What question did this study set out to answer?

Develop an electrocatalyst system that prevents structural deterioration to maintain high activity and selectivity during extended carbon dioxide reduction to formate.

September 1, 2021SHILAP Revista de lepidopterologíaOpen Access

Stable, active CO2 reduction to formate via redox-modulated stabilization of active sites

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Develop an electrocatalyst system that prevents structural deterioration to maintain high activity and selectivity during extended carbon dioxide reduction to formate.
Synthesized homogeneously alloyed Bi0.1Sn crystals that form active Sn-Bi/SnO2 surfaces in situ to modulate the redox potential of active catalytic sites.
Conducted continuous electrochemical carbon dioxide reduction at a current density of 100 mA cm^-2 and validated production in a zero-gap cation-exchange membrane electrode assembly device.
Combined in operando electrochemical analyses with computational simulations to evaluate the binding energy of the critical *OCHO reaction intermediate.
The Sn-Bi/SnO2 active surface maintained continuous carbon dioxide reduction to formate for 2400 h (100 days) at 100 mA cm^-2 with 95% Faradaic efficiency and an overpotential of ~ -0.65 V.
The cation-exchange membrane electrode assembly device produced a concentrated 3.4 M (15 wt%) formate solution stably across 100 h of continuous operation.

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Implication

Laboratory study demonstrates stable carbon dioxide reduction to formate using bismuth-tin alloys over 2,400 hours, highlighting a viable pathway for long-term industrial carbon upgrading.

Cite This Study

Li et al. (2021) studied this question.

synapsesocial.com/papers/69d860a1d2f7327e70ae3196 https://doi.org/10.1038/s41467-021-25573-9

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Implication

Laboratory study demonstrates stable carbon dioxide reduction to formate using bismuth-tin alloys over 2,400 hours, highlighting a viable pathway for long-term industrial carbon upgrading.

Stable, active CO2 reduction to formate via redox-modulated stabilization of active sites

Key Points

Discussion

Implication

Cite This Study

Stable, active CO2 reduction to formate via redox-modulated stabilization of active sites

Key Points

Discussion

Implication

Cite This Study

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