Enhancement of covalent triazine framework containing S heteroatom for photocatalytic hydrogen evolution: The role of composite PEG DOI

Chan Yao,

Shuhao Wang,

Yixuan Zha

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(29), P. 12976 - 12980

Published: Jan. 1, 2024

The higher the content of PEG filled in pores TTBT-COF, hydrogen evolution rate. photocatalytic rate TTBT-COF@PEG 30 is 1.51 times that pristine TTBT-COF.

Language: Английский

Self‐Healing and Toughness Triboelectric Materials Enabled by Dynamic Nanoconfinement Quenching DOI
Tong Zhao, Jinlong Wang,

Yanhua Liu

et al.

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

Published: July 21, 2024

Abstract Self‐healing materials that integrate excellent mechanical properties and high healing efficiency meet the requirements of flexible electronic sensors for flexibility reliability. In field wearable devices, they are great significance improving stability equipment reducing frequency replacement. However, strength often limits their self‐healing ability. When damage occurs, it will hinder microstructural adjustment fluidity material at damaged site, thus negatively affecting activation execution mechanism. this study, a strength‐toughness room‐temperature triboelectric is prepared by dynamic nanoconfinement effect quenching ethanol (referred to as DNCQ strategy). The improves aggregation nanocluster phase, constructed nanoconfined network skillfully balances contradiction between obtained has tensile (27.1 MPa), toughness (97.9 MJ m −3 ), (88.6%). self‐powered pressure distribution sensing array based on can accurately reflect object, which potential application prospects in devices.

Language: Английский

Citations

22
Solid-Phase Electrochemiluminescence Enzyme Electrodes Based on Nanocage Arrays for Highly Sensitive Detection of Cholesterol DOI Creative Commons

Xinying Ma,

Zhe Zhang, Yanyan Zheng

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(8), P. 403 - 403

Published: Aug. 21, 2024

The convenient and sensitive detection of metabolites is great significance for understanding human health status drug development. Solid-phase electrochemiluminescence (ECL) enzyme electrodes show potential in metabolite based on the enzyme-catalyzed reaction product hydrogen peroxide (H2O2). Herein, a solid-phase ECL sensor was fabricated confined emitter an immobilized using electrostatic nanocage array, constructing platform cholesterol. cage nanochannel consists bipolar bilayer vertically aligned mesoporous silica film (bp-VMSF). upper layer bp-VMSF amino-modified, positively charged VMSF (p-VMSF), lower negatively (n-VMSF). most commonly used probe tris(bipyridine)ruthenium(II) (Ru(bpy)32+) fixed n-VMSF by adsorption from repulsion p-VMSF, generating significantly enhanced stable signals. successful preparation characterized scanning electron microscopy (SEM) electrochemical methods. After amino groups outer surface were derivatized with aldehyde, cholesterol oxidase (ChOx) molecules covalently immobilized. construction electrode cyclic voltammetry (CV) impedance spectroscopy (EIS). When corresponding substrate, cholesterol, present solution, signal Ru(bpy)32+ quenched H2O2, enabling high-sensitivity linear range detecting 0.05 mM to 5.0 mM, limit (LOD) 1.5 μM.

Language: Английский

Citations

14
Defect engineering and Ni promoter synergistically accelerating electron transfer to Ru0 sites in UiO-66(Ce) for dicyclopentadiene hydrogenation under mild condition DOI
Rushuo Li, Tao Ban,

Danfeng Zhao

et al.

Nano Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 7, 2024

Language: Английский

Citations

9
Understanding the Dynamic Evolution of Active Sites among Single Atoms, Clusters, and Nanoparticles DOI Open Access

Hongchen Yang,

Pengfei Duan, Zechao Zhuang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Abstract Catalysis remains a cornerstone of chemical research, with the active sites catalysts being crucial for their functionality. Identifying sites, particularly during reaction process, is elucidating relationship between catalyst's structure and its catalytic property. However, dynamic evolution within heterogeneous metal presents substantial challenge accurately pinpointing real sites. The advent in situ operando characterization techniques has illuminated path toward understanding changes offering robust scientific evidence to support rational design catalysts. There pressing need comprehensive review that systematically explores among single atoms, clusters, nanoparticles as utilizing techniques. This aims delineate effects various factors on nanoparticles. Moreover, several are elaborated emphases tracking linking them properties. Finally, it discusses challenges future perspectives identifying process advancing

Language: Английский

Citations

1
Pyrimidine-containing covalent organic frameworks for efficient photosynthesis of hydrogen peroxide via one-step two electron oxygen reduction process DOI
Hongyu Chen, Hao Zhang, Kai Chi

et al.

Nano Research, Journal Year: 2024, Volume and Issue: 17(11), P. 9498 - 9506

Published: Aug. 17, 2024

Language: Английский

Citations

8
Recent advances in improving utilization efficiency of precious metal catalysts for hydrogen generation from hydrolysis of ammonia borane DOI
Wenjing Xu, Mei Liu,

Kexin Xu

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 529, P. 216445 - 216445

Published: Jan. 13, 2025

Language: Английский

Citations

0
The competitive influence of the intramolecular electric field and hydrophilic active sites of D–A conjugated porous polymers on photocatalytic hydrogen evolution performance DOI
Yongzhen Yang, Fei Zhao, Xinyi Feng

et al.

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Conjugated porous polymers (CPPs) with a donor–acceptor (D–A) molecular structure usually exhibit good photocatalytic hydrogen evolution (PHE).

Language: Английский

Citations

0
Confining metal nanoparticles and nanoclusters in covalent organic frameworks for biosensing and biomedicine DOI

Jianxin Ma,

Zhongjie Cai,

Faisal Ahmad

et al.

Biosensors and Bioelectronics, Journal Year: 2025, Volume and Issue: unknown, P. 117461 - 117461

Published: April 1, 2025

Language: Английский

Citations

0
Asymmetric Atomic Pt–B Dual-Site Catalyst for Efficient Photoreforming of Waste Polylactic Acid Plastics in Seawater DOI

Zongyang Ya,

Mei Li, Dong Xu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Waste plastic has imposed significant burdens on marine ecosystems. Converting into high-value products via photocatalysis is an emerging and promising approach, but its low activity product selectivity pose great challenges. Herein, we report a carbon nitride-anchored atomically dispersed Pt-B dual-site catalyst (Pt SA/BCN100) for the photoreforming of polylactic acid (PLA) chemicals H2 in seawater. Experiments DFT calculations reveal that significantly enhanced charge transfer occurs between Pt site B site, hole-rich can selectively trigger activation cleavage C-H C-C bonds PLA to form acetic (AA), while electron-rich drives reduction H protons H2. As result, SA/BCN100 exhibits high evolution rate 993 μmol gcatal-1 h-1 AA production 300 with over 98%. We also demonstrate direct g-scale real-world wastes concentrations microplastics natural Techno-economic analysis environmental assessment show this catalytic system reduce emissions potential commercial value.

Language: Английский

Citations

0
Role of transmission electron microscopy in heterogeneous structural nanomaterials for photocatalytic applications DOI

Chunqiang Zhuang,

Can Zhang, Dong Zhang

et al.

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0