A few-layered graphene on alumina nanofibers for electrochemical energy conversion

I. Hussainova, R. Ivanov, Serban N. Stamatin, I. V. Anoshkin, Eivind M. Skou, A. G. Nasibulin

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

Abstract A few-layered graphene on the surface of highly aligned alumina nanofibers (ANFs) with an aspect ratio of 10 7 was synthesized in a single-step catalyst-free direct chemical vapor deposition process. The product, graphenated alumina nanofibers (G-ANFs), consisting of the ceramic nanofibers surrounded by the conductive and inert few-layered graphene, is a promising material for electrochemical applications. The synthesized material has been demonstrated to be an excellent electrocatalyst support for Pt particles in fuel cells. A 1.5-fold improvement in the mass activity has been obtained for Pt/G-ANF in comparison to the commercially available Pt/C. The electrochemical stability was found to be outstanding for acidic medium electrochemistry. Their remarkable stability and unique structure opens a new avenue for the use of this material in various electrochemical energy conversion technologies.

OriginalsprogEngelsk
Artikelnummer9749
TidsskriftCarbon
Vol/bind88
Sider (fra-til)157-164
ISSN0008-6223
DOI
StatusUdgivet - jul. 2015

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