Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light
Three dibenzothiophene-S,S-dioxide-based alternating copolymers were synthesized by facile Suzuki polymerization for visible light-responsive hydrogen production from water (> 420 nm). Without addition of any cocatalyst, FluPh2-SO showed a photocatalytic efficiency of 3.48 mmol h-1 g-1 , while a...
| Main Authors: | , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/139222 |
| _version_ | 1811687443143852032 |
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| author | Dai, Chunhui Xu, Shidang Liu, Wei Gong, Xuezhong Panahandeh-Fard, Majid Liu, Zitong Zhang, Deqing Xue, Can Loh, Kian Ping Liu, Bin |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Dai, Chunhui Xu, Shidang Liu, Wei Gong, Xuezhong Panahandeh-Fard, Majid Liu, Zitong Zhang, Deqing Xue, Can Loh, Kian Ping Liu, Bin |
| author_sort | Dai, Chunhui |
| collection | NTU |
| description | Three dibenzothiophene-S,S-dioxide-based alternating copolymers were synthesized by facile Suzuki polymerization for visible light-responsive hydrogen production from water (> 420 nm). Without addition of any cocatalyst, FluPh2-SO showed a photocatalytic efficiency of 3.48 mmol h-1 g-1 , while a larger hydrogen evolution rate (HER) of 4.74 mmol h-1 g-1 was achieved for Py-SO, which was ascribed to the improved coplanarity of the polymer that facilitated both intermolecular packing and charge transport. To minimize the possible steric hindrance of FluPh2-SO by replacing 9,9'-diphenylfluorene with fluorene, Flu-SO exhibited a more red-shifted absorption than FluPh2-SO and yielded the highest HER of 5.04 mmol h-1 g-1 . This work highlights the potential of dibenzothiophene-S,S-dioxide as a versatile building block and the rational design strategy for achieving high photocatalytic efficiency. |
| first_indexed | 2024-10-01T05:16:23Z |
| format | Journal Article |
| id | ntu-10356/139222 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:16:23Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1392222020-06-01T10:01:49Z Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light Dai, Chunhui Xu, Shidang Liu, Wei Gong, Xuezhong Panahandeh-Fard, Majid Liu, Zitong Zhang, Deqing Xue, Can Loh, Kian Ping Liu, Bin School of Materials Science & Engineering Engineering::Materials Conjugated Polymers Dibenzothiophene-S,S-dioxide Three dibenzothiophene-S,S-dioxide-based alternating copolymers were synthesized by facile Suzuki polymerization for visible light-responsive hydrogen production from water (> 420 nm). Without addition of any cocatalyst, FluPh2-SO showed a photocatalytic efficiency of 3.48 mmol h-1 g-1 , while a larger hydrogen evolution rate (HER) of 4.74 mmol h-1 g-1 was achieved for Py-SO, which was ascribed to the improved coplanarity of the polymer that facilitated both intermolecular packing and charge transport. To minimize the possible steric hindrance of FluPh2-SO by replacing 9,9'-diphenylfluorene with fluorene, Flu-SO exhibited a more red-shifted absorption than FluPh2-SO and yielded the highest HER of 5.04 mmol h-1 g-1 . This work highlights the potential of dibenzothiophene-S,S-dioxide as a versatile building block and the rational design strategy for achieving high photocatalytic efficiency. NRF (Natl Research Foundation, S’pore) ASTAR (Agency for Sci., Tech. and Research, S’pore) MOE (Min. of Education, S’pore) 2020-05-18T05:49:48Z 2020-05-18T05:49:48Z 2018 Journal Article Dai, C., Xu, S., Liu, W., Gong, X., Panahandeh-Fard, M., Liu, Z., . . . Liu, B. (2018). Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light. Small, 14(34), 1801839-. doi:10.1002/smll.201801839 1613-6810 https://hdl.handle.net/10356/139222 10.1002/smll.201801839 30039934 2-s2.0-85052055899 34 14 en Small © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. |
| spellingShingle | Engineering::Materials Conjugated Polymers Dibenzothiophene-S,S-dioxide Dai, Chunhui Xu, Shidang Liu, Wei Gong, Xuezhong Panahandeh-Fard, Majid Liu, Zitong Zhang, Deqing Xue, Can Loh, Kian Ping Liu, Bin Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light |
| title | Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light |
| title_full | Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light |
| title_fullStr | Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light |
| title_full_unstemmed | Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light |
| title_short | Dibenzothiophene‐S,S‐dioxide‐based conjugated polymers : highly efficient photocatalyts for hydrogen production from water under visible light |
| title_sort | dibenzothiophene s s dioxide based conjugated polymers highly efficient photocatalyts for hydrogen production from water under visible light |
| topic | Engineering::Materials Conjugated Polymers Dibenzothiophene-S,S-dioxide |
| url | https://hdl.handle.net/10356/139222 |
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