| Autor: |
Khandelwal G; Nanomaterials and System Lab, Faculty of Applied Energy Systems, Major of Mechatronics Engineering, Jeju National University, Jeju 690756, South Korea., Ediriweera MK; Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Republic of Korea., Kumari N; Department of Textile Technology Indian Institute of Technology - Delhi, Delhi, India., Maria Joseph Raj NP; Nanomaterials and System Lab, Faculty of Applied Energy Systems, Major of Mechatronics Engineering, Jeju National University, Jeju 690756, South Korea., Cho SK; Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Republic of Korea.; Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea., Kim SJ; Nanomaterials and System Lab, Faculty of Applied Energy Systems, Major of Mechatronics Engineering, Jeju National University, Jeju 690756, South Korea. |
| Abstrakt: |
The biomolecules offer different metal-binding sites to form a coordination polymer with structural diversity. The coordination directed one-dimensional metal-biomolecule nanofibers (Cu-Asp NFs) designed using copper as metal ion and aspartate as a ligand for triboelectric nanogenerator (TENG) is reported here. The different characterization techniques reveal the detailed characteristics of the synthesized Cu-Asp NFs. The robust coating of the Cu-Asp NFs is achieved using a simple tape cast coater. The bending and water dipping studies suggest the stability of the coated material. The relative polarity test and Kelvin probe force microscopy (KPFM) reveal the position of Cu-Asp in the triboelectric series. The Cu-Asp NFs and Teflon are used as the active material for the fabrication of freestanding mode (NF-TENG) and contact-separation mode (cNF-TENG) TENG. The NF-TENG generates an output of 200 V and 6 μA. The simple ion deposition technique enhances the voltage, current, and transferred charge of cNF-TENG by 2.5, 8, and 3 times. The use of the material for the single electrode sliding mode device further confirms the coated material's stability and robustness. A selective self-powered thioacetamide sensor is developed with the cNF-TENG, which exhibits a sensitivity of 0.76 v mM -1 . Finally, NF-TENG is demonstrated for powering up numerous portable electronics. |
