Publication result detail

Selective electrocatalysis of reduced graphene oxide towards hydrogen peroxide aiming oxidases-based biosensing: Caution while interpreting

LACINA, K.; KUBESA, O.; VANÝSEK, P.; HORÁČKOVÁ, V.; MORAVEC, Z.; SKLÁDAL, P.

Original Title

Selective electrocatalysis of reduced graphene oxide towards hydrogen peroxide aiming oxidases-based biosensing: Caution while interpreting

English Title

Selective electrocatalysis of reduced graphene oxide towards hydrogen peroxide aiming oxidases-based biosensing: Caution while interpreting

Type

WoS Article

Original Abstract

Graphene is currently often reported as a superior electrochemical (and not only) material. Here we assess critically the often-reported electrocatalytic behaviour of an electrode modified with reduced graphene oxide (rGO) towards H2O2. Two different electrode materials – gold and glassy carbon – were modified with rGO and comparative measurements in the presence of H2O2 and two ordinary electrochemical interferents – ascorbic acid and dopamine – were performed. Neither selectivity nor significant electrocatalytic abilities of rGO modified electrodes were observed. Only the mass transfer was enhanced due to the improvement of the parameters applicable for general electrochemistry on nanoparticles – diffusion layer and electroactive area.

English abstract

Graphene is currently often reported as a superior electrochemical (and not only) material. Here we assess critically the often-reported electrocatalytic behaviour of an electrode modified with reduced graphene oxide (rGO) towards H2O2. Two different electrode materials – gold and glassy carbon – were modified with rGO and comparative measurements in the presence of H2O2 and two ordinary electrochemical interferents – ascorbic acid and dopamine – were performed. Neither selectivity nor significant electrocatalytic abilities of rGO modified electrodes were observed. Only the mass transfer was enhanced due to the improvement of the parameters applicable for general electrochemistry on nanoparticles – diffusion layer and electroactive area.

Keywords

Reduced graphene oxide, electrocatalysis, hydrogen peroxide, enzymatic (bio)sensors, ascorbic acid

Key words in English

Reduced graphene oxide, electrocatalysis, hydrogen peroxide, enzymatic (bio)sensors, ascorbic acid

Authors

LACINA, K.; KUBESA, O.; VANÝSEK, P.; HORÁČKOVÁ, V.; MORAVEC, Z.; SKLÁDAL, P.

RIV year

2018

Released

01.01.2017

Publisher

Elsevier

Location

Velká Británie

ISBN

0013-4686

Periodical

ELECTROCHIMICA ACTA

Volume

223

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

7

Pages count

7

URL

https://www.researchgate.net/publication/311306084_Selective_electrocatalysis_of_reduced_graphene_oxide_towards_hydrogen_peroxide_aiming_oxidases-based_biosensing_Caution_while_interpreting

BibTex

@article{BUT130600,
  author="Karel {Lacina} and Ondřej {Kubesa} and Petr {Vanýsek} and Veronika {Horáčková} and Zdeněk {Moravec} and Petr {Skládal}",
  title="Selective electrocatalysis of reduced graphene oxide towards hydrogen peroxide aiming oxidases-based biosensing: Caution while interpreting",
  journal="ELECTROCHIMICA ACTA",
  year="2017",
  volume="223",
  number="1",
  pages="1--7",
  doi="10.1016/j.electacta.2016.11.172",
  issn="0013-4686",
  url="https://www.researchgate.net/publication/311306084_Selective_electrocatalysis_of_reduced_graphene_oxide_towards_hydrogen_peroxide_aiming_oxidases-based_biosensing_Caution_while_interpreting"
}

Documents

2017 Electrochim Acta 223 (2017) 1-7