Temperature promotes selectivity during electrochemical CO₂ reduction on NiO:SnO₂ nanofibers.

ABSTRACT: Electrolyzers operate over a range of temperatures; hence, it is crucial to design electrocatalysts that do not compromise the product distribution unless temperature can promote selectivity. This work reports a synthetic approach based on electrospinning to produce NiO:SnO₂ nanofibers (NFs) for selectively reducing CO₂ to formate above room temperature. The NFs comprise compact but disjoined NiO and SnO₂ nanocrystals identified with STEM. The results are attributed to the segregation of NiO and SnO₂ confirmed with XRD. The NFs are evaluated for the CO₂ reduction reaction (CO₂RR) over various temperatures (25, 30, 35, and 40 °C). The highest faradaic efficiencies to formate (FE_HCOO^- ) are reached by NiO

SUBMITTER: Rodriguez-Olguin MA 

PROVIDER: S-EPMC11363033 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature