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000000816 084__ $$2WoS$$aElectrochemistry
000000816 1001_ $$0P:(DE-HGF)0$$aDima, G. E.$$b0
000000816 245__ $$aNitrate reduction on single-crystal platinum electrodes
000000816 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2005
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000000816 440_0 $$01776$$aElectrochimica Acta$$v50$$x0013-4686
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000000816 520__ $$aThe structure sensitivity of the reduction of nitrate has been studied on a series of single-crystal platinum electrodes by cyclic voltammmetry and in situ FTIRAS in sulfuric and perchloric acid solutions. The nitrate reduction is a structure-sensitive reaction on single-crystal platinum electrodes. However, this structure sensitivity is essentially controlled by other species (hydrogen, sulfate) that interact strongly with the electrode surface rather than by a structure-sensitive nitrate adsorption, dissociation or reduction.Voltammetric and spectroscopic data point to adsorbed nitric oxide (NO) as the main stable intermediate of the nitrate reduction to ammonia. No evidence for the formation of N2O was found. On surfaces with sufficiently wide (111) terraces in the absence of specifically adsorbed sulfate, an oxidizable nitrate reduction product is detected voltammetrically, which may tentatively be attributed to the formation of a small amount of hydroxylamine earlier during the voltammetric scan. (C) 2005 Elsevier Ltd. All rights reserved.
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000000816 65320 $$2Author$$anitrate reduction
000000816 65320 $$2Author$$aplatinum single-crystal electrodes
000000816 65320 $$2Author$$anitric oxide
000000816 65320 $$2Author$$aFTIR
000000816 65320 $$2Author$$aelectrocatalysis
000000816 7001_ $$0P:(DE-Juel1)128800$$aBeltramo, G. L.$$b1$$uFZJ
000000816 7001_ $$0P:(DE-HGF)0$$aKoper, M. T. M.$$b2
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