By a News Reporter-Staff News Editor at Science Letter -- A new study on Hydrogen is now available. According to news reporting originating in Seoul, South Korea, by NewsRx journalists, research stated, "Silicon dioxide thin films are widely used as dielectric layers in microelectronics and can also be engineered on silicon wafers. It seems counterintuitive that electrochemical reactions could occur on such an insulator without relying on tunnelling current."
The news reporters obtained a quote from the research from Seoul National University, "Here we report electrochemistry based on electron transfer through a thin insulating layer of thermally grown silicon dioxide on highly n-doped silicon. Under a negative electrical bias, protons in the silicon dioxide layer were reduced to hydrogen atoms, which served as electron mediators for electrochemical reduction. Palladium nanoparticles were preferentially formed on the dielectric layer and enabled another hydrogen-atom-mediated electrochemistry, as their surfaces retained many electrogenerated hydrogen atoms to act as a 'hydrogen-atom reservoir' for subsequent electrochemical reduction."
According to the news reporters, the research concluded: "By harnessing the precisely controlled electrochemical generation of hydrogen atoms, palladium-copper nanocrystals were synthesized without any surfactant or stabilizer on the silicon dioxide layer."
For more information on this research see: Hydrogen-atom-mediated electrochemistry. Nature Communications, 2013;4():29-36. Nature Communications can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group - www.nature.com/; Nature Communications - www.nature.com/ncomms/)
Our news correspondents report that additional information may be obtained by contacting J.Y. Lee, Seoul National University, Dept. of Elect & Comp Engn, Seoul 151744, South Korea. Additional authors for this research include J.G. Lee, S.H. Lee, M. Seo, L. Piao, J.H. Bae, S.Y. Lim, Y.J. Park and T.D. Chung (see also Hydrogen).
Keywords for this news article include: Asia, Seoul, Gases, Elements, Hydrogen, Minerals, South Korea, Electrochemical, Silicon Dioxide, Electrochemistry, Silicon Compounds, Inorganic Chemicals
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