| Autor: |
Zhang, Meijin, Lin, Wenting, Ma, Liang, Pi, Yunhong, Wang, Tiejun |
| Předmět: |
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| Zdroj: |
Chemical Communications; 6/28/2022, Vol. 58 Issue 51, p7140-7143, 4p |
| Abstrakt: |
We report here the hierarchical construction of a molecular Co(II)-salicylaldimine catalyst and an in situ derived In2S3 semiconductor in a MOF@In2S3 heterojunction through sequentially controllable in situ etching and post-synthetic modification for photocatalytic hydrogen production from formic acid. The enhanced catalyst stability and facilitated charge carrier mobility between the In2S3 photosensitizers and Co catalyst realize a superior H2 production rate of 18 746 μmol g−1 h−1 (selectivity > 99.9%) with a turnover number (TON) of up to 6146 in 24 h (apparent quantum efficiency of 3.8% at 420 nm), indicating a 165-fold enhancement over that of the pristine MOF. This work highlights a powerful strategy for synergistic Earth-abundant metal-based MOF photocatalysis in promoting H2 production from FA. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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