NDLI: Polyaniline-Supported Atomic Gold Electrodes: Comparison with Macro Electrodes

Content Provider	Springer Nature Link
Author	Schwartz, Ilana Jonke, Alex P. Josowicz, Mira Janata, Jiří
Copyright Year	2012
Abstract	Under precisely controlled conditions, atomic gold electrodes with even or odd number of Au atoms per polyaniline repeat unit (Pt/PANI/Au N for 0 < N < 7) were prepared. The electrochemical behavior of these new electrodes is compared with that of macro gold and PANI coated platinum electrodes by testing electrochemical oxidation of n-propanol and iso-propanol. This study allowed us to separate the behavior dominated by that of macroscopic gold in strongly alkaline medium and by that of the quantized odd–even effect of atomic gold. Within this overarching scope, there is a specific oxidation pattern attributable to the structural differences between the two isomers of propanol. The significance of this research lies in the recognition of high specific catalytic activity of atomic gold, which is at least three orders of magnitude higher than that of bulk gold for the oxidation of alcohols. It points to a substantial saving of the precious metal without the loss of catalytic activity, which is important in fuel cells and in other energy conversion device applications.
Starting Page	1344
Ending Page	1351
Page Count	8
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	142
Issue Number	11
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2012-09-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Atomic metals Odd–even pattern Propanol electrooxidation Gold electrodes Physical Chemistry Organometallic Chemistry Catalysis Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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