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000058662 084__ $$2WoS$$aElectrochemistry
000058662 1001_ $$0P:(DE-Juel1)VDB17031$$aHara, M.$$b0$$uFZJ
000058662 245__ $$aPreparation and Electrochemical Characterization of Palladium Single Crystal Electrodes in 0.1 M H2SO4 and 0.1 M HClO4 -  Low Index phases
000058662 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2007
000058662 300__ $$a5733 - 5748
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000058662 440_0 $$01776$$aElectrochimica Acta$$v52$$x0013-4686
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000058662 520__ $$aThe electrochemical properties of Pd(1 1 1), Pd(1 0 0) and Pd(1 1 0) single crystal bead electrodes, prepared by a novel electron beam heating and inductive annealing technique, have been characterized in 0.1 M sulfuric acid and 0.1 M perchloric acid by cyclic voltammetry and chronoamperometry. Hydrogen and (hydrogen) sulfate adsorption as well as surface oxidation were found to depend strongly on the crystallographic orientation and the nature of the electrolyte. The combination of charge displacement and voltammetric experiments allowed the determination of the potentials of zero total charge (E-pztc) of Pd(1 1 1) and Pd(1 0 0). The values of E-pztc in sulfuric acid were found to be more negative than in perchloric acid. The estimation of E-pztc for Pd(1 1 0) was hampered by the superposition with hydrogen absorption. The electro-oxidation of irreversible adsorbed carbon monoxide monolayers was studied on the three low-index Pd electrodes. The onset potential of the CO oxidation reaction follows the sequence Pd(1 0 0) < Pd(1 1 0) < Pd(1 1 1). Chronoamperometric experiments revealed a pronounced structure sensitivity of the reaction kinetics. The processes involved are determined by nucleation of oxygen-containing species on defect (step) sites and by slow diffusion of COads on (1 1 1) terrace sites. (c) 2006 Elsevier Ltd. All rights reserved.
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000058662 65320 $$2Author$$aPd(h k 1) electrodes
000058662 65320 $$2Author$$apotential of zero total charge
000058662 65320 $$2Author$$aCO displacement
000058662 65320 $$2Author$$aelectro-oxidation
000058662 7001_ $$0P:(DE-Juel1)VDB23435$$aLinke, U.$$b1$$uFZJ
000058662 7001_ $$0P:(DE-Juel1)VDB9859$$aWandlowski, Th.$$b2$$uFZJ
000058662 773__ $$0PERI:(DE-600)1483548-4$$a10.1016/j.electacta.2006.11.048$$gVol. 52, p. 5733 - 5748$$p5733 - 5748$$q52<5733 - 5748$$tElectrochimica acta$$v52$$x0013-4686$$y2007
000058662 8567_ $$uhttp://dx.doi.org/10.1016/j.electacta.2006.11.048
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