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Methanol and Ethanol Electrooxidation on PtRu and PtNiCu as Studied by High-Resolution In Situ Electrochemical NMR Spectroscopy with Interdigitated Electrodes

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Abstract

Following a recent short communication (J. Electroanal. Chem. 769 (2016) 1–4) in which we demonstrated the feasibility and proof-of-concept results of using interdigitated metal electrodes to achieve high-resolution in situ electrochemical solution NMR for studying electrochemically driven reactions such as those involved in electrolysis and electrocatalysis, we report herein a more detailed technical description of the technique and its application to studying methanol and ethanol electrooxidation on PtRu and PtNiCu electrocatalysts.

13C NMR data from ethanol oxidation with a PtNiCu catalyst. (a) C NMR resonances as a function of time, showing the growth of all product peaks. (b) Comparison of the final spectra of ethanol oxidation reactions performed with PtNiCu (black, upper) and PtRu (blue, lower) catalysts. Differences in the relative intensities of the product peaks can be identified.

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Acknowledgements

This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences Catalysis Program under Award Number DE-FG02-07ER15895. EGS also thanks financial support from the Georgetown College and Graduate School. We also appreciate the help of Jasper Nijdam at GNuLab at Georgetown University for assistance with plasma deposition.

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  1. Department of Chemistry, Georgetown University, 37th & O Streets, Washington DC, NW, 20057, USA

    Eric G. Sorte, Safia Jilani & YuYe J. Tong

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  1. Eric G. Sorte
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  2. Safia Jilani
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  3. YuYe J. Tong
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Correspondence to Eric G. Sorte or YuYe J. Tong.

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Sorte, E.G., Jilani, S. & Tong, Y.J. Methanol and Ethanol Electrooxidation on PtRu and PtNiCu as Studied by High-Resolution In Situ Electrochemical NMR Spectroscopy with Interdigitated Electrodes. Electrocatalysis 8, 95–102 (2017). https://doi.org/10.1007/s12678-016-0344-8

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