NiO/PB复合电致变色薄膜的制备及其性能研

doi:10.15541/jim20160688

无机材料学报 ›› 2017, Vol. 32 ›› Issue (9): 949-954.DOI: 10.15541/jim20160688 CSTR: 32189.14.10.15541/jim20160688

NiO/PB复合电致变色薄膜的制备及其性能研

岳言芳¹, 李海增¹, 李克睿¹, 王金敏², 张青红³, 李耀刚³, 陈培³, 王宏志¹

(1. 东华大学材料科学与工程学院, 纤维材料改性国家重点实验室, 上海 201620; 2. 上海第二工业大学环境与材料工程学院, 上海 201209; 3. 东华大学材料科学与工程学院, 先进玻璃制造教育部工程中心, 上海 201620)

收稿日期:2016-12-16 修回日期:2017-02-08 出版日期:2017-09-30 网络出版日期:2017-08-29
作者简介:岳言芳(1992–), 女, 硕士研究生. E-mail: yanfangyue_2010@163.com
基金资助:
国家自然科学基金(51672043 , 61674028, 61376009);广东省科技计划项目(2016B090932003)

Preparation and Properties of NiO/PB Hybrid Electrochromic Fil

YUE Yan-Fang¹, LI Hai-Zeng¹, LI Ke-Rui¹, WANG Jin-Min², ZHANG Qing-Hong³, LI Yao-Gang³, CHEN Pei³, WANG Hong-Zhi¹

(1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; 2. School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China; 3. Engineering Research Center of Advanced Glasses Manufacturing Technology, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China)

Received:2016-12-16 Revised:2017-02-08 Published:2017-09-30 Online:2017-08-29
About author:YUE Yan-Fang. E-mail: yanfangyue_2010@163.com
Supported by:
National Natural Science Foundation of China (51672043, 61674028, 61376009);Guangdong Province Science and Technology Program (2016B090932003)

摘要/Abstract

摘要：

采用水热法制备了垂直生长的氧化镍(NiO)纳米片薄膜, 并利用电沉积法将普鲁士蓝(PB)负载到NiO纳米片薄膜上, 制备了新型的NiO/PB复合电致变色薄膜。利用X射线衍射仪(XRD)、场发射扫描电镜(SEM)对样品的晶型以及微观形貌进行了表征, 采用紫外-可见光光度计以及电化学工作站对NiO/PB复合薄膜的电化学和电致变色性能进行了研究和表征。结果表明: NiO/PB复合电致变色薄膜具有多孔结构和较大的比表面积, 可以增大电解质与电极材料的接触面积。PB成功负载到NiO薄膜表面, 使NiO/PB复合薄膜表现出较大的电流密度。相比于单层NiO薄膜, NiO/PB复合薄膜表现出更好的电致变色性能, 其光调制范围可以达到46%, 着色效率为141 cm²/C, 并且其着色时间可以缩短到5 s, 褪色时间为6 s。

关键词: NiO, PB, 电致变色, 智能窗

Abstract:

The vertically grown NiO hierarchical nano-structures were synthesized on FTO-coated glass using a crystal-seed-assisted hydrothermal technique. The NiO/PB film was obtained by the electrodeposition of PB on the NiO film. The crystal structures of the synthesis products were identified by X-ray diffraction technique and the microstructure and morphology of the films were characterized by field emission scanning electron microscope. The electrochemical property experiments were performed with an electrochemical workstation and the optical properties of the devices were recorded by Lambda 950. The NiO/PB film is composed of nanosheets and thus forming a porous structure. The porous structure could accelerate the interface electron kinetics between the film and electrolyte because its large electrochemical active area. Higher charge-insertion density of the NiO/PB film over the same period indicates faster kinetics, which means that the NiO/PB film possesses fast electrochemical response. Compared with the single NiO film, the NiO/PB film exhibits highly enhanced electrochromic performances, i.e. high optical modulation (46% at 700 nm without background correction), high coloration efficiency of 141 cm²/C at voltage of 2.5 V, and fast response time of 6 s and 5 s for bleaching and coloration states, respectively.

Key words: NiO, PB, electrochromic, smart windows

中图分类号:

TQ174

岳言芳, 李海增, 李克睿, 王金敏, 张青红, 李耀刚, 陈培, 王宏志. NiO/PB复合电致变色薄膜的制备及其性能研[J]. 无机材料学报, 2017, 32(9): 949-954.

YUE Yan-Fang, LI Hai-Zeng, LI Ke-Rui, WANG Jin-Min, ZHANG Qing-Hong, LI Yao-Gang, CHEN Pei, WANG Hong-Zhi. Preparation and Properties of NiO/PB Hybrid Electrochromic Fil[J]. Journal of Inorganic Materials, 2017, 32(9): 949-954.

图/表 10

图1 电致变色器件组装示意图

Fig. 1 Schematic illustration for the electrochromic device preparation process

图2 (a) NiO薄膜和(b) FTO玻璃的XRD图谱

Fig. 2 XRD patterns of (a) as-prepared NiO film and (b) FTO- glass

图3 NiO/PB 复合薄膜表面(a) Fe和(b) Ni元素分布图

Fig. 3 EDS mapping of Fe and Ni elements in the surface of NiO/PB film

图4 NiO/PB复合薄膜表面EDS能谱分析结果

Fig. 4 EDS analysis of the NiO/PB film

图5 NiO薄膜(a, b)和NiO/PB薄膜(c, d)的SEM照片

Fig. 5 FESEM morphologies of NiO film (a, b) and NiO/PB films (c, d)

图6 NiO薄膜和NiO/PB薄膜的循环伏安曲线图

Fig. 6 Cyclic voltammetry of NiO and NiO/PB films

图7 ECD-1 (a)和ECD-2(b)在着色态和褪色态的紫外-可见光透过率曲线

Fig. 7 UV-Vis transmittance spectra of as-prepared ECD-1 (a) and ECD-2 (b)

图8 ECD-1和ECD-2 在着色态和褪色态的原位光透过率变化曲线图

Fig. 8 Switching time characteristics between the colored and bleached states for ECD-1 and ECD-2 measured at 700 nm with potential of -3 V and 2.5 V

图9 (a) ECD-1和(b) ECD-2电致变色器件的光密度变化值随注入电荷密度的变化曲线图

Fig. 9 OD variation with respect to the charge density for (a) ECD-1 and (b) ECD-2 measured at 700 nm with a potential of 2.5 V

图10 ECD-1和ECD-2计时电流曲线的峰值电流密度随循环次数的变化关系

Fig. 10 Peak current evolution of the ECD-1 and ECD-2 during the step chronoamperometric cycles

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NiO/PB复合电致变色薄膜的制备及其性能研

Preparation and Properties of NiO/PB Hybrid Electrochromic Fil

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