Electrocatalytic activity for dopamine of silver nanoparticle onto graphene/poly(1,8-diaminonaphthalene) electrodes

Hung Giap; Huy Nguyen; Van Bui; Dung Nguyen; Mai Nguyen

doi:10.51316/jca.2020.018

Authors

Giap Van Hung Hanoi University of Science and Technology Author
Nguyen Le Huy Hanoi University of Science and Technology Author
Bui Thi Hong Van Hanoi University of Science and Technology Author
Nguyen Tuan Dung Vietnam Academy of Science and Technology Author
Nguyen Thi Tuyet Mai Hanoi University of Science and Technology Author

DOI:

https://doi.org/10.51316/jca.2020.018

Keywords:

Dopamine, Electrocatalytic, Silver nanoparticles, graphene, poly(1,8-diaminonaphthalene)

Abstract

In this research, we report on the synthesis and electrochemical characterization of a poly(1,8-diaminonaphthalene)/graphene composite film which is capable to adsorb Ag⁺ ions toward to the dopamine sensing application. The present of graphene significantly improved the structural morphology and electrochemical activities of the pristine polymer, the adsorption capacity for Ag⁺ ions and the conductivities of the composite were enhanced. The graphene/poly(1,8-diaminonaphthalene)-Ag modified glassy carbon electrode was used to the ability of electrocatalytic activity dopamine in phosphate buffer solution by differential pulse voltammetry. The results open up the path for designing other dopamine sensing based on our novel approach.

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