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Issue 38, 2015
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A straightforward implementation of in situ solution electrochemical 13C NMR spectroscopy for studying reactions on commercial electrocatalysts: ethanol oxidation

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Abstract

Identifying and quantifying electrocatalytic-reaction-generated solution species, be they reaction intermediates or products, are highly desirable in terms of understanding the associated reaction mechanisms. We report herein a straightforward implementation of in situ solution electrochemical 13C NMR spectroscopy for the first time that enables in situ studies of reactions on commercial fuel-cell electrocatalysts (Pt and PtRu blacks). Using ethanol oxidation reaction (EOR) as a working example, we discovered that (1) the complete oxidation of ethanol to CO2 only took place dominantly at the very beginning of a potentiostatic chronoamperometric (CA) measurement and (2) the PtRu had a much higher activity in catalysing oxygen insertion reaction that leads to acetic acid.

Graphical abstract: A straightforward implementation of in situ solution electrochemical 13C NMR spectroscopy for studying reactions on commercial electrocatalysts: ethanol oxidation

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Article information


Submitted
29 Jan 2015
Accepted
02 Apr 2015
First published
02 Apr 2015

This article is Open Access

Chem. Commun., 2015,51, 8086-8088
Article type
Communication
Author version available

A straightforward implementation of in situ solution electrochemical 13C NMR spectroscopy for studying reactions on commercial electrocatalysts: ethanol oxidation

L. Huang, E. G. Sorte, S.-G. Sun and Y. Y. J. Tong, Chem. Commun., 2015, 51, 8086
DOI: 10.1039/C5CC00862J

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