Mechanism of nitrate electroreduction on Pt(100)

Molodkina, E. B.; Botryakova, Inna G.; Данилов, А. И.; Souza-Garcia, Janaína; Feliu, Juan M.

doi:10.1134/s1023193512020115

Cited by 28 publications

(36 citation statements)

References 34 publications

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“…It was shown in Ref. [31] that in nitratecontaining solutions anodic peak at 0.78 V corresponds to NH 3 or NH 2 OH oxidation to NO or NO 3 -. However, the nitrate reduction to NO occurs at 0.7-0.8 V during negative-going potential sweep (the peak centered at 0.74 V) but not at 0.6 V (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Attention to these processes does not wane due to its fundamental and applied importance. As the reduction of nitrogen-containing compounds is a structure-sensitive process, the investigations performed at single crystal electrodes are of greatest interest [1][2][3][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. The use of the electrodes with clearly characterized surface structure allows revealing the correlations between electrochemical activity of adsorption sites and their structure.…”

Section: Introductionmentioning

confidence: 99%

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Redox transformations of adsorbed NO molecules on a Pt(100) electrode

et al. 2013

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Electrochemical behaviour of adsorbed NO molecules on Pt(100) electrode has been studied in perchloric acid solutions by means of cyclic voltammetry. According to literature data, saturated NO adlayer with coverage of ca. 0.5 ML is formed at open circuit conditions in nitrite solution as a result of disproportion reaction. The adlayer is stable in the range of 0.4-0.9 V, NO molecules are oxidized at 0.9-1.1 V and can be reduced to ammonia at potentials less than 0.4 V. Stability of the adlayer depends on surface coverage and extent of the ordering. Unsaturated NO adlayer demonstrates redox transformations NO↔NH 3 at 0.5-0.8 V.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Redox transformations of adsorbed NO molecules on a Pt(100) electrode

et al. 2013

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“…This behavior is largely known in the literature. [12][13][14] In Figure 3b, we can clearly observe the redox pair C 3 /A 3 (at ca. 0.81/ca.…”

Section: Electrochemical Behaviormentioning

confidence: 93%

Electrochemical Deposition of the Single Phase TlxCu3 – xSe2 Thin Films

Lucas¹,

Mascaro²

2018

J. Braz. Chem. Soc.

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In spite of selenide semiconductors having a wide application area, TlCu 2 Se 2 (TCSe) is poorly studied and its synthesis by non-vacuum or thermic methodology in film form is non-existent. Generally, the main problems of applying these TCSe compounds are related to complicated single phase growth, and the great time consuming and non-scalable fabrication method. In this work, the facile, fast, scalable and new electrochemical deposition of this material was proposed as a workaround for these main problems and obtaining single phase thin film. Thus, the electrodeposited Tl x Cu 3 -x Se 2 films were characterized by scanning electron microscopy, X-ray diffraction (with Rietveld refinement) and energy dispersive X-ray spectroscopy. They showed interesting variation of composition (x =1.1, 1.2, and 1.25) and morphology as function of the electrodeposition potential, electrolytic bath temperature and thermal treatment.

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“…The results of a detailed study of the nitrate reduction mechanism at the Pt(100) and Pt(100)+Cu electrodes were reported in [24,25]. It was shown that modification of Pt(100) with Cu adatoms also produces a significant effect on the kinetics of nitrate and nitrite electroreduction as compared with unmodified electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, there is a possibility to establish a correlation between the structure of adsorption sites and their catalytic activity [17][18][19][20][21][22][23][24][25][26][27][28][29]. Our previous studies of nitrate reduction on Pt(111) and Pt(111) + Cu electrodes [22] have shown that sulfate anions block the adsorption sites on the surface of the modified electrode, thus hindering the adsorption of nitrate anions and their reduction.…”

Section: Introductionmentioning

confidence: 99%

Cu UPD at Pt(100) and stepped faces Pt(610), Pt(410) of platinum single crystal electrodes

2015

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The processes of adsorption/desorption of copper adatoms on the basal Pt(100) face and stepped Pt(610), Pt(410) surfaces have been studied in perchloric acid solution by cyclic voltammetry. It has been shown that the positions of the Cu stripping peaks are determined by perfection of the adlayer. The "island" model is suggested to describe electrochemical behavior of the Pt(hkl)+Cuad system. Obtained results are important for target modification of shape-controlled nanoparticles that are used in electrocatalysis.

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Mechanism of nitrate electroreduction on Pt(100)

Cited by 28 publications

References 34 publications

Redox transformations of adsorbed NO molecules on a Pt(100) electrode

Redox transformations of adsorbed NO molecules on a Pt(100) electrode

Electrochemical Deposition of the Single Phase TlxCu3 – xSe2 Thin Films

Cu UPD at Pt(100) and stepped faces Pt(610), Pt(410) of platinum single crystal electrodes

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