Chrome Extension
WeChat Mini Program
Use on ChatGLM
VIPCreated with Sketch.

    • Simultaneous Visualization and Quantification of Real-Time Charge in a Smart Electrochromic Supercapacitor Based on a Wisteria-Like Polyoxometalate/w18o49 Nanowire Composite

    Yanyan Yang,Fengru Li, Bo Fu,Yingying Song,Huiwen Shi,Xiaoyang Yu,Shuping Liu,Xiaoshu Qu

    Ceramics International（2024）

    Jilin Inst Chem Technol | Harbin Univ Commerce

    Cited 2|Views7
    Abstract
    Novel materials with highly synchronized electrochromic (EC) and energy storage properties are needed to simultaneously visualize and quantify the real-time charge state of energy storage devices. Herein, a film was prepared by the Layer-by-Layer assembly of W18O49 nanowires and a Preyssler-type polyoxometalate (POM) [P5W30O110]15− (P5W30). The introduction of amorphous POM decreased the band gap to 2.54 eV, which greatly facilitated the synergy between the EC and charge storage properties. Driven under a low voltage of −0.6 V, this W18O49/P5W30 composite film displayed strong and reversible changes in its optical absorbance in both the visible and near-infrared regions, and it also showed the typical pseudocapacitance behavior with an area capacitance of 34.71 mF cm−2. Moreover, this film was able to simultaneously quantify and visualize its own energy storage state and photothermal conversion in real time by significant color changes (maximum chromaticity difference: 72.44) and high absorbance changes (1.11 at 650 nm and 1.11 at 1200 nm). In addition, a gel EC supercapacitor based on the W18O49/P5W30 film as cathode and NiO film as anode exhibited an absorbance variation up to 0.75 and an area capacitance as high as 4.42 mF cm−2, and it successfully powered a light emitting diode using the stored electrical energy. This work not only broadens the application scope of POM-based EC materials but also provides a feasible design strategy for next-generation smart energy storage devices.
    More
    Translated text
    Key words
    Polyoxometalate,Composite film,Electrochromic supercapacitor,Dual-band electrochromic
    求助PDF
    上传PDF
    View via Publisher
    Bibtex
    AI Read Science
    AI Summary
    AI Summary is the key point extracted automatically understanding the full text of the paper, including the background, methods, results, conclusions, icons and other key content, so that you can get the outline of the paper at a glance.
    Example
    Background
    Key content
    Introduction
    Methods
    Results
    Related work
    Fund
    Key content
    • Pretraining has recently greatly promoted the development of natural language processing (NLP)
    • We show that M6 outperforms the baselines in multimodal downstream tasks, and the large M6 with 10 parameters can reach a better performance
    • We propose a method called M6 that is able to process information of multiple modalities and perform both single-modal and cross-modal understanding and generation
    • The model is scaled to large model with 10 billion parameters with sophisticated deployment, and the 10 -parameter M6-large is the largest pretrained model in Chinese
    • Experimental results show that our proposed M6 outperforms the baseline in a number of downstream tasks concerning both single modality and multiple modalities We will continue the pretraining of extremely large models by increasing data to explore the limit of its performance
    Upload PDF to Generate Summary
    Must-Reading Tree
    Example
    Generate MRT to find the research sequence of this paper
    Data Disclaimer
    The page data are from open Internet sources, cooperative publishers and automatic analysis results through AI technology. We do not make any commitments and guarantees for the validity, accuracy, correctness, reliability, completeness and timeliness of the page data. If you have any questions, please contact us by email: report@aminer.cn
    Chat Paper
    【要点】：论文提出了一种基于薇草状聚氧金属酸盐/ W18O49纳米线复合材料的智能电致变色超级电容器，能同时可视化并量化实时电荷状态，拓宽了POM基电致变色材料的应用范围。
    

    【方法】：通过层层组装W18O49纳米线和Preyssler型POM [P5W30O110]15− (P5W30)，制备了具有高度同步电致变色和储能性能的复合材料。
    

    【实验】：在低电压−0.6 V驱动下，该W18O49/P5W30复合膜在可见光和近红外区域展示了强烈的可逆光学吸收变化，并表现出典型的赝电容行为，面积电容为34.71 mF cm−2。使用该复合膜作为阴极，NiO膜作为阳极制备的凝胶电致变色超级电容器，实现了高达0.75的吸光度变化和4.42 mF cm−2的面积电容，并能成功为LED供电。实验中未提及具体数据集名称。