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In‐situ Immobilization of a Polyoxometalate Metal‐Organic Framework ( NENU ‐3) on Functionalized Reduced Graphene Oxide for Hydrazine Sensing
Author(s) -
Liang Cuiyuan,
Wang Xin,
Yu Dexin,
Guo Wei,
Zhang Feng,
Qu Fengyu
Publication year - 2021
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.202100314
Subject(s) - polyoxometalate , chemistry , hydrazine (antidepressant) , graphene , detection limit , electrochemistry , oxide , amperometry , linear range , metal , electrode , combinatorial chemistry , inorganic chemistry , polymer chemistry , nuclear chemistry , nanotechnology , organic chemistry , chromatography , catalysis , materials science
Main observation and conclusion Detection of hydrazine originated from electrochemical media has recently gained considerable attention in the sensing field. Herein, to improve electron transfer capacity, a polyoxometalate metal‐organic framework (POMOF, NENU‐3) is in‐situ nucleated onto the carboxyl functionalized reduced graphene oxide (CFG) (NENU‐3/CFG, abbreviation N3/CFG). The N3/CFG supported onto carbon cloth electrodes (CCEs) has been investigated for hydrazine detection. The amperometric results display that the POMOF/CFG to hydrazine has a broad linear range (0.09—362.5 μmol/L) and low detection limit (24 nmol/L). In addition, the POMOF/CFG‐based sensors possess good anti‐interference capability, boosted stability and feasibility. Furthermore, when applied to the detection of practical samples, acceptable relative recoveries of 96.26%—107.30% are obtained.