Near-infrared-driven photocatalytic CO<sub>2</sub> reduction to C<sub>2</sub> hydrocarbons by bis(terpyridine)-metal functionalized lead halide frameworks.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 41540018.
- Also identified by DOI 10.1038/s41467-026-68450-z and PMC identifier 12914057.
- Licence recorded as CC BY-NC-ND.
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Abstract
Hybrid lead halides have demonstrated great promise for CO<sub>2</sub> photoreduction due to their excellent photophysical properties. However, developing a single-component hybrid lead halide that combines high intrinsic stability with near-infrared absorption remains a significant challenge. Herein, to address both issues, we design a series of nine highly stable lead halide frameworks functionalized by bis(terpyridine)-metal complexes, which exhibit strong light absorption extending into the near-infrared region up to 1150 nm. Unlike their symmetric chloride and bromide analogues, the charge-polarized lead iodide sites in bis(terpyridine)-metal-functionalized frameworks serve as highly efficient C-C coupling centers for C<sub>2</sub> production in near-infrared-driven CO<sub>2</sub> photoreduction, achieving notable C<sub>2</sub> production rates of up to 14.2 μmol g<sup>-1</sup> h<sup>-1</sup> with electron selectivities as high as 86%. These performances match the state-of-the-art among all reported single-component, near-infrared-responsive photocatalysts. This work highlights the potential of coordination-driven assembly of highly stable lead halide frameworks for near-infrared-driven artificial photosynthesis.