Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Effect of pH on the structure and morphology of W18O49 nanowires and their electrochromic properties | |
Cai, Xuesong1; Xiao, Xiudi2; Sheng, Guizhang2,3; Zheng, Jieyuan2,3; Zhao, Yajie1; Xu, Gang2 | |
2022-07-15 | |
发表期刊 | CERAMICS INTERNATIONAL |
ISSN | 0272-8842 |
卷号 | 48期号:14页码:20791-20800 |
通讯作者 | Xiao, Xiudi(xiaoxd@ms.giec.ac.cn) ; Xu, Gang(xugang@ms.giec.ac.cn) |
摘要 | In wet-chemistry processes, pH value is an important parameter that can be used to control the microstructures of the as-grown nanostructures. In this work, W18O49 nanowires with crystalline@amorphous core-shell structures were synthesized by controlling the pH of the precursor solutions in a hydrothermal reaction. Due to surface functionalization by ethylene glycol (EG) groups, the hydrothermally grown W18O49 nanowires could be easily dispersed in aqueous environment, thus enabling the fabrication of electrochromic thin films of W18O49 nanowires by a simple spray-drying process. The optimized W18O49 nanowire films showed a large optical modulation (AT) of 81.1% at 633 nm, short response time (coloring/bleaching time rc/rb = 7.9 s/3.9 s), good cycle stability (AT retention was 84.5% after 1000 cycles), and the excellent memory effect (the color withstood for 36000s after turning off the voltage). Furthermore, the electrochromic device (ECD) (4 x 4 cm2) based on the W18O49 nanowires exhibits a large optical modulation of 56.6%, short response time (rc = 7.6 s, rb = 2.7 s), and superior coloration efficiency (CE) of 64 cm2 C-1. Finally, by simply amplifying the developed processes, a large-area electrochromic device (10 x 10 cm2) was successfully prepared, which implies the possibility of large-area spraying process for practical applications. |
关键词 | Electrochromic pH crystalline@amorphous W 18 O 49 nanowires Aqueous dispersion |
DOI | 10.1016/j.ceramint.2022.04.061 |
关键词[WOS] | PERFORMANCE ; ARRAYS ; AL3+ |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[22075288] ; Natural Science Foundation of Guangdong Province[2018A0303130146] ; Project of Science and Technology of Guangzhou[201904010171] ; Key R&D program of Guangzhou[202007020004] |
WOS研究方向 | Materials Science |
项目资助者 | National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Project of Science and Technology of Guangzhou ; Key R&D program of Guangzhou |
WOS类目 | Materials Science, Ceramics |
WOS记录号 | WOS:000810973100002 |
出版者 | ELSEVIER SCI LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/36838 |
专题 | 中国科学院广州能源研究所 |
通讯作者 | Xiao, Xiudi; Xu, Gang |
作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Guangzhou Inst Energy Convers, Chinese Acad Sci, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Cai, Xuesong,Xiao, Xiudi,Sheng, Guizhang,et al. Effect of pH on the structure and morphology of W18O49 nanowires and their electrochromic properties[J]. CERAMICS INTERNATIONAL,2022,48(14):20791-20800. |
APA | Cai, Xuesong,Xiao, Xiudi,Sheng, Guizhang,Zheng, Jieyuan,Zhao, Yajie,&Xu, Gang.(2022).Effect of pH on the structure and morphology of W18O49 nanowires and their electrochromic properties.CERAMICS INTERNATIONAL,48(14),20791-20800. |
MLA | Cai, Xuesong,et al."Effect of pH on the structure and morphology of W18O49 nanowires and their electrochromic properties".CERAMICS INTERNATIONAL 48.14(2022):20791-20800. |
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