Electrochemical and in situ spectroelectrochemical studies of gold nanoparticles immobilized Nafion matrix modified electrode

Bulletin of materials science

S Sivagami¹  S Thangavel¹  T Selvaraju¹  R Ramaraj¹ 

[1] School of Chemistry, Madurai Kamaraj University, Madurai 625 021, India$$School of Chemistry, Madurai Kamaraj University, Madurai 625 021, IndiaSchool of Chemistry, Madurai Kamaraj University, Madurai 625 021, India$$

关键词: Gold nanoparticles;    Nafion;    modified electrode;    phenosafranine;    in situ spectroelectrochemistry.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Electrochemical and in situ spectroelectrochemical behaviours of phenosafranine (PS⁺) were studied at the gold nanoparticles (Au_Nps) immobilized Nafion (Nf) film coated glassy carbon (GC) and indium tin oxide (ITO) electrodes. Cyclic voltammetric studies showed that the PS⁺ molecules strongly interact with the Au_Nps immobilized in the Nf matrix through the electrostatic interaction. The presence of Au_Nps in the Nf film improved the electrochemical characteristics of the incorporated dye molecules. The emission spectra of Nfâ€�?�Au_Npsâ€�?�PS⁺ films showed that the incorporated PS⁺ was quenched by Au_Nps and it could be explained based on the electronic interaction between the Au_Nps and PS⁺ molecules. The in situ spectroelectrochemical study showed an improved electrochemical characteristic of the incorporated PS⁺ molecules at the ITO/Nfâ€�?�Au_Nps electrode when compared to the ITO/Nf electrode.

【 授权许可】

Unknown