Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/71661

TitleBio-inspired deposition of electrochemically exfoliated graphene layers for electrical resistance heating applications
Author(s)Utech, Toni
Pötschke, Petra
Simon, Frank
Janke, Andreas
Kettner, Hannes
Paiva, M. C.
Zimmerer, Cordelia
Keywordselectrochemically exfoliated graphene
electrical conductivity
surface resistance
dopamine, poly(dopamine)
transparency
Joule-Heating
dopamine
poly(dopamine)
Issue date2020
PublisherIOP Publishing Ltd
JournalNano Express
CitationUtech, T., Pötschke, P., Simon, F., Janke, A., Kettner, H., Paiva, M., & Zimmerer, C. (2020). Bio-inspired deposition of electrochemically exfoliated graphene layers for electrical resistance heating applications. Nano Express, 1(3), 030032. doi: 10.1088/2632-959x/abce05
Abstract(s)Electrochemically exfoliated graphene (eeG)layers possess a variety of potential applications, e.g. as susceptor material for contactless induction heating in dynamic electro-magnetic fields, and as flexible and transparent electrode or resistivity heating elements. Spray coating of eeG dispersions was investigated in detail as a simple and fast method to deposit both, thin conducting layers and ring structures on polycarbonate substrates. The spray coating process was examined by systematic variation of dispersion concentration and volume applied to heated substrates. Properties of the obtained layers were characterized by UV-VIS spectroscopy, SEM and Confocal Scanning Microscopy. Electrical conductivity of eeG ring structures was measured using micro-four-point measurements. Modification of eeG with poly(dopamine) and post-thermal treatment yields in the reduction of the oxidized graphene proportion, an increase in electrical conductivity, and mechanical stabilization of the deposited thin layers. The chemical composition of modified eeG layer was analyzed via x-ray photoelectron spectroscopy pointing to the reductive behavior of poly(dopamine). Application oriented experiments demonstrate the direct electric current heating (Joule-Heating) effect of spray-coated eeG layers.
TypeArticle
URIhttps://hdl.handle.net/1822/71661
DOI10.1088/2632-959X/abce05
ISSN2632-959X
Publisher versionhttps://iopscience.iop.org/article/10.1088/2632-959X/abce05
Peer-Reviewedyes
AccessOpen access
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

Files in This Item:
File Description SizeFormat 
Cordélia_Utech_2020_Nano_Express_1_030032.pdf3,44 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID