TY - JOUR
T1 - A thiophene bridged naphthalimide-porphyrin complex with enhanced activity and stability in photocatalytic H2 evolution
AU - Bodedla, Govardhana Babu
AU - Tang, Geliang
AU - Zhao, Jianzhang
AU - Zhu, Xunjin
N1 - Funding Information:
This work was supported by the Hong Kong Research Grants Council (HKBU 22304115-ECS), Hong Kong Baptist University (FRG2-16-17-024 and FRG2-17-18-068), the Inter-institutional Collaborative Research Scheme (RC-ICRS/15-16/02E, RC-ICRS/1617/02C-CHE, and RC-ICRS-18-19-01A), and the Interdisciplinary Research Matching Scheme (RC-IRMS/16/17/02CHEM).
Funding Information:
This work was supported by the Hong Kong Research Grants Council (HKBU 22304115-ECS), Hong Kong Baptist University (FRG2-16-17-024 and FRG2-17-18-068), the Inter-institutional Collaborative Research Scheme (RC-ICRS/15-16/02E, RC-ICRS/ 1617/02C-CHE, and RC-ICRS-18-19-01A), and the Interdisciplinary Research Matching Scheme (RC-IRMS/16/17/02CHEM).
PY - 2020/6
Y1 - 2020/6
N2 - More efficient intramolecular energy transfer in the naphthalimide-porphyrin complex, ZnT(p-NI)TP, is accomplished by an electron rich coplanar thiophene π-linkage compared to the analogous porphyrin ZnT(p-NI)PP bearing a less coplanar phenylene π-linker. As a result, ZnT(p-NI)TP shows enhanced light-harvesting ability, electron lifetime and photoinduced charge carrier separation compared to ZnT(p-NI)PP and this boosted electron transfer from the photoexcited porphyrin moiety to the proton reduction catalyst, consequently, resulting in a 2.9 fold higher hydrogen evolution rate (ηH2) of ZnT(p-NI)TP (4.28 mmol g−1h−1) than ZnT(p-NI)PP (1.50 mmol g−1h−1). ZnT(p-NI)TP is also much more photostable than ZnT(p-NI)PP and continued to show hydrogen evolution for up to 50 h.
AB - More efficient intramolecular energy transfer in the naphthalimide-porphyrin complex, ZnT(p-NI)TP, is accomplished by an electron rich coplanar thiophene π-linkage compared to the analogous porphyrin ZnT(p-NI)PP bearing a less coplanar phenylene π-linker. As a result, ZnT(p-NI)TP shows enhanced light-harvesting ability, electron lifetime and photoinduced charge carrier separation compared to ZnT(p-NI)PP and this boosted electron transfer from the photoexcited porphyrin moiety to the proton reduction catalyst, consequently, resulting in a 2.9 fold higher hydrogen evolution rate (ηH2) of ZnT(p-NI)TP (4.28 mmol g−1h−1) than ZnT(p-NI)PP (1.50 mmol g−1h−1). ZnT(p-NI)TP is also much more photostable than ZnT(p-NI)PP and continued to show hydrogen evolution for up to 50 h.
UR - https://www.scopus.com/pages/publications/85085994911
U2 - 10.1039/d0se00356e
DO - 10.1039/d0se00356e
M3 - Journal article
AN - SCOPUS:85085994911
SN - 2398-4902
VL - 4
SP - 2675
EP - 2679
JO - Sustainable Energy and Fuels
JF - Sustainable Energy and Fuels
IS - 6
ER -
