【摘 要】
：
The development of robust photocatalytic systems is key to harvest the solar power for hydrogen pro-duction. In the current study, a series of aluminum-based porphyrinic metal organic frameworks (Al-TCPP) with various morphologies of bulk, carambola-like
【机 构】
：
Soochow Institute for Energy and Materials Innovations,College of Energy,Soochow University,Suzhou 2
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The development of robust photocatalytic systems is key to harvest the solar power for hydrogen pro-duction. In the current study, a series of aluminum-based porphyrinic metal organic frameworks (Al-TCPP) with various morphologies of bulk, carambola-like and nanosheets are synthesized with modu-lated layer thickness. Morphology-dependent photocatalytic activities in hydrogen production are wit-nessed and inversely correlate to the thickness of the Al-TCPP micro-platelets or nanosheets. Particu-larly, the exfoliated metal organic layers (MOLs) of Al-TCPP demonstrated a high hydrogen yield rate of 1.32 × 104 μmol h? 1 g? 1 that is 21-fold of that from the bulk catalyst, as well as an exceptional TON of 6704 that seldom seen in literature. Through comprehensive photochemical characterizations, the remark-able photocatalytic performance of Al-TCPP-MOL is attributed to the great charge separation efficiency and transfer kinetics endowed by the ultrathin 2D morphology with extended active surface area.
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