Inherent Impurities in Graphene/Polylactic Acid Filament Strongly Influence on the Capacitive Performance of 3D-Printed Electrode
Ghosh K, Ng S, Iffelsberger C, Pumera M (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 26
Pages Range: 15746-15753
Journal Issue: 67
Abstract
Additive manufacturing or 3D-printing have become promising fabrication techniques in the field of electrochemical energy storage applications such as supercapacitors, and batteries. Of late, a commercially available graphene/polylactic acid (PLA) filament has been commonly used for Fused Deposition Modeling (FDM) 3D-printing in the fabrication of electrodes for supercapacitors and Li-ion batteries. This graphene/PLA filament contains metal-based impurities such as titanium oxide and iron oxide. In this study, we show a strong influence of inherent impurities in the graphene/PLA filament for supercapacitor applications. A 3D-printed electrode is prepared and subsequently thermally activated for electrochemical measurement. A deep insight has been taken to look into the pseudocapacitive contribution from the metal-based impurities which significantly enhanced the overall capacitance of the 3D-printed graphene/PLA electrode. A systematic approach has been shown to remove the impurities from the printed electrodes. This has a broad implication on the interpretation of the capacitance of 3D-printed composites.
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Czech Republic (CZ)How to cite
APA:
Ghosh, K., Ng, S., Iffelsberger, C., & Pumera, M. (2020). Inherent Impurities in Graphene/Polylactic Acid Filament Strongly Influence on the Capacitive Performance of 3D-Printed Electrode. Chemistry - A European Journal, 26(67), 15746-15753. https://dx.doi.org/10.1002/chem.202004250
MLA:
Ghosh, Kalyan, et al. "Inherent Impurities in Graphene/Polylactic Acid Filament Strongly Influence on the Capacitive Performance of 3D-Printed Electrode." Chemistry - A European Journal 26.67 (2020): 15746-15753.
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