Waterproof, high-contrast and fast response gasochromic thin film composed of Prussian blue, polyvinyl alcohol, 3-glycidoxypropyltrime- thoxysilane and catalytic nanoparticles

被引：3

作者：

Hu, Chih-Wei ^{[1
]}

Miura, Mayu ^{[1
]}

Okada, Masahisa ^{[1
]}

Yamada, Yasusei ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Innovat Funct Mat Res Inst, Moriyama ku, 4-205 Sakurasaka, Nagoya, Aichi 4638560, Japan

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2023年 / 258卷

关键词：

Catalytic nanoparticles; Crosslinker; Dynamic transmittance curves; Gasochromic materials; Hydrogen; Nanoparticles; Polyvinyl alcohol; Prussian blue; Water proof; FABRICATION; ELECTRODES; POLYMER;

D O I：

10.1016/j.solmat.2023.112409

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Here we synthesize a waterproof cross-linked gasochromic thin film obtained by incorporating Prussian blue nanoparticles, polyvinyl alcohol, crosslink agent: 3-glycidoxypropyltrimethoxysilane and catalytic platinum nanoparticles, applied by a single coating and heat process onto a substrate. The cross-linked polyvinyl alcoholPrussian blue (PVA-PB) films reveal an excellent hydrophilic character. The contrast ratio at 700 nm reaches 87.2. The cycle stability exceeds 200 cycles. The switching time from deep blue to transparency took 14.3 s for bleaching and 600 s for darkening. Surface electron microscopy, electrochemical analysis and Fourier-transform IR spectroscopy were used to investigate a series of waterproof Prussian blue films. The results showed the redox mechanism between polymer matrix, chrome and catalytic nanoparticles.

引用

页数：6