrid Nanothermochromic Microgels for Smart Window

Yu Wang
, Fang Zhao^*
, Jie Wang
, Ali Raza Khan
, Yulin Shi
, Zhang Chen
, Kaiqiang Zhang
, Li Li
, Yanfeng Gao
, Xuhong Guo

^*Corresponding author for this work

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

29 Scopus citations

Abstract

VO₂/PNIPAm hybrid thermochromic material has been verified as promising to improve optical performance of smart windows. However, VO₂ can be easily oxidized especially when being dispersed in the hydrogel matrix, and also the nonuniform dispersion of VO₂ in a host will worsen the material's optical performance. Herein, pure VO₂(M)@SiO₂ nanoparticles (NPs) were first prepared using a surfactant-free method. Then VO₂(M)@SiO₂/PNIPAm hybrid microgels were synthesized through suspension polymerization. The VO₂(M)@SiO₂ NPs in the hydrogel matrix exhibited obviously improved resistance to oxidation. Monodispersed hybrid microgel with uniformly distributed VO₂(M)@SiO₂ NPs (Sample I) was obtained. Meanwhile, compared with the best VO₂ film reported, our composite microgel (Sample III) demonstrated a 164% increase in the solar modulating ability at a relatively high average luminous transmittance (38.4%). All these remarkable features of VO₂(M)@SiO₂/PNIPAm microgel synthesized in our work will help a lot in the practical application of the inorganic-organic hybrid nanothermochromic materials.

Original language	English
Pages (from-to)	12801-12808
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	38
DOIs	https://doi.org/10.1021/acs.iecr.8b02692
State	Published - 26 Sep 2018
Externally published	Yes

Access to Document

10.1021/acs.iecr.8b02692

Cite this

@article{e9de42bd008447969c5143463ef4ff7c,

title = "VO2@SiO2/Poly(N-isopropylacrylamide) Hybrid Nanothermochromic Microgels for Smart Window",

abstract = "VO2/PNIPAm hybrid thermochromic material has been verified as promising to improve optical performance of smart windows. However, VO2 can be easily oxidized especially when being dispersed in the hydrogel matrix, and also the nonuniform dispersion of VO2 in a host will worsen the material's optical performance. Herein, pure VO2(M)@SiO2 nanoparticles (NPs) were first prepared using a surfactant-free method. Then VO2(M)@SiO2/PNIPAm hybrid microgels were synthesized through suspension polymerization. The VO2(M)@SiO2 NPs in the hydrogel matrix exhibited obviously improved resistance to oxidation. Monodispersed hybrid microgel with uniformly distributed VO2(M)@SiO2 NPs (Sample I) was obtained. Meanwhile, compared with the best VO2 film reported, our composite microgel (Sample III) demonstrated a 164\% increase in the solar modulating ability at a relatively high average luminous transmittance (38.4\%). All these remarkable features of VO2(M)@SiO2/PNIPAm microgel synthesized in our work will help a lot in the practical application of the inorganic-organic hybrid nanothermochromic materials.",

author = "Yu Wang and Fang Zhao and Jie Wang and Khan, \{Ali Raza\} and Yulin Shi and Zhang Chen and Kaiqiang Zhang and Li Li and Yanfeng Gao and Xuhong Guo",

note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = sep,

day = "26",

doi = "10.1021/acs.iecr.8b02692",

language = "英语",

volume = "57",

pages = "12801--12808",

journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "38",

}

TY - JOUR

T1 - VO2@SiO2/Poly(N-isopropylacrylamide) Hybrid Nanothermochromic Microgels for Smart Window

AU - Wang, Yu

AU - Zhao, Fang

AU - Wang, Jie

AU - Khan, Ali Raza

AU - Shi, Yulin

AU - Chen, Zhang

AU - Zhang, Kaiqiang

AU - Li, Li

AU - Gao, Yanfeng

AU - Guo, Xuhong

PY - 2018/9/26

Y1 - 2018/9/26

N2 - VO2/PNIPAm hybrid thermochromic material has been verified as promising to improve optical performance of smart windows. However, VO2 can be easily oxidized especially when being dispersed in the hydrogel matrix, and also the nonuniform dispersion of VO2 in a host will worsen the material's optical performance. Herein, pure VO2(M)@SiO2 nanoparticles (NPs) were first prepared using a surfactant-free method. Then VO2(M)@SiO2/PNIPAm hybrid microgels were synthesized through suspension polymerization. The VO2(M)@SiO2 NPs in the hydrogel matrix exhibited obviously improved resistance to oxidation. Monodispersed hybrid microgel with uniformly distributed VO2(M)@SiO2 NPs (Sample I) was obtained. Meanwhile, compared with the best VO2 film reported, our composite microgel (Sample III) demonstrated a 164% increase in the solar modulating ability at a relatively high average luminous transmittance (38.4%). All these remarkable features of VO2(M)@SiO2/PNIPAm microgel synthesized in our work will help a lot in the practical application of the inorganic-organic hybrid nanothermochromic materials.

AB - VO2/PNIPAm hybrid thermochromic material has been verified as promising to improve optical performance of smart windows. However, VO2 can be easily oxidized especially when being dispersed in the hydrogel matrix, and also the nonuniform dispersion of VO2 in a host will worsen the material's optical performance. Herein, pure VO2(M)@SiO2 nanoparticles (NPs) were first prepared using a surfactant-free method. Then VO2(M)@SiO2/PNIPAm hybrid microgels were synthesized through suspension polymerization. The VO2(M)@SiO2 NPs in the hydrogel matrix exhibited obviously improved resistance to oxidation. Monodispersed hybrid microgel with uniformly distributed VO2(M)@SiO2 NPs (Sample I) was obtained. Meanwhile, compared with the best VO2 film reported, our composite microgel (Sample III) demonstrated a 164% increase in the solar modulating ability at a relatively high average luminous transmittance (38.4%). All these remarkable features of VO2(M)@SiO2/PNIPAm microgel synthesized in our work will help a lot in the practical application of the inorganic-organic hybrid nanothermochromic materials.

UR - https://www.scopus.com/pages/publications/85053622572

U2 - 10.1021/acs.iecr.8b02692

DO - 10.1021/acs.iecr.8b02692

M3 - 文章

AN - SCOPUS:85053622572

SN - 0888-5885

VL - 57

SP - 12801

EP - 12808

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 38

ER -

VO₂@SiO₂/Poly(N-isopropylacrylamide) Hybrid Nanothermochromic Microgels for Smart Window

Abstract

Access to Document

Other files and links

Fingerprint

Cite this