Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Green‐Synthesized Nanomaterial Coatings for High‐Performance Electrodes
Increasing demand for clean and renewable energy due to environmental impact and demand for advanced implantable and portable electronic devices motivate the need for developing technologies that can harvest energy at an affordable cost. Pencil graphite leads can be a promising electrode material due to its background currents, sensitivity, cost‐effectiveness, and ease of disposal when compared to conventional electrodes. This work focuses on developing a simple method to deliver high‐performance pencil graphite electrodes (PGEs) by coating green synthesized nanomaterials onto pencil leads. Green synthesized nanomaterials prepared from natural plant‐based sources like Azadirachta indica (neem), Rosa indica (rose), and Ocimum tenuiflorum (basil) are coated to modify the surface of the pencil lead, which renders better electrochemical activity. This iron nanoparticle (NP)‐coated PGEs (FeNP/PGE) from rose and neem extract exhibited good conductivity when compared to the bare and treated PGEs. The polarization curves obtained from cyclic voltammetry resulted in an open circuit potential (OCP) of 0.648 V for (FeNP/PGE) from rose extract when compared to bare (0.492 V) and treated (0.532 V), respectively. The maximum current density was obtained for FeNP/PGE from R. indica (1484.8 μA cm −2 ). Hence, FeNP/PGE (rose extract) electrode exhibits fast electron transfer kinetics and proved to be a better‐modified electrode and exhibits high performance.
Green‐Synthesized Nanomaterial Coatings for High‐Performance Electrodes
Increasing demand for clean and renewable energy due to environmental impact and demand for advanced implantable and portable electronic devices motivate the need for developing technologies that can harvest energy at an affordable cost. Pencil graphite leads can be a promising electrode material due to its background currents, sensitivity, cost‐effectiveness, and ease of disposal when compared to conventional electrodes. This work focuses on developing a simple method to deliver high‐performance pencil graphite electrodes (PGEs) by coating green synthesized nanomaterials onto pencil leads. Green synthesized nanomaterials prepared from natural plant‐based sources like Azadirachta indica (neem), Rosa indica (rose), and Ocimum tenuiflorum (basil) are coated to modify the surface of the pencil lead, which renders better electrochemical activity. This iron nanoparticle (NP)‐coated PGEs (FeNP/PGE) from rose and neem extract exhibited good conductivity when compared to the bare and treated PGEs. The polarization curves obtained from cyclic voltammetry resulted in an open circuit potential (OCP) of 0.648 V for (FeNP/PGE) from rose extract when compared to bare (0.492 V) and treated (0.532 V), respectively. The maximum current density was obtained for FeNP/PGE from R. indica (1484.8 μA cm −2 ). Hence, FeNP/PGE (rose extract) electrode exhibits fast electron transfer kinetics and proved to be a better‐modified electrode and exhibits high performance.
Green‐Synthesized Nanomaterial Coatings for High‐Performance Electrodes
Arya, Raj K. (Herausgeber:in) / Verros, George D. (Herausgeber:in) / Davim, J. Paulo (Herausgeber:in) / Shruthi Keerthi, D. (Autor:in) / Mukunda Vani, M. (Autor:in) / Krishnamurthy, Balaji (Autor:in)
04.10.2024
25 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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