Enhancement of Hydrogen Peroxide Reduction Current by an Electrode Modified with Hybrid Polymer/Silica Particles and N,N‐diethyl‐N‐(2‐methoxy‐ethyl)‐N‐methylammonium bis(trifluoromethylsulfonyl)imide

Abstract

The electrochemical reaction of H 2 O 2 was promoted by an electrode modified with N,N-diethyl-N-(2-methoxy-ethyl)-N-methylammonium bis(trifluoromethylsulfonyl)imide (DEME-TFSI) and hybrid polymer/silica particles, which consisted of an ionic liquid-type polymer brush decorated with silica particles (PSiP). The electrode was prepared by dropping an acetonitrile solution of homogeneously dispersed PSiPs and DEME-TFSI on a glassy carbon (GC) electrode and drying. During cyclic voltammetry in the presence of 3.0 mM H 2 O 2 , the reduction current at À 0.400 mV increased from 0.9 to 3.3 μA compared with the unmodified GC electrode, demonstrating that the electrochemical reduction of H 2 O 2 was promoted on the PSiP/DEME-TFSI-modified electrode.