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High‐Performance Non‐Enzyme Hydrogen Peroxide Detection in Neutral Solution: Using a Nickel Borate Nanoarray as a 3D Electrochemical Sensor
Author(s) -
Wang Zao,
Xie Fengyu,
Liu Zhiang,
Du Gu,
Asiri Abdullah M.,
Sun Xuping
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704038
Subject(s) - hydrogen peroxide , detection limit , catalysis , electrochemistry , nickel , electrode , boron , materials science , electrochemical gas sensor , chemical engineering , inorganic chemistry , nanotechnology , chemistry , chromatography , organic chemistry , metallurgy , engineering
It is highly attractive to construct natural enzyme‐free nanoarray architecture as a 3D catalyst for hydrogen peroxide detection due to its great specific surface area and easy accessibility to target molecules. In this communication, we demonstrate that nickel borate nanoarray supported on carbon cloth (Ni−Bi/CC) behaves as an efficient catalyst electrode for H 2 O 2 electro‐reduction in neutral media. As a non‐enzymatic electrochemical H 2 O 2 sensor, such Ni−Bi/CC shows superior sensing performances with a fast response time (less than 3 s), a low detection limit (0.85 n m , S/ N =3), and a high sensitivity (18320 μA m m cm −2 ). Importantly, it also demonstrates favourable reproducibility and long‐term stability.