Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water

Mohamed Gamal Mohamed; Mohamed Hammad Elsayed; Ahmed M. Elewa; Ahmed F.M. EL-Mahdy; Cheng Han Yang; Ahmed A.K. Mohammed; Ho Hsiu Chou; Shiao Wei Kuo

doi:10.1039/d0cy02482a

Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water

Mohamed Gamal Mohamed
, Mohamed Hammad Elsayed
, Ahmed M. Elewa
, Ahmed F.M. EL-Mahdy
, Cheng Han Yang
, Ahmed A.K. Mohammed
, Ho Hsiu Chou^*
, Shiao Wei Kuo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

112 Scopus citations

Abstract

Photoactive conjugated microporous polymers (CMPs) are emerging as porous materials capable of mediating the photocatalytic evolution of H₂from water. In this study, we synthesized three pyrene-based CMPs (Py-F-CMP, Py-TPA-CMP, Py-TPE-CMP) through Sonogashira-Hagihara cross-couplings of 1,3,6,8-tetraethynylpyrene (Py-T, as a common monomer building block) with 2,7-dibromo-9H-fluorene (F-Br₂), tris(4-bromophenyl)amine (TPA-Br₃), and 1,1,2,2-tetrakis(4-bromophenyl)ethene (TPE-Br₄), respectively, in the presence of Pd(PPh₃)₄in DMF/Et₃N. We then characterized the chemical structures, crystallinities, thermal stabilities, surface morphologies, and porosities of these three new CMPs. Brunauer-Emmett-Teller (BET) analyses and tests of photocatalytic H₂production revealed that Py-TPA-CMP displayed the highest BET surface area (454 m²g⁻¹), highest total pore volume (0.28 cm³g⁻¹), highest H₂evolution rate (19 200 μmol h⁻¹g⁻¹), and highest apparent quantum yield (15.3%) when compared with those of Py-F-CMP, Py-TPE-CMP, and other organic porous materials.

Original language	English
Pages (from-to)	2229-2241
Number of pages	13
Journal	Catalysis Science and Technology
Volume	11
Issue number	6
DOIs	https://doi.org/10.1039/d0cy02482a
State	Published - 21 Mar 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry 2021.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Catalysis

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10.1039/d0cy02482a

Cite this

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title = "Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water",

abstract = "Photoactive conjugated microporous polymers (CMPs) are emerging as porous materials capable of mediating the photocatalytic evolution of H2from water. In this study, we synthesized three pyrene-based CMPs (Py-F-CMP, Py-TPA-CMP, Py-TPE-CMP) through Sonogashira-Hagihara cross-couplings of 1,3,6,8-tetraethynylpyrene (Py-T, as a common monomer building block) with 2,7-dibromo-9H-fluorene (F-Br2), tris(4-bromophenyl)amine (TPA-Br3), and 1,1,2,2-tetrakis(4-bromophenyl)ethene (TPE-Br4), respectively, in the presence of Pd(PPh3)4in DMF/Et3N. We then characterized the chemical structures, crystallinities, thermal stabilities, surface morphologies, and porosities of these three new CMPs. Brunauer-Emmett-Teller (BET) analyses and tests of photocatalytic H2production revealed that Py-TPA-CMP displayed the highest BET surface area (454 m2g−1), highest total pore volume (0.28 cm3g−1), highest H2evolution rate (19 200 μmol h−1g−1), and highest apparent quantum yield (15.3\%) when compared with those of Py-F-CMP, Py-TPE-CMP, and other organic porous materials.",

author = "Mohamed, \{Mohamed Gamal\} and Elsayed, \{Mohamed Hammad\} and Elewa, \{Ahmed M.\} and EL-Mahdy, \{Ahmed F.M.\} and Yang, \{Cheng Han\} and Mohammed, \{Ahmed A.K.\} and Chou, \{Ho Hsiu\} and Kuo, \{Shiao Wei\}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",

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month = mar,

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doi = "10.1039/d0cy02482a",

language = "English",

volume = "11",

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T1 - Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water

AU - Mohamed, Mohamed Gamal

AU - Elsayed, Mohamed Hammad

AU - Elewa, Ahmed M.

AU - EL-Mahdy, Ahmed F.M.

AU - Yang, Cheng Han

AU - Mohammed, Ahmed A.K.

AU - Chou, Ho Hsiu

AU - Kuo, Shiao Wei

PY - 2021/3/21

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AB - Photoactive conjugated microporous polymers (CMPs) are emerging as porous materials capable of mediating the photocatalytic evolution of H2from water. In this study, we synthesized three pyrene-based CMPs (Py-F-CMP, Py-TPA-CMP, Py-TPE-CMP) through Sonogashira-Hagihara cross-couplings of 1,3,6,8-tetraethynylpyrene (Py-T, as a common monomer building block) with 2,7-dibromo-9H-fluorene (F-Br2), tris(4-bromophenyl)amine (TPA-Br3), and 1,1,2,2-tetrakis(4-bromophenyl)ethene (TPE-Br4), respectively, in the presence of Pd(PPh3)4in DMF/Et3N. We then characterized the chemical structures, crystallinities, thermal stabilities, surface morphologies, and porosities of these three new CMPs. Brunauer-Emmett-Teller (BET) analyses and tests of photocatalytic H2production revealed that Py-TPA-CMP displayed the highest BET surface area (454 m2g−1), highest total pore volume (0.28 cm3g−1), highest H2evolution rate (19 200 μmol h−1g−1), and highest apparent quantum yield (15.3%) when compared with those of Py-F-CMP, Py-TPE-CMP, and other organic porous materials.

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Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water

Abstract

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