Integrated energy storage and CO₂ conversion using an aqueous battery with tamed asymmetric reactions.

ABSTRACT: Developing a CO₂-utilization and energy-storage integrated system possesses great advantages for carbon- and energy-intensive industries. Efforts have been made to developing the Zn-CO₂ batteries, but access to long cycling life and low charging voltage remains a grand challenge. Here we unambiguously show such inefficiencies originate from the high-barrier oxygen evolution reaction on charge, and by recharging the battery via oxidation of reducing molecules, Faradaic efficiency-enhanced CO₂ reduction and low-overpotential battery regeneration can be simultaneously achieved. Showcased by using hydrazine oxidation, our battery demonstrates a long life over 1000 hours with a charging voltage as low as 1.2 V. The low charging voltage and formation of gaseous p

SUBMITTER: Liu Y 

PROVIDER: S-EPMC10834454 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature