Premium
Poly(diallydimethylammonium chloride) Functionalized Graphene/Double‐walled Carbon Nanotube Composite for Amperometric Determination of Nitrite
Author(s) -
Liu Weilu,
Gu Yue,
Sun Guoxiang,
Na Kexin,
Li Cong,
Tang Liu,
Zhang Zhiquan,
Yang Ming
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500358
Subject(s) - amperometry , nitrite , carbon nanotube , graphene , cyclic voltammetry , detection limit , chloride , inorganic chemistry , chemistry , electrode , composite number , materials science , nuclear chemistry , electrochemistry , nanotechnology , organic chemistry , composite material , chromatography , nitrate
Poly(diallydimethylammonium chloride) functionalized graphene/double‐walled carbon nanotube composite (PDDA‐GN/DWCNT) was synthesized by a facile microwave‐assisted reduction reaction. PDDA‐GN/DWCNT exhibits enhanced electrocatalytic activity towards nitrite oxidation. The direct electrooxidation behaviors of nitrite on PDDA‐GN/DWCNT were investigated by cyclic voltammetry, amperometric i‐t curve, and rotating disk electrode experiments. Under the optimum conditions, PDDA‐GN/DWCNT was applied to the quantitative analysis of nitrite with a wide linear range covering 0.07–3000 µM and a low detection limit of 0.03 µM (S/N=3). Moreover, PDDA‐GN/DWCNT exhibits satisfied results in the determination of nitrite that released from breast cancer cells.