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

Interfacial Assembled Hydrogel Evaporator for Highly Efficient Thermal Management and Photothermal Coupled Water Splitting Reaction DOI
Wenjie Li, Jinghan Li,

Lingling Ding

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 16, 2024

Abstract This study presents the design and synthesis of a hydrogel composite optimized for Interface Solar Steam Generation (ISSG), merging photothermal MoS 2 hollow nanospheres, enhanced via polydopamine (PDA) coating superior light absorption, with polyvinyl alcohol (PVA) matrix. The achieves conversion efficiency 95.6% at interface, highlighting its effectiveness in solar energy harvesting. Under 1 kW m⁻ irradiance, remarkable evaporation rates 5.41 kg h⁻¹ (pure water) 5.07 (seawater) are recorded, alongside efficiencies 93.7% 90.8%. Outdoor testing confirms steady freshwater production 3.11 h⁻¹. Incorporating coupled water splitting hydrogen production, this system effectively mitigates corrosive effects chloride ions typically encountered seawater, ensuring integrity catalyst thereby maintaining high rate 45.5 mmol It exemplifies sophisticated approach to balancing thermal dynamics transportation technology. By demonstrating feasibility concurrent efficient catalytic research introduces pivotal strategy enhancing practicality versatility ISSG systems, advancing sustainable treatment solutions.

Language: Английский

Citations

17
Indanone-based conjugated polymers enabling ultrafast electron transfer for visible light-driven hydrogen evolution from water DOI
Tse‐Fu Huang,

Ying‐Rang Zhuang,

Chih‐Li Chang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(6), P. 3633 - 3643

Published: Jan. 1, 2024

Our study underscores that ICTDB, a polymer with one malononitrile substitution, outperforms in the HER and displays enhanced ultrafast charge transfer capabilities.

Language: Английский

Citations

7
Understanding charge carrier dynamics in organic photocatalysts for hydrogen evolution DOI Creative Commons
Jinhyuk Choi,

Wooteak Jung,

Soranyel González‐Carrero

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(21), P. 7999 - 8018

Published: Jan. 1, 2024

This review surveyed the charge behavior in organic photocatalysis, and elucidated a correlation between molecular structure, dynamics photocatalytic performance.

Language: Английский

Citations

7
Symmetry‐breaking of Dibenzo[b,d]thiophene Sulfone Enhancing Polaron Generation for Boosted Photocatalytic Hydrogen Evolution DOI
Wei‐Cheng Lin,

Yi‐Hsiang Wu,

Yu‐En Sun

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 16, 2024

Abstract The current bottleneck in the development of efficient photocatalysts for hydrogen evolution is limited availability high‐performance acceptor units. Over past nine years, dibenzo[b,d]thiophene sulfone (DBS) has been preferred choice unit. Despite extensive exploration alternative structures as potential replacements DBS, a superior substitute remains elusive. In this study, symmetry‐breaking strategy was employed on DBS to develop novel unit, BBTT‐1SO. asymmetric structure BBTT‐1SO proved beneficial increasing multiple moment and polarizability. BBTT‐1SO‐containing polymers showed higher efficiencies than their DBS‐containing counterparts by up 166 %. PBBTT‐1SO exhibited an excellent rate (HER) 222.03 mmol g −1 h apparent quantum yield 27.5 % at 500 nm. Transient spectroscopic studies indicated that BBTT‐1SO‐based facilitated electron polaron formation, which explains HERs. also 14 HER natural seawater splitting deionized water splitting. Molecular dynamics simulations highlighted enhanced water‐PBBTT‐1SO polymer interactions salt‐containing solutions. This study presents pioneering example unit construction evolution.

Language: Английский

Citations

6
Precise design of TiO2 photocatalyst for efficient photocatalytic H2 production from seawater splitting DOI

Zhijie Cheng,

Xinyi Zhang,

Chunling Bo

et al.

