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The Reactivity and Stability of Polyoxometalate Water Oxidation Electrocatalysts
Article

Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process

1
Department of Engineering ‘Enzo Ferrari’, University of Modena and Reggio Emilia, Via Vivarelli 10, 41125 Modena, Italy
2
Department of Chemistry, University of Firenze, via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy
*
Authors to whom correspondence should be addressed.
Academic Editor: Mark Symes
Molecules 2020, 25(17), 3988; https://doi.org/10.3390/molecules25173988
Received: 2 July 2020 / Revised: 20 August 2020 / Accepted: 27 August 2020 / Published: 1 September 2020
(This article belongs to the Special Issue Electrocatalytic Water Splitting)
Results are presented concerning the influence on the water splitting process of enantiopure tartaric acid present in bulk solution. Stainless steel and electrodeposited nickel are used as working electrode (WE) surface. The latter is obtained by electrodeposition on the two poles of a magnet. The influence and role played by the chiral compound in solution has been assessed by comparing the current values, in cyclic voltammetry (CV) experiments, recorded in the potential range at which oxygen evolution reaction (OER) occurs. In the case of tartaric acid and nickel WE a spin polarization of about 4% is found. The use of the chiral environment (bulk solution) and ferromagnetic chiral Ni electrode allows for observing the OER at a more favorable potential: About 50 mV (i.e., a cathodic, less positive, shift of the potential at which the oxygen evolution is observed). View Full-Text
Keywords: spin dependent electrochemistry; water splitting; nickel; chirality; OER spin dependent electrochemistry; water splitting; nickel; chirality; OER
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MDPI and ACS Style

Gazzotti, M.; Stefani, A.; Bonechi, M.; Giurlani, W.; Innocenti, M.; Fontanesi, C. Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process. Molecules 2020, 25, 3988. https://doi.org/10.3390/molecules25173988

AMA Style

Gazzotti M, Stefani A, Bonechi M, Giurlani W, Innocenti M, Fontanesi C. Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process. Molecules. 2020; 25(17):3988. https://doi.org/10.3390/molecules25173988

Chicago/Turabian Style

Gazzotti, Mirko; Stefani, Andrea; Bonechi, Marco; Giurlani, Walter; Innocenti, Massimo; Fontanesi, Claudio. 2020. "Influence of Chiral Compounds on the Oxygen Evolution Reaction (OER) in the Water Splitting Process" Molecules 25, no. 17: 3988. https://doi.org/10.3390/molecules25173988

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