Electronic regulation of carbon sites by oxygenated groups for electrochemical oxygen reduction to H2O2 DOI
Yin Wang, Tingting Zhang, Dongyong Li

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(35), P. 23398 - 23405

Published: Jan. 1, 2024

A mild condition controllable synthesis of –CHO regulates the electronic state carbon sites for selective electrochemical oxygen reduction to H 2 O .

Language: Английский

Selective oxygen reduction reaction: mechanism understanding, catalyst design and practical application DOI Creative Commons
Shilong Li, Lei Shi, Yingjie Guo

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(29), P. 11188 - 11228

Published: Jan. 1, 2024

The oxygen reduction reaction (ORR) is a key component for many clean energy technologies and other industrial processes. However, the low selectivity sluggish kinetics of ORR catalysts have hampered conversion efficiency real application these new mentioned before. Recently, tremendous efforts been made in mechanism understanding, electrocatalyst development system design. Here, comprehensive critical review provided to present recent advances field electrocatalytic ORR. two-electron four-electron transfer catalytic mechanisms evaluation parameters are discussed first. Then, up-to-date synthetic strategies

Language: Английский

Citations

22
Host-guest-induced electronic state triggers two-electron oxygen reduction electrocatalysis DOI Creative Commons

Hongni Chen,

Chao Wang,

Han Wu

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 25, 2024

Supramolecular polymers possess great potential in catalysis owing to their distinctive molecular recognition and dynamic crosslinking features. However, investigating supramolecular electrocatalysts with high efficiency oxygen reduction reaction hydrogen peroxide (ORHP) remains an unexplored frontier. Herein, we present organic for ORHP by introducing cyclodextrin-containing noncovalent building blocks, affording these supramolecules abundant bonds. The electronic states kinetics are further well-modulated via a host-guest strategy, resulting appropriate regional electron binding force controllable chemical activity. Notably, integrating units into phenyl group-containing model covalent polymer achieves production rate of 9.14 mol g

Language: Английский

Citations

17
Hydroxyl-Functionalized Donor–Acceptor Covalent Organic Frameworks for Efficient Photocatalytic Hydrogen Peroxide Production under Visible Light DOI
Dong Cao,

Jingcheng Du,

Jingguo Li

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3584 - 3594

Published: Feb. 13, 2025

Photocatalytic hydrogen peroxide (H2O2) production via the oxygen reduction reaction (ORR) provides a promising and energy-saving alternative to traditional energy-intensive anthraquinone process. Nevertheless, how decrease energy barrier of two-electron (2e–) ORR process photosynthesize H2O2 efficiently is still challenging. Herein, three hydroxyl-functionalized donor–acceptor covalent organic frameworks (COFs) are synthesized for photocatalytic under visible-light irradiation (420 ≤ λ 780 nm). It observed that dihydroxyl functionalization (2,5-DhaTph 2,3-DhaTph) facilitates transportation photogenerated carriers between acceptor donor units accelerates kinetics rate-limiting step when comparing with monohydroxyl (2-DhaTph). Further, 2,5-DhaTph para-position hydroxyl shows higher photosynthesis efficiency than 2,3-DhaTph (ortho-positioned hydroxyl), probably due greater exposure catalytically active sites. This supported by better structural symmetry 2,5-DhaTph, which contributes crystallinity specific surface areas. Electron paramagnetic resonance (EPR) spectra theoretical calculations show produces *OOH intermediates reduced barrier, resulting in high rate 2103.1 μmol h–1 g–1. Regulating amount substituents their location on COFs an effective strategy boost carrier transfer reduce O2-to-H2O2 conversion.

Language: Английский

Citations

3
Efficient photocatalytic H2O2 production and photodegradation of RhB over K-doped g-C3N4/ZnO S-scheme heterojunction DOI

Huagen Liang,

Jingbo Zhao,

Angeliki Brouzgou

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 1120 - 1133

Published: July 30, 2024

Language: Английский

Citations

16
Advanced Nanocarbons Toward two‐Electron Oxygen Electrode Reactions for H2O2 Production and Integrated Energy Conversion DOI
Linjie Zhao,

Riqing Yan,

Baoguang Mao

et al.

