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New Findings from University of North Carolina in Materials Science and Physical Chemistry Provides New Insights

February 28, 2014

By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Science. According to news originating from Chapel Hill, North Carolina, by NewsRx correspondents, research stated, "Films of iridium(IV) oxide nanopartides (IrOX NPs) become deposited on electrodes from nanoparticle solutions when potentials sufficient to initiate water oxidation are applied. Evidence is given that the film-forming mechanism is nanoparticle precipitation."

Our news journalists obtained a quote from the research from the University of North Carolina, "Following an induction period during which a significant amount of charge is passed, the NPs begin to deposit as islands. It appears that the proton release that accompanies nanoparticle oxidation triggers the nanoparticle electroflocculation and subsequent precipitation. Flocculation from nanoparticle solutions can also be induced by the addition of a chemical oxidant (Ce(IV))."

According to the news editors, the research concluded: "The film formation is followed by cyclic voltammetry (CV), rotated ring disk voltammetry (RRDE), and electrochemical quartz crystal microbalance (eQCM) measurements, supplemented with AFM and SEM microscopies."

For more information on this research see: Formation of Iridium(IV) Oxide (IrOX) Films by Electroflocculation. Langmuir, 2013;29(39):12254-12258. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Langmuir -

The news correspondents report that additional information may be obtained from K.E. Michaux, University of North Carolina, Kenan Labs Chem, Chapel Hill, NC 27599, United States (see also Science).

Keywords for this news article include: Iridium, Science, Chapel Hill, United States, North Carolina, Transition Elements, North and Central America

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Source: Science Letter

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