Adsorption, surface relaxation and electrolyte structure at Pt(111) electrodes in non-aqueous and aqueous acetonitrile electrolytes

Physical Chemistry Chemical Physics : PCCP
Gary S HarlowChristopher A Lucas

Abstract

In situ electrochemical surface X-ray diffraction was employed to investigate the atomic scale structure of the electrochemical double layer and the relaxation at the Pt(111) electrode surface in non-aqueous and aqueous acetonitrile electrolytes under potential control. The X-ray measurements provide insight into the potential-dependence of the interface structure by combining potentiodynamic measurements (X-ray voltammetry) with potentiostatic measurements (crystal truncation rod data) to probe both the metal and electrolyte sides of the interface. The crystal truncation rod measurements are consistent with the potential dependent reorientation of acetonitrile in the absence of water and a parallel arrangement in the presence of water. As acetonitrile concentration increases, the electron density closest to the electrode surface also increases. Finally, Pt surface relaxation in a range of aqueous and non-aqueous solvents is discussed in general with regards to the structure of the electrochemical double layer.

References

Apr 15, 1994·Physical Review. B, Condensed Matter·P J FeibelmanG L Kellogg
Dec 31, 2002·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Frank Endres
Sep 21, 2004·Annual Review of Plant Biology·Klaus Apel, Heribert Hirt
May 26, 2005·Journal of the American Chemical Society·Eli SloutskinMoshe Deutsch
Jun 24, 2005·Acta Crystallographica. Section A, Foundations of Crystallography·C M SchlepützE F Eikenberry
Dec 29, 2006·Small·Florian WeigendJörg Weissmüller
Sep 11, 2009·The Journal of Chemical Physics·Markus MezgerHelmut Dosch
May 24, 2011·Angewandte Chemie·Zhangquan PengPeter G Bruce
Dec 16, 2011·Nature Materials·Peter G BruceJean-Marie Tarascon
Mar 1, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Marco F Suárez-HerreraJuan M Feliu
Nov 8, 2014·Chemical Reviews·Alan C Luntz, Bryan D McCloskey
Aug 19, 2015·The Journal of Physical Chemistry Letters·M SafariL F Nazar
Aug 19, 2015·The Journal of Physical Chemistry Letters·Iain M Aldous, Laurence J Hardwick
Oct 31, 2015·Science·Tao LiuClare P Grey
May 20, 2016·The Journal of Physical Chemistry Letters·Thomas A Galloway, Laurence J Hardwick

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Citations

Feb 6, 2020·Chemical Science·Nicolas Dubouis, Alexis Grimaud
May 5, 2021·Annual Review of Analytical Chemistry·Bruna F Baggio, Yvonne Grunder
Sep 17, 2019·Nano Letters·Shinya NagashimaKeisuke Kishita

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Methods Mentioned

BETA
X-ray

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