CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Chuanyin Xiong,Mengrui Li,Wei Zhao,Chao Duan,Lei Dai,Mengxia Shen,Yongjian Xu,Yonghao Ni
Smart devices based on paper-based composite materials are attracting increasing attention for applications in wearable and flexible energy storage and strain sensors, due to their outstanding flexibility and light weight properties. Although the paper materials are modified by various methods to overcome the shortcomings of poor conductivity and obtain various smart properties, the functionalized paper-based materials generally have poor swelling, mechanical strength and cycle stability in the electrochemical process, which seriously affects the application of paper-based devices in energy storage. Herein, for the first time a new class of symmetrical integrated smart paper-based supercapacitors with binder-free was fabricated by incorporating vitrimer (V) into original paper with pencil-drawing (OPD) loading polyaniline nanofibers (PN). The resultant OPD@PN-V supercapacitor show high gravimetric and areal specific energy density of 56 Wh kg −1 and 785 μWh cm −2 and simultaneously maintains high gravimetric and areal specific power density of 78 kW kg −1 and 286 mW cm −2 , substantially surpassing the performance of conventional supercapacitors device with separator. More importantly, the introduction of vitrimer greatly enhances the cycle stability of the supercapacitor, and the supercapacitor also displays good reshaping, shape-memory and self-healing properties, which greatly broadens the application scenarios of supercapacitors. Besides, the OPD@PN-V device also shows a great potential in detecting the movement of human.
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产品关联
DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
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2022
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IF 9.879
Puyou Jia,Yuxuan Shi,Fei Song,Yu Bei,Caoxing Huang,Meng Zhang,Lihong Hu,Yonghong Zhou
Bio-based polymer materials with multichannel self-healing ability as intelligent sensor have received significant attention. However, to date, study on bio-based vitrimer composites with multichannel self-healing ability as early temperature and fire warning sensors has never been reported. In this study, We prepared bio-based polyschiff vitrimers using vanillin and tung oil as raw materials, which possessed excellent self-healing and reprocessability. The electricity, heat and electromagnetic wave triggered self-healing of bio-based polyschiff vitrimers with graphene were achieved. A practicable strategy for fabricating bio-based via composite graphene oxide were developed as an efficient temperature warning sensor and fire warning sensor. These multifunctional bio-based polyschiff vitrimer composites developed could greatly promote its practical application in fire/high temperature prevention and protection applications in various critical fire risk and related perilous circumstances.
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 4
·e6393
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IF 3.1
Yang Xiong,Zihong Zhang,Ying Liu,Min Ye,Chengyao Hu,Jun Chen,Yawen Huang
It is still a big challenge to prepare superhydrophobic anti-icing coatings with long freeze delay performance and high durability. In this work, in different with conventional flexible porous coating, we prepared an asymmetric coating with hierarchical pocket structure by a facile hot-pressing/salt-leaching (BHS) method on a polyacrylate vitrimer polymer with mellability. The asymmetric architecture endowed porous coating with low density and high adhesion strength. The in-situ growth of silica nanoparticles in above porous coating and surface modification generated a superhydrophobic hierarchical pocket structure. As a result, the freezing delay time was drastically increased to 14,400 s at −10°C. Furthermore, owing to hierarchical pocket structure, the coating could maintain its superhydrophobicity and anti-icing performance under water flow impacting at 10 kPa pressure, 30 cycles of sandpaper abrasion, 50 cycles of tape peeling, showing advantageous high durability. By employing the hierarchical porous coating on heat exchangers, the energy consumption was drastically reduced by 93%.
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 21
·10898-10908
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IF 11.301
Chuanyin Xiong,Bingbing Li,Heguang Liu,Wei Zhao,Chao Duan,Haiwei Wu,Yonghao Ni
Wood-based materials are attracting extensive attention for applications in energy storage due to their environmental friendliness and the presence of numerous channels in their structure. However, the poor conductivity and flexibility of wood restrict its application. Although some researchers have made several efforts to improve the conductivity of wood by carbonization, the wood-based materials become brittle instead of flexible. Moreover, the cycling stability of carbonized wood-based materials becomes very poor due to their falling off during the process of electrochemical energy storage. Herein, for the first time, a smart carbonized lignin-free wood (CLFW)@Ni–NiS/vitrimer(V) composite multifunctional material with good reshaping, shape-memory, and self-healing properties was designed and fabricated. When assembled to a symmetric supercapacitor, the resultant CLFW@Ni–NiS/V hybrid showed not only the high gravimetric, areal, and volumetric energy densities of 38 W h kg−1, 687 μW h cm−2, and 58 W h L−1 and simultaneously maintained the high power densities of 56 kW kg−1, 202 mW cm−2, and 39 kW L−1, but also significantly enhanced cycling stability, respectively. In addition, CLFW@Ni–NiS/V presented good ORR and strain sensor properties. These outstanding advantages highlight the huge potential of smart wood-based materials with variable, shape-memory, and self-healing properties for applications in supercapacitors, catalysts, and sensors.
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DOI
高影响因子
危险品化学品经营许可证（带存储）