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3D printed graphene based energy storage devices
Foster, Christopher W. Down, Michael P. Zhang, Yan Ji, Xiaobo Rowley-Neale, Samuel J. Smith, Graham C. Kelly, Peter J. Banks, Craig E.
Foster, Christopher W.
Down, Michael P.
Zhang, Yan
Ji, Xiaobo
Rowley-Neale, Samuel J.
Smith, Graham C.
Kelly, Peter J.
Banks, Craig E.
Advisors
Editors
Other Contributors
EPub Date
Publication Date
2017-03-03
Submitted Date
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Abstract
3D printing technology provides a unique platform for rapid prototyping of numerous applications due to its ability to produce low cost 3D printed platforms. Herein, a graphene-based polylactic acid filament (graphene/PLA) has been 3D printed to fabricate a range of 3D disc electrode (3DE) configurations using a conventional RepRap fused deposition moulding (FDM) 3D printer, which requires no further modification/ex-situ curing step. To provide proof-of-concept, these 3D printed electrode architectures are characterised both electrochemically and physicochemically and are advantageously applied as freestanding anodes within Li-ion batteries and as solid-state supercapacitors. These freestanding anodes neglect the requirement for a current collector, thus offering a simplistic and cheaper alternative to traditional Li-ion based setups. Additionally, the ability of these devices’ to electrochemically produce hydrogen via the hydrogen evolution reaction (HER) as an alternative to currently utilised platinum based electrodes (with in electrolysers) is also performed. The 3DE demonstrates an unexpectedly high catalytic activity towards the HER (−0.46 V vs. SCE) upon the 1000th cycle, such potential is the closest observed to the desired value of platinum at (−0.25 V vs. SCE). We subsequently suggest that 3D printing of graphene-based conductive filaments allows for the simple fabrication of energy storage devices with bespoke and conceptual designs to be realised.
Citation
Foster, C. W., Down, M. P., Zhang, Y., Ji, X., Rowley-Neale, S. J., Smith, G. C., Kelly, P. J., & Banks, C. E. (2017). 3D printed graphene based energy storage devices. Scientific Reports, 7, 42233. https://doi.org/10.1038/srep42233
Publisher
Nature Research
Journal
Scientific Reports
Research Unit
DOI
10.1038/srep42233
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
The final publication is available at Springer via http://dx.doi.org/10.1038/srep42233
Series/Report no.
ISSN
2045-2322
EISSN
2045-2322