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Issue 82, 2018
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Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins

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Abstract

Three new isomeric naphthalimide conjugated porphyrins, ZnT(p-NI)PP, ZnT(m-NI)PP and ZnT(o-NI)PP are developed for photocatalytic H2 production. The para-substituted isomer, ZnT(p-NI)PP delivered a much higher H2 production rate (ηH2) of 973 μmol g−1 h−1 compared to that of meta- and ortho-substituted isomers, ZnT(m-NI)PP (597 μmol g−1 h−1) and ZnT(o-NI)PP (54 μmol g−1 h−1), respectively. The ZnTPP produced ηH2 of 7 μmol g−1 h−1, which is 200 times lower than the ZnT(p-NI)PP. The highest ηH2 of ZnT(p-NI)PP among the isomers could be attributed to the most efficient intramolecular energy transfer from the naphthalimide to the porphyrin ring which further enhanced the electron transfer from the photo-excited porphyrin moiety to the Pt co-catalyst.

Graphical abstract: Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins

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Publication details

The article was received on 26 Aug 2018, accepted on 24 Sep 2018 and first published on 25 Sep 2018


Article type: Communication
DOI: 10.1039/C8CC06919K
Citation: Chem. Commun., 2018,54, 11614-11617
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    Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins

    G. B. Bodedla, L. Li, Y. Che, Y. Jiang, J. Huang, J. Zhao and X. Zhu, Chem. Commun., 2018, 54, 11614
    DOI: 10.1039/C8CC06919K

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