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Transition‐Metal Phosphide/Sulfide Nanocomposites for Effective Electrochemical Non‐Enzymatic Detection of Hydrogen Peroxide
Author(s) -
Wang Caifu,
Zhang Zhonghai
Publication year - 2020
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.202000867
Subject(s) - phosphide , electrocatalyst , nickel sulfide , nanocomposite , sulfide , transition metal , electrochemistry , nickel , materials science , hydrogen peroxide , detection limit , inorganic chemistry , noble metal , metal , chemical engineering , chemistry , nanotechnology , catalysis , electrode , metallurgy , chromatography , organic chemistry , engineering
Abstract In this work, we clearly demonstrate the use of a transition‐metal phosphide/sulfide nanocomposite to set up an electrochemical reduction analysis platform for the sensitive and selective non‐enzymatic detection of H 2 O 2 . With the help of a macroporous nickel foam (NF) as the substrate, the noble‐metal‐free electrocatalyst nanocomposites of Ni 3 P and Ni 3 S 2 were directly synthesized in one step on the surface of the NF. The Ni 3 P‐Ni 3 S 2 /NF based electrochemical sensors present excellent electrocatalytic activity for H 2 O 2 reduction with a detection limit of approximately 0.3 μM and a large detection range, which guarantees the possibility of sensitive and reliable detection of H 2 O 2 .