About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Printed Electronics and Additive Manufacturing: Advanced Functional Materials, Processing Concepts, and Emerging Applications
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Presentation Title |
Synthesis and Formulation of Multilayered Graphene Electrode for Water Sensing Applications |
Author(s) |
Felix White, Attila Rektor, Fereshteh Rajabi Kouchi, Tony Valayil Varghese, Prabhu U Arumugam, Harish Subbaraman, David Estrada |
On-Site Speaker (Planned) |
Felix White |
Abstract Scope |
Environmental sensors capable of identifying toxic chemicals like heavy metals and pesticides are in high demand. Additive manufacturing presents a cost-effective and scalable manufacturing approach to printing environmental sensors. Graphene demonstrates remarkable potential for environmental sensing due to its physical properties. Herein, we utilized an inkjet printer to fabricate and investigate graphene water quality sensors fabricated on flexible substrates. Several printable graphene inks were analyzed with an optimal concentration of 25-35 mg/mL was used to ensure jettability. The abundance of structural defects (e.g., edge defects) present in the printed graphene films resulted in good electron transfer and low detection limits using a standard ferric/ferrocyanide redox couple, [Fe(CN)6]−3/−4. The sensors were then tested in various solutions to ascertain their sensitivity toward heavy metals. Our additive approach provides significant control over sensor fabrication which allows for stable and repeatable electrochemical response in printed graphene sensors. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Environmental Effects, Sustainability |