Table 1 Summary of RDE-GC-MS, RRDE results, and pKe values for selected aldehydes and ketone (−1.2 V vs. RHE on Cu disk, 1600 RPM, 0.1 M NaClO4, 298 K)

From: Unraveling the electrocatalytic reduction mechanism of enols on copper in aqueous media

Aldehydes/ketone

pKe of keto-enol tautomerization

Detected products from enol reduction

Onset potential (V vs. SHE)

Reference

Acetaldehyde

6.23

Ethylene and ethane

~ −1.1

5

Propionaldehyde

5.10

Propene and propane

~ −0.7

62

Acetone

8.33

Not detected

N/A

63

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