Microplasma synthesis of Ni(OH)2 nanoflake array on carbon cloth as an efficient nonenzymatic sensor for glucose

Abstract

In this paper, we report in situ preparation of nickel hydroxide nanoflake array on carbon cloth (Ni(OH)2 NA/CC) by a rapid and simple microplasma method. Using this technique, Ni(OH)2 nanoflake can be prepared on carbon cloth in only 1.5 h at atmospheric pressure and ambient temperature. As an electrode with highly efficient catalytic and non-enzymatic sensor for detecting glucose, such a Ni(OH)2 NA/CC electrode showed excellent electrocatalytic activity with a short response time within 5 s, low detection limit (LOD) of 62 nM (S/N=3), and response sensitivity of 2216.2 mA mM−1 cm−2, meanwhile a satisfactory reproducibility and selectivity.