NDLI: Electrochemical sensing platform for hydrogen peroxide using amorphous FeNiPt nanostructures

Content Provider	Royal Society of Chemistry (RSC)
Author	Liu, Haiqing Liu, Di Wen, Ming Tian, Yang Zhang, Feng
Copyright Year	2010
Abstract	Amorphous ternary FeNiPt nanomaterials with tunable length are reported for constructing the electrochemical sensing platform, in which hydrogen peroxide (H2O2) is selected as a model target. It is found that amorphous FeNiPt nanostructures, in particular, the FeNiPt nanorods with large axial-ratio (FeNiPt-NRL) exhibit the enhanced electrocatalytic activity towards both the oxidation and reduction of H2O2. Meanwhile, the comparable corrosion potential Ecorr and lower corrosion current Icorr are observed at GC electrodes modified with FeNiPt-NRL, revealing the good stability of the FeNiPt-NRL surface. On the basis of these results, H2O2 is cathodically determined at glassy carbon (GC) electrodes with FeNiPt-NRL with relatively high selectivity at the appropriate potential of 0 V vs. Ag\|AgCl. On the other hand, the sensitivity of the anodic H2O2 detection at the same electrode is achieved to be 2.45 mA cm−2 mM−1, which is 4-fold larger than that of the cathodic detection and those Pt nanoparticles-based H2O2 determination, and the detection limit is also developed to 40 nM. The dynamic linear range is broadened from 100 nM to 30 mM, which is wider than those H2O2 detection based on Pt nanoparticles and binary Pt alloys. In addition, electrochemical results show the high stability and good reproducibility for the present H2O2 sensor. The striking analytical performance combined with the intrinsic properties of amorphous FeNiPt nanomaterials provides a promising technique for the development of non-enzyme H2O2 and other molecule sensors with high sensitivity, broad dynamic linear range, long stability, and good reproducibility.
Starting Page	143
Ending Page	148
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	2
Issue Number	2
Journal	Analytical Methods
DOI	10.1039/b9ay00209j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrogen peroxide Electrode Corrosion Electrochemistry Nanomaterials Carbon
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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