Electrode-adsorption activates trans-[Cr(cyclam)Cl2]+ for electrocatalytic nitrate reduction

Sarah E. Braley; Daniel C. Ashley; Elena Jakubikova; Jeremy M. Smith

doi:10.1039/C9CC08550E

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Electrode-adsorption activates trans-[Cr(cyclam)Cl₂]⁺ for electrocatalytic nitrate reduction†

Sarah E. Braley,^a Daniel C. Ashley,

^b Elena Jakubikova

*^b and Jeremy M. Smith

*^a

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* Corresponding authors

^a Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana 47405, USA
E-mail: smith962@indiana.edu

^b Department of Chemistry, North Carolina State University, 2620 Yarbrough Dr, Raleigh, NC 27695, USA

Abstract

Cyclic voltammetry reveals that aqueous trans-[Cr(cyclam)Cl₂]⁺ is reversibly reduced at a mercury electrode, with a small prewave suggesting an adsorptive interaction between the complex and electrode surface. A catalytic current is observed in the presence of excess nitrate, with the onset potential for catalysis at the prewave. Nitrate is electrocatalytically reduced to nitrite, with preliminary mechanistic investigations implicating a chromium oxo intermediate.

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Correction: Electrode-adsorption activates trans-[Cr(cyclam)Cl2]+ for electrocat…

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Article information

DOI: https://doi.org/10.1039/C9CC08550E
Article type: Communication
Submitted: 04 Nov 2019
Accepted: 05 Dec 2019
First published: 05 Dec 2019

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Chem. Commun., 2020,56, 603-606

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Electrode-adsorption activates trans-[Cr(cyclam)Cl₂]⁺ for electrocatalytic nitrate reduction

S. E. Braley, D. C. Ashley, E. Jakubikova and J. M. Smith, Chem. Commun., 2020, 56, 603 DOI: 10.1039/C9CC08550E

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