淡江大學機構典藏:Item 987654321/54965
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    题名: Fast switching Prussian blue film by modification with cetyltrimethylammonium bromide
    作者: Yang, Dung-Jing;Hsu, Chih-Yu;Lin, Cheng-Lan;Chen, Po-Yen;Hu, Chih-Wei;R. Vittal;Ho, Kuo-Chuan
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Cetyltrimethylammonium bromide (CTAB);Electrochemical quartz crystal microbalance (EQCM);Electrochromic device;Fast switching;Prussian blue (PB)
    日期: 2012-04
    上传时间: 2011-08-04 12:06:56 (UTC+8)
    出版者: Amsterdam: Elsevier BV * North-Holland
    摘要: A novel process is developed for the preparation of Prussian blue (PB) film, involving its electrodeposition from its precursor solution, containing additionally the surfactant, cetyltrimethylammonium bromide (CTAB); the film is denoted as CTAB-modified PB film. The present approach allows for mitigating the energy barrier of redox reactions between Prussian blue and its reduced state, Everitt’s salt. The absorbance spectra of the CTAB-modified PB exhibit a maximal optical difference at 690 nm. The transmittance changes (ΔT) of CTAB-modified PB film and unmodified PB film were measured in the electrolyte of 0.5 M KCl and 0.01 M HCl at 690 nm. It reveals that CTAB-PB film took 4.2 and 2.4 s for darkening (oxidation) and bleaching (reduction), respectively, for 44.2% transmittance change (ΔT), whereas the unmodified film required 35 and 55 s for 42.1% of ΔT. By an electrochemical quartz crystal microbalance (EQCM) analysis, it is observed that the insertion and extraction of potassium ions and water molecules at the interface of the CTAB-modified PB film and the electrolyte solution are faster than those of the unmodified PB film. Also, during the potential cycling of the CTAB-modified PB film, it was found to be stable, with reference to the stability of the unmodified PB film.
    關聯: Solar Energy Materials and Solar Cells 99, pp.129–134
    DOI: 10.1016/j.solmat.2011.05.026
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

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