Nickel as Electrocatalyst for CO₍₂₎ Reduction: Effect of Temperature, Potential, Partial Pressure, and Electrolyte Composition.

ABSTRACT: Electrochemical CO₂ reduction on Ni has recently been shown to have the unique ability to produce longer hydrocarbon chains in small but measurable amounts. However, the effects of the many parameters of this reaction remain to be studied in more detail. Here, we have investigated the effect of temperature, bulk CO₂ concentration, potential, the reactant, cations, and anions on the formation of hydrocarbons via a chain growth mechanism on Ni. We show that temperature increases the activity but also the formation of coke, which deactivates the catalyst. The selectivity and thus the chain growth probability is mainly affected by the potential and the electrolyte composition. Remarkably, CO reduction shows lower activity but a higher chain growth probability than CO

SUBMITTER: Vos RE 

PROVIDER: S-EPMC11002821 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature