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

Govardhana Babu Bodedla; Lingling Li; Yuanyuan Che; Yijiao Jiang; Jun Huang; Jianzhang Zhao; Xunjin Zhu

doi:10.1039/c8cc06919k

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

Govardhana Babu Bodedla
, Lingling Li
, Yuanyuan Che
, Yijiao Jiang
, Jun Huang
, Jianzhang Zhao
, Xunjin Zhu^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

44 Citations (Scopus)

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.

Original language	English
Pages (from-to)	11614-11617
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	82
DOIs	https://doi.org/10.1039/c8cc06919k
Publication status	Published - 2018

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@article{ebdc1bd068984ded81df4d2a91cd49c1,

title = "Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins",

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.",

author = "Bodedla, \{Govardhana Babu\} and Lingling Li and Yuanyuan Che and Yijiao Jiang and Jun Huang and Jianzhang Zhao and Xunjin Zhu",

note = "Funding Information: This work was supported by Hong Kong Research Grants Council (HKBU 22304115-ECS), Areas of Excellence Scheme (AoE/P-03/08), the Hong Kong Baptist University (FRG2-16-17-024, FRG2-17-18-068, RC-ICRS/15-16/02E, RC-ICRS/1617/02C-CHE and RC-IRMS/16/17/ 02CHEM), and the Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ20150630164505504).",

year = "2018",

doi = "10.1039/c8cc06919k",

language = "English",

volume = "54",

pages = "11614--11617",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "82",

}

TY - JOUR

T1 - Enhancing photocatalytic hydrogen evolution by intramolecular energy transfer in naphthalimide conjugated porphyrins

AU - Bodedla, Govardhana Babu

AU - Li, Lingling

AU - Che, Yuanyuan

AU - Jiang, Yijiao

AU - Huang, Jun

AU - Zhao, Jianzhang

AU - Zhu, Xunjin

N1 - Funding Information: This work was supported by Hong Kong Research Grants Council (HKBU 22304115-ECS), Areas of Excellence Scheme (AoE/P-03/08), the Hong Kong Baptist University (FRG2-16-17-024, FRG2-17-18-068, RC-ICRS/15-16/02E, RC-ICRS/1617/02C-CHE and RC-IRMS/16/17/ 02CHEM), and the Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ20150630164505504).

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85054757455

U2 - 10.1039/c8cc06919k

DO - 10.1039/c8cc06919k

M3 - Journal article

C2 - 30264085

AN - SCOPUS:85054757455

SN - 1359-7345

VL - 54

SP - 11614

EP - 11617

JO - Chemical Communications

JF - Chemical Communications

IS - 82

ER -

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

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