Effect of the length of bromoalkyl chains on light-driven hydrogen evolution facilitated by fluorene-based polymers

Sun, Han‐Sheng; Tsai, Tien‐Liang; Chang, Cheng‐Hao; Chen, Yen‐Yu; Yang, Hau‐Ren; Wu, Jeffrey C.S.; Lai, Yinchieh

doi:10.1039/d2se00902a

Cited by 2 publications

(1 citation statement)

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“…[36] Moreover, TEA has been intensively used as a sacrificial agent in light-driven hydrogen evolution reactions promoted by conjugated polymers. [37][38][39][40][41] Under illumination, electron transfer would occur between a conjugated polymer and TEA. The reaction of the oxidized TEA with water yields DEA and acetaldehyde.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO₂ to CH₄ and CO

Chen

Lai

2023

ChemSusChem

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A Sonogashira coupling reaction leads to the formation of a serendipitous product C with the 3,3'-(ethane-1,2diylidene)bis(indolin-2-one) unit. To our knowledge, our study provides the first example demonstrating that electron transfer between isoindigo and triethylamine can be thermally activated and can be employed in synthesis. The physical properties of C suggest that it possesses decent photo-induced electron-transfer capabilities. Under the illumination of 136 mW cm À 2 inten-sity, C yields � 2.4 mmol g cat À 1 (per gram of catalyst) of CH 4 and � 0.5 mmol g cat À 1 of CO in 20 h in the absence of additional metal, co-catalyst, and amine sacrificial agent. The primary kinetic isotope effect suggests that the bond cleavage of water is a rate-determining step in the reduction. Moreover, the CH 4 and CO production can be boosted as the illuminance increases. This study demonstrates that organic donor-acceptor conjugated molecules are potential photocatalysts for CO 2 reduction.

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Section: Resultsmentioning

confidence: 99%

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO₂ to CH₄ and CO

Chen

Lai

2023

ChemSusChem

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Integrating Conjugated Polymers with Bacteriorhodopsin to Realize Quasi Dual‐Gate Organic Field‐Effect Transistors

Chen,

Ko,

Chen

et al. 2023

Adv Elect Materials

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Four conjugated polymers are integrated with a bacteriorhodopsin D94N‐HmBRI in organic field‐effect transistors (OFETs) with the device architecture of doped Si bottom gate/SiO2 bottom electric/semiconducting polymer/Au electrodes/D94N‐HmBRI top dielectric. Photosensitivity of D94N‐HmBRI in the devices is validated. It is proposed that light activates the conformational change of all‐trans retinal to 13‐cis retinal in D94N‐HmBRI. The D94N‐HmBRI layer then applies momentary dipoles to the semiconductors, affecting threshold voltage, resulting in photosensitivity. Film‐thickness variation, capacitance determination, and grazing‐incidence X‐ray scattering are performed to support the proposed working principle. Quasi dual‐gate OFETs with a highly doped silicon wafer as the bottom gate and light as the top gate are thus realized by combining conjugated polymers with D94N‐HmBRI.

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Effect of the length of bromoalkyl chains on light-driven hydrogen evolution facilitated by fluorene-based polymers

Abstract: Tetraalkylammonium bromide is produced in situ. The effect of the length of bromoalkyl chains is recognized, indicating the importance of side-chain engineering. The hydrogen evolution rate is improved significantly by the presence of Pd.

Cited by 2 publications

References 51 publications

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO₂ to CH₄ and CO

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO₂ to CH₄ and CO

Integrating Conjugated Polymers with Bacteriorhodopsin to Realize Quasi Dual‐Gate Organic Field‐Effect Transistors

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Effect of the length of bromoalkyl chains on light-driven hydrogen evolution facilitated by fluorene-based polymers

Abstract: Tetraalkylammonium bromide is produced in situ. The effect of the length of bromoalkyl chains is recognized, indicating the importance of side-chain engineering. The hydrogen evolution rate is improved significantly by the presence of Pd.

Cited by 2 publications

References 51 publications

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO2 to CH4 and CO

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO2 to CH4 and CO

Integrating Conjugated Polymers with Bacteriorhodopsin to Realize Quasi Dual‐Gate Organic Field‐Effect Transistors

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Product

Resources

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Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO₂ to CH₄ and CO

Synthesis of 3,3’‐(Ethane‐1,2‐diylidene)bis(indolin‐2‐one) Promoted by Thermally‐activated Electron Transfer and Photoreduction of CO₂ to CH₄ and CO