Electrolytic Reduction of Organic Compounds at Carbon Cathodes

Swann, Sherlock; Chen, C.‐Y.; Kerfman, H. D.

doi:10.1149/1.2779629

Cited by 10 publications

(3 citation statements)

References 8 publications

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“…With adding 1 mM ligand, a small diffusional reductive wave appears beginning from −0.3 V, which is consistent with reduction of the CN bond in the free oxime. 39,40 With adding 1 mM synthetic Cu(II) oxime complex, the wave for reduction of the free oxime disappears; instead, a dramatic current enhancement was observed above background, beginning from −0.42 V, which is due to the catalytic water reduction by the electrodeposited copper (see below). During the reverse scan, there is clear evidence for the reoxidation of the interfacial copper at 0.35−0.7 V (Figure 2A, inset).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

A Highly Active and Robust Copper-Based Electrocatalyst toward Hydrogen Evolution Reaction with Low Overpotential in Neutral Solution

et al. 2016

ACS Appl. Mater. Interfaces

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Although significant progress has been made recently, copper-based materials have long been considered to be ineffective catalysts toward the hydrogen evolution reaction (HER), in most cases, requiring high overpotentials more than 300 mV. We report here that a Cu(0)-based nanoparticle film electrodeposited in situ from a Cu(II) oxime complex can act as a highly active and robust HER electrocatalyst in neutral phosphate buffer solution. The as-prepared nanoparticle film is of poor crystallization, which incorporates significant amounts of oxime ligand residues and buffer anions PO. The proposed mechanism suggests that the Cu(0)-based nanoparticle film is activated with incorporated or adsorbed PO anions and the PO anions-anchored sites might serve as the actual catalytic active sites with efficient proton transport mediators. Catalysis occurs with a low onset overpotential (η) of 65 mV, and a current density of 1 mA/cm can be achieved with η = 120 mV. The nanoparticle film shows an excellent catalytic durability with slightly rising current density during electrolysis, presumably due to further incorporation or adsorption of PO anions in the process. This electrocatalyst not only forms in situ from earth-abundant materials but also operates in neutral water with low overpotential and high stability.

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Section: ■ Results and Discussionmentioning

confidence: 99%

A Highly Active and Robust Copper-Based Electrocatalyst toward Hydrogen Evolution Reaction with Low Overpotential in Neutral Solution

et al. 2016

ACS Appl. Mater. Interfaces

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“…The electrolytic reduction of maleic acid in acidic media at a Pb cathode in the presence of metal citrate complexes of Co, Ni, Cu, and Mn has been studied . Reduction of maleic acid at Ti/ceramicTiO 2 under galvanostatic and cyclic voltametric conditions has been examined .…”

Section: Introductionmentioning

confidence: 99%

Reduction of Maleic Acid to Succinic Acid on Titanium Cathode

Muzumdar

Sawant

Pangarkar

2004

Org. Process Res. Dev.

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Electrochemical reduction of maleic acid to succinic acid has been studied. The effect of (i) temperature, (ii) current density, (iii) concentration of H 2 SO 4 , and (iv) hydrodynamic conditions on conversion of maleic acid and current efficiency has been studied. The reaction was best carried out electrochemically at 40 °C at a current density of 625 A m -2 . The effect of recycling the electrolyte, on conversion and current efficiency, has been reported. Conversion of maleic acid and current efficiency are affected marginally up to the fifth reuse. A material balance has been presented for these recycle studies.

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“…Azo compounds were reduced easily to the corresponding hydrazo compounds, or cleaved to two molecules of the corresponding amines, in either basic or acidic catholytes at many different cathodes, including platinum. Azobenzene, for example, has been reduced to hydrazobenzene, benzidine, and aniline (30,328). Coke has been found to be an efficient cathode for this reduction (328).…”

Section: Azoxy Compoundsmentioning

confidence: 99%