Abstract
This work investigates the electrochemical behavior of 2-propanol in acidic media on polycrystalline Pt surfaces as an attempt to apply a differential methodology to the analysis and handling of FTIR data in order to achieve a better correlation among electrochemical and spectroscopic signals and help to understand the mechanistic aspects involving the electrooxidation of complex molecules. By assumption that acetone is the main product of 2-propanol oxidation, we have used a simple procedure which consists in the differentiation of integrated absorbancies relative to acetone production. The procedure is justified by the Lambert–Beer law, and the results show a good qualitative correlation between the voltammetric profile and spectroscopic signal corresponding to changes in the moieties of acetone during the voltametric sweep.
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References
Bewick A, Kunimatsu K, Pons BS (1980) Electrochim Acta 25:465
Bittins-Cattaneo B, Wilhelm S, Cattaneo E, Buschmann HW, Vielstich W (1988) Ber Bunsenges Phys Chem 92:1210
Willsau J, Heitbaum J (1985) J Electroanal Chem 194:27
Beden B, Morin MC, Hahn F, Lamy C (1987) J Electroanal Chem 229:353
Iwasita T, Nart FC (1997) Prog Surf Sci 55:271
Iwasita T, Hoster H, John-Anacker A, Lin WF, Vielstich W (2000) Langmuir 16:522
Léger JM, Rousseau S, Coutanceau C, Hahn F, Lamy C (2005) Electrochim Acta 50:5118
Camara GA, Giz MJ (2009) Electrochem Commun 11:1586
Rodriguéz JL, Pastor E, Xia XH, Iwasita T (2000) Langmuir 16:5479
Farias MJS, Camara GA, Tanaka AA, Iwasita T (2007) J Electroanal Chem 600:236
Rodrigues IA, Bergamaski K, Nart FC (2003) J Electrochem Soc 150:E89
Rodrigues IA, de Souza JPI, Pastor E, Nart FC (1997) Langmuir 13:6829
Pastor E, González S, Arvia AJ (1995) J Electroanal Chem 395:233
Sun SG, Lin Y (1996) Electrochim Acta 41:693
Sun SG, Yang DF, Tian ZW (1990) J Electroanal Chem 289:177
Gao P, Chang SC, Zhou Z, Weaver MJ (1989) J Electroanal Chem 212:161
Leung LWH, Weaver MJ (1990) Langmuir 6:323
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The authors acknowledge financial assistance from CAPES, CNPq, FUNDECT, and FINEP.
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Reis, R.G.C.S., Martins, C.A. & Camara, G.A. The Electrooxidation of 2-Propanol: An Example of an Alternative Way to Look at In Situ FTIR Data. Electrocatal 1, 116–121 (2010). https://doi.org/10.1007/s12678-010-0018-x
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DOI: https://doi.org/10.1007/s12678-010-0018-x