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 55, P. 542 - 549

Published: Dec. 3, 2023

Language: Английский

Citations

15
Engineering electron delocalization of ultrathin covalent organic framework nanosheets to elevate photocatalytic hydrogen evolution in seawater DOI

Qihong Yue,

Zhihao Zhang, Xiaoling Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160481 - 160481

Published: Feb. 1, 2025

Language: Английский

Citations

0
In-situ generated CQDs-doped Ni(OH)2 nanosheets with high photoelectric activity on nickel foam for efficient hydrogen evolution reaction in alkaline solution DOI

Yanqing Cong,

Qiuang Zheng,

Xiaoran Wang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 70, P. 71 - 78

Published: May 17, 2024

Language: Английский

Citations

3
Performance and Solution Structures of Side‐Chain‐Bridged Oligo (Ethylene Glycol) Polymer Photocatalysts for Enhanced Hydrogen Evolution under Natural Light Illumination DOI Open Access
Tse‐Fu Huang,

Jia‐Jen Liu,

Ze‐Yu Lai

et al.

Small, Journal Year: 2023, Volume and Issue: 20(6)

Published: Oct. 6, 2023

Abstract Converting solar energy into hydrogen using conjugated polymers (CP) is a promising solution to the crisis. Improving water solubility plays one of critical factors in enhancing evolution rate (HER) CP photocatalysts. In this study, novel concept incorporating hydrophilic side chains connect backbones CPs improve their HER proposed. This realized through polymerization carbazole units bridged with octane, ethylene glycol, and penta‐(ethylene glycol) form three new side‐chain‐braided (SCB) CPs: PCz2S‐OCt , PCz2S‐EG PCz2S‐PEG . Verified transient absorption spectra, enhanced capability for ultrafast electron transfer reduced recombination effects has been demonstrated. Small‐ wide‐angle X‐ray scattering (SAXS/WAXS) analyses reveal that these SCB‐CPs cross‐linking networks different mass fractal dimensions ( f) aqueous solution. With lowest f value 2.64 improved water/polymer interfaces, demonstrates best HER, reaching up 126.9 µmol h −1 pure water‐based photocatalytic Moreover, exhibits comparable performance seawater‐based under natural sunlight. situ SAXS analysis further reveals nucleation‐dominated generation nanoclusters size ≈1.5 nm light illumination.

Language: Английский

Citations

8
Furan-based conjugated polymer photocatalysts for highly active photocatalytic hydrogen evolution under visible light DOI

Shenglin Jin,

Changzhi Han,

Sihui Xiang

et al.

Journal of Catalysis, Journal Year: 2023, Volume and Issue: 427, P. 115091 - 115091

Published: Aug. 7, 2023

Language: Английский

Citations

7
3D-Printable and Robust All-in-One Polymer-Entangled Photocatalytic Microreactors for Visible-Light-Driven Hydrogen Evolution DOI
Li‐Yu Ting,

Bing‐Heng Li,

Qian-Ci Huang

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(2), P. 657 - 664

Published: Jan. 4, 2024

Hydrogels show promise in preventing inorganic catalysis aggregation during hydrogen evolution. However, the incompatible intrinsic properties of inorganics and hydrogels can cause catalyst release reaction. One solution is incorporating polymer photocatalysts into hydrogels, but low photocatalytic efficiency due to anti-synergetic effects between polymers remains a challenge. Herein, we developed all-in-one microreactors (PMRs) with excellent stability by strongly entangling designing heterogeneous hydrogels. This approach prevents loss while achieving high evolution efficiency, self-healability, stretchability. Moreover, PMRs maintain their even after they undergo freeze-drying rehydration. Remarkably, demonstrate construction three-dimensional (3D) structures via 3D-printing at room temperature without additional supporting material. In light these advantages, have demonstrated strategy for rapidly manufacturing stability, reactivity, 3D-printability, which has significant potential practical applications.

Language: Английский

Citations

1