Direct fabritcation of 3D graphene on nanoporous anodic alumina by plasma-enhanced chemical vapour deposition
| dc.contributor.author | Zhan, Hualin | |
| dc.contributor.author | Garrett, David | |
| dc.contributor.author | Apollo, Nicholas | |
| dc.contributor.author | Ganesan, Kumaravelu | |
| dc.contributor.author | Lau, Desmond | |
| dc.contributor.author | Prawer, Steven | |
| dc.contributor.author | Cervenka, Jiri | |
| dc.date.accessioned | 2016-02-05T01:29:53Z | |
| dc.date.available | 2016-02-05T01:29:53Z | |
| dc.date.issued | 2016-01-25 | |
| dc.description.abstract | High surface area electrode materials are of interest for a wide range of potential applications such as super-capacitors and electrochemical cells. This paper describes a fabrication method of threedimensional (3D) graphene conformally coated on nanoporous insulating substrate with uniform nanopore size. 3D graphene films were formed by controlled graphitization of diamond-like amorphous carbon precursor films, deposited by plasma-enhanced chemical vapour deposition (PECVD). Plasma-assisted graphitization was found to produce better quality graphene than a simple thermal graphitization process. The resulting 3D graphene/amorphous carbon/alumina structure has a very high surface area, good electrical conductivity and exhibits excellent chemically stability, providing a good material platform for electrochemical applications. Consequently very large electrochemical capacitance values, as high as 2.1 mF for a sample of 10 mm3, were achieved. The electrochemical capacitance of the material exhibits a dependence on bias voltage, a phenomenon observed by other groups when studying graphene quantum capacitance. The plasma-assisted graphitization, which dominates the graphitization process, is analyzed and discussed in detail. | en_US |
| dc.identifier.citation | Zhan, H., Garrett, D. J., Apollo, N. V., Ganesan, K., Lau, D., Prawer, S., & Cervenka, J. (2016). Direct fabrication of 3D graphene on nanoporous anodic alumina by plasma-enhanced chemical vapor deposition. Scientific Reports, 6, 19822. http://doi.org/10.1038/srep19822 | en_US |
| dc.identifier.issn | 2045-2322 | |
| dc.identifier.uri | http://repository.bionicsinstitute.org:8080/handle/123456789/175 | |
| dc.language.iso | en | en_US |
| dc.publisher | Scientific Reports | en_US |
| dc.relation.ispartofseries | 6;19822 | |
| dc.title | Direct fabritcation of 3D graphene on nanoporous anodic alumina by plasma-enhanced chemical vapour deposition | en_US |
| dc.type | Article | en_US |