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Reduced graphene oxide supersonically sprayed on wearable fabric and decorated with iron oxide for supercapacitor applications

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Journal of Materials Science & Technology 2021年第23期82卷 47-56页

作者： Ali Aldalbahi Edmund Samuel Bander S.Alotaibi Hany El-Hamshary Sam S.Yoon Department of Chemistry College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia School of Mechanical Engineering Korea UniversitySeoul136-713Republic of Korea

We demonstrate the fabrication of wearable supercapacitor *** electrodes were applied to wearable fabric by supersonically spraying the fabric with reduced graphene oxide(r GO)followed by decoration with iron oxide(Fe_(2)O_(3))nanoparticles via a hydrothermal *** integration of iron oxide with r GO flakes on wearable fabric demonstrates immense potential for applications in high-energystorage *** synergetic impact of the intermingled r GO flakes and Fe_(2)O_(3) nanoparticles enhances the charge transport within the composite electrode,ultimately improving the overall electrochemical *** advantage of the porous nature of the fabric,electrolyte diffusion into the active r GO and Fe_(2)O_(3) materials was significantly enhanced and subsequently increased the electrochemical interfacial *** effect of the Fe_(2)O_(3) concentration on the overall electrochemical performance was *** optimal composition yields a specific capacitance of 360 F g^(-1) at a current density of 1 Ag^(-1) with a capacitance retention rate of 89%after 8500 galvanostatic cycles,confirming the long-term stability of the Fe_(2)O_(3)/r GO fabric electrode.

关键词： Supersonic spraying Conductive textile wearable energy devices Reduced graphene oxide Iron oxide Supercapacitor

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Violin String Inspired Core-Sheath Silk/Steel Yarns for wearable Triboelectric Nanogenerator Applications

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Advanced Fiber Materials 2020年第1期2卷 24-33页

作者： Chao Ye Quanfu Xu Jing Ren Shengjie Ling School of Physical Science and Technology ShanghaiTech University393 Middle Huaxia RoadShanghai 201210China Department of Cardiology Xinhua HospitalSchool of MedicineShanghai Jiao Tong University200092 ShanghaiChina

Triboelectric nanogenerator(TENG)has attracted considerable attention in wearable electronics and energy harvesting associated with human ***/yarn electrodes are widely applied in the wearable TENG system,which remains a challenge to guarantee mechanical ductility and stable electrical functions during long-term *** by high quality violin strings core-sheath design,silk/stainless-steel integrated yarns(SSYs)are continuously produced by simple co-wrapping spinning technique,which shows excellent mechanical strength,flexibility,conductivity,weaveability and triboelectric *** SSYs can be modified to achieve tunable surface ***,TENG cables have been fabricated,which can be stretched up to 100%and reveal a fast responsiveness to the stretching extent(voltage output of about 0.2,0.6,1.8,2.8 V at 13%,25%,38%,50%stretching,respectively).The TENG cables integrated textiles can not only harvest the energy generated by body movement but can also work as a self-supplied motion detector.

关键词： Silk Fiber Triboelectric nanogenerator wearable energy devices

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