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Visible-light-driven CO2 photoreduction over atomically strained indium sites in ambient air
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Visible-light-driven CO2 photoreduction over atomically strained indium sites in ambient air
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Journal Article
Visible-light-driven CO2 photoreduction over atomically strained indium sites in ambient air
2025
Overview
Strain engineering offers an attractive strategy for improving intrinsic catalytic performance of a heterogeneous catalyst. Herein, we successfully create strain into layered indium sulfide (In
2
S
3
) at atomic scale via introducing oxygen coordination and sulfur vacancy using a wet-chemistry method. The atomically strained In
2
S
3
exhibits greatly enhanced CO
2
photoreduction performance, achieving a CO
2
to CO conversion rate of 5.16 μmol g
catalyst
−1
h
−1
under visible light illumination in ambient air. In-situ spectroscopic measurements together with theoretical calculations indicate that the atomically strained In
2
S
3
features lattice disordered defects on surface, which provides rich uncoordinated catalytic sites and induces structural distortion, resulting in modified band structure that promotes CO
2
adsorption/activation and boosts photogenerated charge carriers’ separation during CO
2
photoreduction. This work provides a new approach for the rational design of atomically strained photocatalysts for CO
2
reduction in ambient air.
Achieving visible-light-driven CO
2
photoreduction in ambient air is significant yet challenging. Here, the authors introduce strain into layered In
2
S
3
at atomic scale for promoted CO
2
activation and boosted photogenerated charge carrier separation in atmospheric CO
2
photoreduction.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
