Covalently Tethering Atomically Precise Au<sub>25</sub> Nanoclusters onto Covalent Organic Framework for Visible-Light-Driven CO<sub>2</sub> Reduction.

Transient surface photovoltage (TPV) measurements showed an increasing trend in both signal intensity and accumulated charge ( A ) from TF-COF to TF-COF-CONH-Au 25 -Co, along with shorter charge extraction times ( T max ) and larger decay constants ( τ ), with τ increasing from 0.104 μs (TF-COF) to 1.140 μs (TF-COF-CONH-Au 25 -Co) (Fig. 5 D to F and Table S6 ), suggesting a obviously reduced recombination rate [ 65 , 66 ].

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