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ITO Electrode Modified by α‐K 6 [P 2 W 18 O 62 ] Hybrid Nanofibers for Nitrite Determination
Author(s) -
Cao Fei,
Guo Shu,
Ma Huiyan,
Gong Jian
Publication year - 2012
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.201100613
Subject(s) - vinyl alcohol , nanofiber , electrospinning , materials science , electrode , indium tin oxide , cyclic voltammetry , nitrite , chemical engineering , electrochemistry , inorganic chemistry , nanotechnology , chemistry , polymer , composite material , organic chemistry , layer (electronics) , nitrate , engineering
A promising nitrite sensor based on one‐dimensional polyoxometalate hybrid nanofibers was prepared and developed by electrospinning of a mixture of poly(vinyl alcohol) and α‐K 6 [P 2 W 18 O 62 ]⋅14H 2 O (P 2 W 18 ) onto the surface of an indium tin oxide (ITO) electrode. After thermal crosslinking, the P 2 W 18 hybrid nanofibers are insoluble in aqueous solutions even after a period of 24 hours, which ensures the electrochemical stability of the P 2 W 18 hybrid nanofiber‐modified ITO electrode. The cyclic voltammetry results have demonstrated that the P 2 W 18 hybrid nanofiber‐modified ITO electrode exhibits excellent electrocatalytic activity toward the reduction of nitrite in acidic solutions. Additionally, long‐term stability and reproducibility have been observed.