Small, Journal Year: 2024, Volume and Issue: 20(43)

Published: July 5, 2024

Abstract Hydrogen peroxide (H 2 O ) plays a pivotal role in advancing sustainable technologies due to its eco‐friendly oxidizing capability. The electrochemical two‐electron (2e − oxygen reduction reaction and water oxidation present an environmentally green method for H production. Over the past three years, significant progress is made field of carbon‐based metal‐free catalysts (C‐MFECs) low‐cost efficient production EP). This article offers focused comprehensive review designing C‐MFECs EP, exploring construction dual‐doping configurations, heteroatom‐defect coupling sites, strategic dopant positioning enhance EP efficiency; innovative structural tuning that improves interfacial reactant concentration promote timely release ; modulation electrolyte electrode interfaces support 2e pathways; application reactors integrated energy systems. Finally, current challenges future directions this burgeoning are discussed.

Language: Английский

Citations

4
A Microenvironment‐Responsive Graphdiyne‐Iron Nanozyme Hydrogel with Antibacterial and Anti‐Inflammatory Effect for Periodontitis Treatment DOI Open Access
Xiaojie Wu, Lu Wang,

Yaning Lu

et al.

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

Published: Dec. 20, 2024

Periodontitis is a chronic inflammatory disease caused by dental plaque, which leads to tooth loosening and shifting or even loss. Current treatments, including mechanical debridement antibiotics, often fail eradicate recalcitrant biofilms mitigate excessive inflammation. Moreover, these interventions can disrupt the oral microbiome, potentially compromising long-term treatment outcomes. To address limitations, an injectable nanoenzyme hydrogel composed of dopamine (DA)-modified hyaluronic acid (HA) scaffold graphdiyne-iron (GDY-Fe) complex, named GDY-Fe@HA-DA, exhibits excellent tissue adhesion, self-healing, antibacterial properties, biocompatibility. Under near-infrared laser irradiation, GDY-Fe@HA-DA effectively eradicates variety pathogens, Escherichia coli, Staphylococcus aureus, Porphyromonas gingivalis, through synergistic combination chemodynamical photothermal therapies. The hydrogel's efficacy further validated in both bacterial-infected skin wounds rat periodontitis models. It alleviates environment promotes wound healing periodontal recovery. This findings highlight potential as promising therapeutic material for other injuries.

Language: Английский

Citations

4
Graphdiyne and its heteroatom−doped derivatives for Li−ion/metal batteries DOI
Hong Shang, Jun Peng,

Yougui Zhou

et al.

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Recent advancements in the synthetic methods, energy storage applications, and new mechanisms related to Li-ion/metal batteries for carbon GDY its heteroatom-doped derivatives.

Language: Английский

Citations

0
Sp-Hybridized Carbon- Facilitated Peroxymonosulfate Activation for Superior Phenolic Pollutant Removal DOI
Pan Yang,

Jinlan Tang,

Zhenhua Ding

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137843 - 137843

Published: March 4, 2025

Language: Английский

Citations

0
Selective Trapping of In(III) Ions under σ-π* Bond Synergistic Effects by Modulating Lewis Basicity of Capture Sites on Nanofibers DOI

Min Li,

Lu Wang, Lin Zhang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Effectively selective recovery and separation of indium from alternative resources are great environmental economic significance. Although adsorption plays a critical role in this process, the design highly capture sites remains challenge. Inspired by molecular orbital theory hard soft acids bases (HSAB), we recognize that nonequivalent hybridization In(III) ions renders them susceptible to deformation, exhibiting softer Lewis acidity. Herein, thioacetamide-modified nanofiber (TAANF), with O═C─NH─C═S as sites, was prepared through an electrospinning technique combined chemical modification. As expected, exhibits basicity via modulated C═S C═O, which better matches acidity improve affinity. Adsorption studies showed TAANF exhibited excellent properties for ions, especially terms selectivity; selectivity coefficients range 20 276 K(I), Ca(II), Na(I), Mg(II), Mn(II), Zn(II), Fe(II) multicomponent system. Furthermore, mechanism indicates not only can accept electrons but also donate rich d2 orbit π orbitals demonstrated XAFS, XPS, DFT. This enables forming stable six-membered ring under synergistic effect σ feedback bonds (σ-π*). Finally, work provides strategy holds promise recovering sources.

Language: Английский

Citations

0
One-pot target-triggered catalytic DNA assembly for PEC nucleic acid assay based on GDY/CuSe modified electrode DOI
Shenghao Zhang, Meiling Zhang,

Yinhao Zhang

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113676 - 113676

Published: April 1, 2025

Language: Английский

Citations

0