摘要
利用Fe3+和[Fe(CN)6]4-溶液,采用顺序化学沉积法制得普鲁士蓝/多壁碳纳米管(PB/MWNTs)修饰电极。FTIR、SEM等结构表征表明普鲁士蓝(PB)直接沉积在多壁碳纳米管(MWNTs)的表面。电化学研究表明:PB/MWNTs修饰电极上的电子传递过程受支持电解液中K+、H+浓度影响。在pH=5.6、K+浓度为0.2 mol/L的KOH-KH2PO4-KCl支持电解液中,电极表现出优异的电化学稳定性,且可用于定量测定H2O2浓度。
A modified glass carbon(GC) electrode with Prussian blue(PB)/multi-walled carbon nanotubes(MWNTs) was fabricated in FeCl3 and K4[Fe(CN)6] solutions by a new sequential deposition based method.FT-IR,SEM characterization results of the prepared PB/MWNTs/GC electrode showed that PB crystallites were finely attached on the MWNTs.The results of cyclic voltammetry(CV) indicated that the concentration of K+ and H+ in the supporting electrolyte had an effect on the electronic transportation on PB/MWNTs/GC electrode.In the following conditions:pH = 5.6 and c(K+) = 0.2 mol/L,PB/MWNTs/GC electrode exhibited an excellent electrochemical stability,which could be used for the determination of H2O2 concentration.
出处
《现代化工》
CAS
CSCD
北大核心
2007年第z1期246-248,250,共4页
Modern Chemical Industry
基金
北京市自然科学基金(2073027)
