Donor-acceptor type triazine-based conjugated porous polymer for visible-light-driven photocatalytic hydrogen evolution

Yu, Jie; Sun, Xiaoqin; Xu, Xiaoxiang; Zhang, Chi; He, Xiaoming

doi:10.1016/j.apcatb.2019.117935

Cited by 92 publications

(68 citation statements)

References 47 publications

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“…CMPs bearing the feasibility of wide and tunable band gap would be potential candidates for the photocatalytic generation of H2 from water, and many studies have focused on CMPs in this application. [128][129][130][131][132] Copper et al described a library of pyrene-based CMPs with tunable optical gap via the rational copolymerization of benzeneand pyrene-based monomers, which exhibited great potential advantages for water splitting to generate H2. 133 Recently, Jiang and co-workers reported a series of D--A CMPs and evaluated their photocatalytic activities for hydrogen evolution from water.…”

Section: Photocatalysismentioning

confidence: 99%

Rational design of bifunctional conjugated microporous polymers

et al. 2021

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Section: Photocatalysismentioning

confidence: 99%

Rational design of bifunctional conjugated microporous polymers

et al. 2021

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“…Consequently, increasing the fraction of M2 in the polymers could be beneficial to the photocatalytic efficiency. P9 (A-D-A) and P10 (D-A) (Figure 2) by a metal-free catalyzed approach [50]. Compared with P10, introducing a benzothiadiazole unit into P9 effectively reduced the optical bandgap from 2.94 eV to the ideal value of 2.33 eV.…”

Section: Review Donor-acceptor Conjugated Polymersmentioning

confidence: 99%

“…He et al developed two pyrazole-triazine-based CTFs, that is, P9 (A–D–A) and P10 (D–A) ( Figure 2 ) by a metal-free catalyzed approach [ 50 ]. Compared with P10 , introducing a benzothiadiazole unit into P9 effectively reduced the optical bandgap from 2.94 eV to the ideal value of 2.33 eV.…”

Section: Reviewmentioning

confidence: 99%

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Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

Sheng¹,

Xing²,

Chen³

et al. 2021

Beilstein J. Nanotechnol.

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Conjugated polymers (CPs) as photocatalysts have evoked substantial interest. Their geometries and physical (e.g., chemical and thermal stability and solubility), optical (e.g., light absorption range), and electronic properties (e.g., charge carrier mobility, redox potential, and exciton binding energy) can be easily tuned via structural design. In addition, they are of light weight (i.e., mainly composed of C, N, O, and S). To improve the photocatalytic performance of CPs and better understand the catalytic mechanisms, many strategies with respect to material design have been proposed. These include tuning the bandgap, enlarging the surface area, enabling more efficient separation of electron–hole pairs, and enhancing the charge carrier mobility. In particular, donor–acceptor (D–A) polymers were demonstrated as a promising platform to develop high-performance photocatalysts due to their easily tunable bandgaps, high charge carrier mobility, and efficient intramolecular charge transfer. In this minireview, recent advances of D–A polymers in photocatalytic hydrogen evolution are summarized with a particular focus on modulating the optical and electronic properties of CPs by varying the acceptor units. The challenges and prospects associated with D–A polymer-based photocatalysts are described as well.

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“…Therefore, porous photocatalysts with high Brunauer–Emmett–Teller surface areas (SA BET ), namely, COFs and CMPs, 42 − 44 have been developed for photocatalysis. 10 , 34 , 45 − 47 In a previous paper, we studied CMPs and their linear polymer analogues and found that the porous materials do not always outperform their non-porous analogues. 45 …”

Section: Introductionmentioning

confidence: 99%

Impact of Chemical Structure on the Dynamics of Mass Transfer of Water in Conjugated Microporous Polymers: A Neutron Spectroscopy Study

Guilbert

Bai

Aitchison

et al. 2021

ACS Appl. Polym. Mater.

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Hydrogen fuel can contribute as a masterpiece in conceiving a robust carbon-free economic puzzle if cleaner methods to produce hydrogen become technically efficient and economically viable. Organic photocatalytic materials such as conjugated microporous materials (CMPs) are potential attractive candidates for water splitting as their energy levels and optical band gap as well as porosity are tunable through chemical synthesis. The performances of CMPs depend also on the mass transfer of reactants, intermediates, and products. Here, we study the mass transfer of water (H 2 O and D 2 O) and of triethylamine, which is used as a hole scavenger for hydrogen evolution, by means of neutron spectroscopy. We find that the stiffness of the nodes of the CMPs is correlated with an increase in trapped water, reflected by motions too slow to be quantified by quasi-elastic neutron scattering (QENS). Our study highlights that the addition of the polar sulfone group results in additional interactions between water and the CMP, as evidenced by inelastic neutron scattering (INS), leading to changes in the translational diffusion of water, as determined from the QENS measurements. No changes in triethylamine motions could be observed within the CMPs from the present investigations.

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Donor-acceptor type triazine-based conjugated porous polymer for visible-light-driven photocatalytic hydrogen evolution

Cited by 92 publications

References 47 publications

Rational design of bifunctional conjugated microporous polymers

Rational design of bifunctional conjugated microporous polymers

Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

Impact of Chemical Structure on the Dynamics of Mass Transfer of Water in Conjugated Microporous Polymers: A Neutron Spectroscopy Study

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