title: Self-assembly of tetrakis (3-trifluoromethylphenoxy) phthalocyaninato cobalt(II) on multiwalled carbon nanotubes and their amperometric sensing application for nitrite.
abstract: In this work, the soluble cobalt phthalocyanine functionalized multiwalled carbon nanotubes (MWCNTs) are synthesized by π-π stacking interaction between tetrakis (3-trifluoromethylphenoxy) phthalocyaninato cobalt(II) (CoPcF) complex and MWCNTs. The physical properties of CoPcF-MWCNTs hybrids are evaluated using spectroscopy (UV-vis, XPS, and Raman) and electron microscopy (TEM and SEM). Subsequently, an amperometric nitrite electrochemical sensor is designed by immobilizing CoPcF-MWCNTs hybrids on the glassy carbon electrode. The immobilized CoPcF complex shows the fast electron transfer rate and excellent electrocatalytic activity for the oxidation of nitrite. Under optimum experimental conditions, the proposed nitrite electrochemical sensor shows the fast response (less than 2 s), wide linear range (9.6 × 10(-8) to 3.4 × 10(-4) M) and low detection limit (6.2 × 10(-8) M) because of the good mass transport, fast electron transfer rate, and excellent electrocatalytic activity.
authors: Jiangsu Key Laboratory of Power Batteries, Laboratory of Electrochemistry, School of Chemistry and Materials Science, Nanjing Normal University, 1# Wenyuan Road, Nanjing 210023, PR China.
authors: Pan
authors: P
authors: Li
authors: Yu
authors: Y
authors: Ding
authors: Ao
authors: A
authors: Wang
authors: Lin
authors: L
authors: Zhou
authors: Shaohua
authors: S
authors: Wei
authors: Yiming
authors: Y
authors: Zhou
authors: Yawen
authors: Y
authors: Tang
authors: Yu
authors: Y
authors: Chen
authors: Chenxin
authors: C
authors: Cai
authors: Tianhong
authors: T
authors: Lu
mesh_terms: D003035:Cobalt / Q000737:chemistry; D004563:Electrochemistry / Q000379:methods*; D007211:Indoles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*
chemical_list: D007211:Indoles; D037742:Nanotubes, Carbon; D009942:Organometallic Compounds; C063633:cobalt phthalocyanine; D003035:Cobalt