Enhanced Photocatalytic CO2 Reduction via MXene synergism: Constructing a Strong Intra-layer Electric Field Ternary Heterojunction of g-C3N4/Nb2C MXene/CsPbBr3 DOI Creative Commons
Shiding Zhang, Yuhua Wang, Gaber A.M. Mersal

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract Slow charge kinetics and high activation energy seriously hinder the efficiency of photocatalytic CO2.Synergies are a commonly used strategy, Nevertheless common synergies have been limited to improving catalytic results.Here, we synthesize novel nanocomposite ternary heterojunction material, which forms low interlayer electrostatic potential within through MXene synergistic.A strong internal electric field from outside inside is formed series layer heterojunction, provides inner driving force for effective spatial separation photoinduced electron-hole pairs. Under visible-light irradiation, exhibited maximum CO production rate 53.07 μmol g-1 h-1, surpassing rates pure g-C3N4, CsPbBr3 QDs, binary composite g-C3N4/CsPbBr3 by approximately 8.4, 10, 2 times, respectively. Experimental results theoretical analysis reveal significance 2D Nb2C as an electron transporter, benefiting lower potential. This characteristic synergistically facilitated rapid extraction electrons, enhancing reduction ability CO2 CO. research not only insight into utilization designing photocatalysts but also presents utilizing synergism composites improve solar conversion efficiency.

Language: Английский

Organic-ion in-situ intercalated MoS2 for optimizing sluggish diffusion kinetic of Ti3C2 MXene film in sodium-ion capacitor DOI

Mingzhu Ma,

Weixin Wang, Ziyu Li

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162548 - 162548

Published: Jan. 1, 2025

Language: Английский

Citations

1
MnO2 Nanoflower Intercalation on Ti3C2Tx MXene With Expanded Interlayer Spacing for Flexible Asymmetric Supercapacitors DOI Creative Commons
Yi Zhang,

Can Tang,

Shun Lu

et al.

Carbon Neutralization, Journal Year: 2025, Volume and Issue: 4(3)

Published: April 9, 2025

ABSTRACT Supercapacitors are promising energy storage solutions known for their high‐power density, fast charge–discharge rates, and long cycle life. Recently, Ti 3 C 2 T x MXene, a member of the 2D MXene family, has emerged as potential electrode material supercapacitors. However, its limited interlayer spacing hinders broader applications. In this study, we introduce novel δ‐MnO @MXene heterostructure with expanded spacing, synthesized using hydrothermal approach. This design enhances charge transfer efficiency improves contact between components, significantly boosting supercapacitor performance. The unique nanoflower‐like structure combined substantially capacitance retention ion diffusion, surpassing performance each individual material. sponge‐like architecture increases accessible sites widens gaps in facilitating better migration. As result, exhibits 54 times greater than alone (2.0 F g⁻¹), an impressive rate capability 67.3% (after 20‐fold increase current density), exceptional cycling stability, maintaining 93% capacity after 10,000 cycles. electrochemical performance, making it candidate advanced

Language: Английский

Citations

0
External Electric Field Enhanced Ti3C2 MXene Surface Passivation for Realizing Ultra‐Long Cycling Stability DOI
Weixin Wang,

Mingzhu Ma,

Yuting Song

et al.

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

Published: April 17, 2025

Abstract External electric field (EEF), as a stimulating factor, is an effective method for optimizing the surface composition and structure of materials. Ti 3 C 2 MXene enriched with negatively charged functional groups (─OH, ─O, etc.) will exhibit high sensitivity to EEF. However, impact EEF on interaction mechanisms between guest ions remains unclear requires further investigation. Herein, density theory (DFT) employed simulate adsorption energies butyl trimethylammonium ion (BTA + ) surfaces under different intensities EEFs (±0.9, ±0.7, ±0.5, ±0.3, ±0.1, 0 V Å −1 ), indicating can effectively regulate adsorption. It increase encapsulation degree BTA surface, thereby enhancing passivation. Based theoretical predictions, quaternary‐ammonium chain‐lengths , DTA STA are selected unveil mechanism The applied‐EEF promotes formation Ti─O─N bonds ─OH ammonium construct more‐denser protective layer, leading enhancement passivation obviously increasing capacitance retention after 100,000 cycles (50.8% 97.5%). This work provides new pathway support MXene.

Language: Английский

Citations

0
Enhanced photocatalytic CO2 reduction via MXene synergism: constructing an efficient heterojunction structure of g-C3N4 /Nb2C /CsPbBr3 DOI
Shiding Zhang, Yuhua Wang, Gaber A.M. Mersal

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 7(6)

Published: Nov. 6, 2024

Language: Английский

Citations

3
Optimizing 2H–MoS2 through organic intercalation and constructing heterostructures with MXene towards enhanced supercapacitor performance DOI
Yi Zhang, Qingling Jia,

Mingzhu Ma

et al.

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 43, P. 102477 - 102477

Published: Dec. 23, 2024

Language: Английский

Citations

2
Enhanced Photocatalytic CO2 Reduction via MXene synergism: Constructing a Strong Intra-layer Electric Field Ternary Heterojunction of g-C3N4/Nb2C MXene/CsPbBr3 DOI Creative Commons
Shiding Zhang, Yuhua Wang, Gaber A.M. Mersal

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract Slow charge kinetics and high activation energy seriously hinder the efficiency of photocatalytic CO2.Synergies are a commonly used strategy, Nevertheless common synergies have been limited to improving catalytic results.Here, we synthesize novel nanocomposite ternary heterojunction material, which forms low interlayer electrostatic potential within through MXene synergistic.A strong internal electric field from outside inside is formed series layer heterojunction, provides inner driving force for effective spatial separation photoinduced electron-hole pairs. Under visible-light irradiation, exhibited maximum CO production rate 53.07 μmol g-1 h-1, surpassing rates pure g-C3N4, CsPbBr3 QDs, binary composite g-C3N4/CsPbBr3 by approximately 8.4, 10, 2 times, respectively. Experimental results theoretical analysis reveal significance 2D Nb2C as an electron transporter, benefiting lower potential. This characteristic synergistically facilitated rapid extraction electrons, enhancing reduction ability CO2 CO. research not only insight into utilization designing photocatalysts but also presents utilizing synergism composites improve solar conversion efficiency.

Language: Английский

Citations

0