Voltammetric, dynamic light scattering (DLS) and electrophoretic mobility characterization of FeS nanoparticles (NPs) in different electrolyte solutions

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• 作者：Marija Marguš ; Ivana Milanović ; Irena Ciglenečki
• 关键词：Volatmmetry ; FeS nanoparticles ; DLS ; Ionic strength conditions ; Nanoparticle size ranges ; ζ ; potential ; Potential
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：20
• 期：11
• 页码：2981-2989
• 全文大小：1,645 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Analytical Chemistry
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  Condensed Matter
  Electronic and Computer Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1433-0768
• 卷排序：20

文摘

Voltammetric response of FeS nanoparticles (NPs) dispersion based on the oxidation exchange voltammetric peak between Hg electrode and FeS NPs at around −0.45 V was studied in different electrolytes (chloride, acetate, perchlorate). Several experiments were designed to monitor in parallel to voltammetric measurements, physicochemical and surface characteristics of the formed FeS NPs (ζ-potential and size) under same experimental conditions. It was shown that recorded voltammetric peak produced by FeS NPs from bulk solution is changing with electrolyte concentration and composition, as well as observed size and ζ-potential of the studied FeS NPs. Our measurements indicate relationship between measured ζ-potential of FeS NPs dispersions and recorded voltametric peak charge and potential, pointing to a promising potential of voltammetry in characterization of physicochemical and surface chemistry features of metal sulphide NPs in water environment. The best voltammetric response is obtained in presence of small NPs, <100 nm.