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Author: search.filters.author.Panda, SwatiSubject: search.filters.subject.energy harvesting

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    Recent Advances in Zwitterionic Materials and Hydrogels for Triboelectric Nanogenerators and Self-Powered Sensing
    (2025-08-08)
    Manojkumar, Kaliyannan
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    Muthuramalingam, Mukilan
    ;
    Sateesh, Dhara
    ;
    Sundaramoorthy, Arunmetha
    ;
    Srinivasa Babu, P. S.
    The integration of zwitterionic polymers with triboelectric nanogenerators (TENGs) has sparked significant interest in the conversion of mechanical energy into electricity. Zwitterionic polymers, characterized by their unique molecular structure featuring dual charge configurations, have revolutionized energy harvesting in TENG technology. This review explores recent advancements in the integration of zwitterionic polymers with TENGs, focusing on their applications in self-healing, antibacterial, flexible, and antifreezing scenarios. Despite offering superior properties such as enhanced output voltage and chemical stability, challenges persist in their synthesis complexity and compatibility. Strategies to address these challenges include the development of hybrid material systems and scalable synthesis methods. Overall, this review emphasizes the pivotal role of zwitterionic polymers in propelling the advancement of TENG technology, providing insights into current trends and future prospects.
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    Calcium Copper Titanate Particles Based Energy Harvesting and Removal of Pharmaceutical Pollutants
    (2025-05-13)
    Kaja, Kushal Ruthvik
    ;
    Behera, Swayam Aryam
    ;
    Das, Bhagyashree
    ;
    Hajra, Sugato
    ;
    Panda, Swati
    In this work, calcium copper titanate oxide (CaCu<inf>3</inf>Ti<inf>4</inf>O<inf>12</inf>, abbreviated as CCTO) was processed employing a solid-state reaction. The properties of CCTO were thoroughly characterized using various characterization tools. The CCTO particles layer and polytetrafluoroethylene (PTFE) acted as triboelectric layers, forming a contact and separation-based triboelectric nanogenerator (TENG). TENG, based on CCTO/PTFE, delivered an output of 74 V and 6 μA. TENG was utilized to harvest energy through various human activities, effectively charging capacitors, and was further attached to a pillow to monitor sleep. The study also evaluated the photocatalytic performance of CCTO for the degradation of doxycycline, achieving 87% efficiency within 45 minutes under visible light. The reaction pathway was thoroughly investigated, and catalyst reusability was examined. CCTO demonstrates potential as a dual-function material, serving both as a photocatalyst for environmental cleanup and as a triboelectric material for energy harvesting.
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    Triboelectrification Based on the Waste Waterproof Textiles for Multisource Energy Harvesting
    (2025-05-01)
    Kaja, Kushal Ruthvik
    ;
    Hajra, Sugato
    ;
    Panda, Swati
    ;
    Belal, Mohamed A.
    ;
    Pakawanit, Phakkhananan
    The demand for sustainable energy resources to power sensor networks such as consumer electronics, agricultural technologies, digital forest management, and home automation is rapidly increasing. There are sustainability challenges to consider, where waste waterproof textiles are critical to encourage the development of a circular economy in the development of new energy technologies. This present work focuses on the utilization of direct waste waterproof textiles to design two types of triboelectric nanogenerator (TENG), which include a liquid-solid based TENG (L-S TENG) and a flapper-type TENG. The bottom electrode configuration for the L-S TENG and single electric mode working mechanism is considered for the flapper-type TENG. Waste waterproof textiles can lead to a possible expansion of sustainable material for energy harvesters. The raincoat textile-based L-S TENG (L-STENG-R) is able to generate 0.5 V at a tilt angle of 50 degrees and power of 0.41 nW. TENGs based on discarded waterproof textiles are further utilized to demonstrate their phase change sensing, along with wind and water energy harvesting. This approach focus on decreasing waste and lower dependency on traditional resources to support environmentally responsible energy alternatives.