Electrodeposition of Ti-Doped Hierarchically Mesoporous Silica Microspheres/Tungsten Oxide Nanocrystallines Hybrid Films and Their Electrochromic Performance

In this paper, a novel Ti-doped hierarchically mesoporous silica microspheres/tungsten oxide (THMS/WO ) hybrid film was prepared by simultaneous electrodeposition of Ti-doped hierarchically mesoporous silica microspheres (THMSs) and WO nanocrystallines onto the fluoride doped tin dioxide (FTO) coate...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2019-12, Vol.9 (12), p.1795
Main Authors: Song, Ya, Zhang, Zhiyu, Yan, Lamei, Zhang, Ling, Liu, Simin, Xie, Shaowen, Xu, Lijian, Du, Jingjing
Format: Article
Language:English
Subjects:
Charge transfer
Coloration
Composite materials
Efficiency
Electrochromism
Electrodeposition
Electrodes
Fluorides
Glass substrates
Green buildings
Green development
Information storage
Microscopy
Microspheres
Morphology
Nanocrystals
Optical properties
Silica
Silicon dioxide
Smart buildings
Sodium tungstate
Spectrum analysis
Thin films
Tin
Tin dioxide
Titanium
Tungsten
Tungsten oxide
Tungsten oxides
Work stations
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Summary:In this paper, a novel Ti-doped hierarchically mesoporous silica microspheres/tungsten oxide (THMS/WO ) hybrid film was prepared by simultaneous electrodeposition of Ti-doped hierarchically mesoporous silica microspheres (THMSs) and WO nanocrystallines onto the fluoride doped tin dioxide (FTO) coated glass substrate. It is demonstrated that the incorporation of THMSs resulted in the hybrid film with improved electrochromic property. Besides, the content of THMSs plays an important role on the electrochromic property of the hybrid film. An excellent electrochromic THMS/WO hybrid film with good optical modulation (52.00% at 700 nm), high coloration efficiency (88.84 cm C at 700 nm), and superior cycling stability can be prepared by keeping the weight ratio of Na WO ·2H O (precursor of WO ):THMSs at 15:1. The outstanding electrochromic performances of the THMS/WO hybrid film were mainly attributed to the porous structure, which facilitates the charge-transfer, promotes the electrolyte infiltration and alleviates the expansion of the film during Li insertion. This kind of porous THMS/WO hybrid film is promising for a wide range of applications in smart homes, green buildings, airplanes, and automobiles.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano9121795