Amperometric determination of dopamine Ndoped graphene/Au@Pt core-shell nanoparticles modified glassy carbon electrode

DOI

10.2991/icadme-15.2015.286How to use a DOI?

Keywords

Nitrogen-doped graphene, Au@ Pt core-shell nanoparticles, NG/Au@Pt hybrid materials, Dopamine

Abstract

The formation of N-doped graphene (NG) use hydrothermal method with urea as reducing agent and nitrogen source. The surface elemental composition of the catalyst was analyzed through XPS, which showed the atomic ratio of N/C is 5.0%, indicative of the effective N-doping. The Au@Pt core-shell nanoparticles were prepared by seed-mediated growth method, where tens of small Pt nanoparticles aggregated on gold seeds. Finally, the Au@ Pt core-shell nanoparticles was introduced into the interlayers of NG nanosheets to form Au@Pt/NG hybrid materials by sonication technique. The as-prepared Au@Pt/NG hybrid materials modified glassy carbon electrode (Au@Pt/NG/GCE) was first employed for the determination of DA. The DA oxidation current is linear to its concentration in the range of 6.0×10-8 1.3×10-6 M, and the detection limit was found to be 1.0×10-8 (S/N=3).

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xianlan Chen
AU  - Guowei Zhang
AU  - Ling Shi
AU  - Shanqin Pan
AU  - Wei Liu
AU  - Keqiang Xu
PY  - 2015/10
DA  - 2015/10
TI  - Amperometric determination of dopamine Ndoped graphene/Au@Pt core-shell nanoparticles modified glassy carbon electrode
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1544
EP  - 1547
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.286
DO  - 10.2991/icadme-15.2015.286
ID  - Chen2015/10
ER  -