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One Step Fabrication of Au Nanoparticles‐Ni‐Al Layered Double Hydroxide Composite Film for the Determination of L‐Cysteine
Author(s) -
Wu Liping,
Li Jing,
Zhang HuiMin
Publication year - 2015
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.201400624
Subject(s) - hydroxide , nanoparticle , electrochemistry , fabrication , selectivity , composite number , materials science , electrode , inorganic chemistry , layered double hydroxides , chemical engineering , conductivity , nuclear chemistry , chemistry , nanotechnology , catalysis , organic chemistry , composite material , medicine , alternative medicine , pathology , engineering
This paper reports the fabrication of Au nanoparticles (Au NPs)‐Ni‐Al layerd double hydroxide (LDH) composite film by one step electrochemical deposition on the surface of a glass carbon electrode from the mixture solution containing HAuCl 4 and nitrate salts of Ni 2+ and Al 3+ . Improved conductivity was obtained by Au NPs codeposited on LDH film. The synergic effect of LDHs and Au NPs dramatically improves the performance of L ‐cysteine electro‐oxidation, displaying low oxidation peak potential (0.16 V) and high current response. Thus the electrode was used to sense L ‐cysteine, showing good sensitivity and selectivity.