Graphene/clay composite electrode formed by exfoliating graphite with Laponite for simultaneous determination of ascorbic acid, dopamine, and uric acid.

Abstr.: Laponite/graphene composite (Lap/G) was prepd. by directly exfoliating graphite with Laponite under mech. grinding. The morphologies and intrinsic phys. properties of Lap/G were characterized by TEM, SEM, and Raman spectroscopy. Electrochem. impedance spectroscopy, cyclic voltammetry, and differential pulse voltammetry were used to study the electrochem. behavior of Lap/G-modified electrodes. The resulting Lap/G composite exhibited good electrocond. combined with electrocatalytic activity towards oxidn. of small biomols. such as dopamine. Also, the resulting Lap/G-modified glassy C electrodes were applied for simultaneous detn. of ascorbic acid, dopamine, and uric acid. Graphical abstr.: [Figure not available: see fulltext.]. [on SciFinder(R)]

Références

Titre
Graphene/clay composite electrode formed by exfoliating graphite with Laponite for simultaneous determination of ascorbic acid, dopamine, and uric acid.
Type de publication
Article de revue
Année de publication
2014
Revue
Monatshefte fuer Chemie
Volume
145
Pagination
1389–1394
ISSN
0026-9247
Soumis le 12 avril 2018