Optimally Miscible Polymer Bulk-Heterojunction-Particles for Nonsurfactant Photocatalytic Hydrogen Evolution DOI Creative Commons
Wei‐Cheng Lin,

Yu‐En Sun,

Ying‐Rang Zhuang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 20, 2024

Mini-emulsion and nanoprecipitation techniques relied on large amounts of surfactants, unresolved miscibility issues heterojunction materials limited their efficiency applicability in the past. Through our molecular design developed surfactant-free precipitation method, we successfully fabricated best miscible bulk-heterojunction-particles (BHJP) ever achieved, using donor (PS) acceptor (PSOS) polymers. The structural similarity ensures optimal miscibility, as supported by interaction parameter PS/PSOS blend is positioned very close to binodal curve. Experimental studies dynamics simulations further revealed that surfactants hinder electron output sites reduce concentration sacrificial agents at interface, slowing polaron formation. Multiscale experiments verified these BHJP, approximately 12 nm diameter, form cross-linked fractal networks several hundred nanometers. Transient absorption spectroscopy showed BHJP facilitates formation transfer. Our demonstrated a superior hydrogen evolution rate (HER) compared traditional methods. most active achieved an HER 251.2 mmol h–1 g–1 apparent quantum yield 26.2% 500 nm. This work not only introduces practical method for preparing but also offers new direction development materials.

Language: Английский

Insight into the unique role of silver single-atom in atomic-thickness ZnIn2S4/g-C3N4 Van der Waals heterojunction for photocatalytic hydrogen evolution DOI

Lin Jin,

Yajuan Wei, Lanlan Feng

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 742 - 753

Published: Sept. 16, 2024

Language: Английский

Citations

4
Phenolic Resin with an Optimized Donor–Acceptor Architecture for Photocatalytic Aerobic Oxidation DOI

Meng Li,

Mei‐Rong Huang, Lin Zheng

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 17622 - 17632

Published: Nov. 14, 2024

A promising strategy to enhance exciton dissociation and charge separation in phenolic-polymer-based photocatalysts is the generation utilization of benzenoid–quinoid donor–acceptor (D–A) couples inside phenolic resin frameworks. However, there are often more donors than acceptors due sluggish kinetics situ oxidation phenols quinoid methides, leading a mismatched D/A ratio. Herein, we report well-cross-linked with unity ratio synthesized by using phloroglucinol as building block for condensation formaldehyde. The higher electron density on aromatic ring not only facilitates phloroglucinols forming equivalent D–A couples, but also lowers energy barrier reaction, resulting highly cross-linked framework well-developed π-conjugated electronic structure. phloroglucinol-formaldehyde product demonstrates significantly improved photocatalytic performance selective methyl phenyl sulfide oxidative coupling benzylamine. Our approach shows potential resins solar-induced chemical conversion.

Language: Английский

Citations

4
D1-D2-A ternary conjugated microporous polymers synthesized via direct C H arylation for enhancing photocatalytic hydrogen evolution DOI

Can Lang,

Hao Gong, Gang Ye

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Molecular engineering of novel D−A1−A2 conjugated microporous polymers by efficient electron donor for highly enhanced photocatalytic hydrogen generation DOI

Xinyang Xu,

Jiawen Liu,

Yixin Sun

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132454 - 132454

Published: March 1, 2025

Language: Английский

Citations

0
Structural Regulation of Sulfone-Decorated Conjugated Polymers for Boosting Photocatalysis DOI
Weijie Zhang,

Xinye Luo,

Huijing Tang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

The multifarious aromatic sulfone-decorated conjugated polymers (CPs) have recently been developed to enable them be employed in artificial photocatalysis with encouraging achievements.

Language: Английский

Citations

0
Optimally Miscible Polymer Bulk-Heterojunction-Particles for Nonsurfactant Photocatalytic Hydrogen Evolution DOI Creative Commons
Wei‐Cheng Lin,

Yu‐En Sun,

Ying‐Rang Zhuang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 20, 2024

Mini-emulsion and nanoprecipitation techniques relied on large amounts of surfactants, unresolved miscibility issues heterojunction materials limited their efficiency applicability in the past. Through our molecular design developed surfactant-free precipitation method, we successfully fabricated best miscible bulk-heterojunction-particles (BHJP) ever achieved, using donor (PS) acceptor (PSOS) polymers. The structural similarity ensures optimal miscibility, as supported by interaction parameter PS/PSOS blend is positioned very close to binodal curve. Experimental studies dynamics simulations further revealed that surfactants hinder electron output sites reduce concentration sacrificial agents at interface, slowing polaron formation. Multiscale experiments verified these BHJP, approximately 12 nm diameter, form cross-linked fractal networks several hundred nanometers. Transient absorption spectroscopy showed BHJP facilitates formation transfer. Our demonstrated a superior hydrogen evolution rate (HER) compared traditional methods. most active achieved an HER 251.2 mmol h–1 g–1 apparent quantum yield 26.2% 500 nm. This work not only introduces practical method for preparing but also offers new direction development materials.

Language: Английский

Citations

0