2D Porous Ti3C2 MXene as Anode Material for Sodium-Ion Batteries with Excellent Reaction Kinetics

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1100 - 1100

Published: Feb. 27, 2025

Sodium-ion batteries (SIBs) are a promising electrochemical energy storage system but face great challenges in developing fast-charging anodes. MXene-based composites new class of two-dimensional materials that expected to be widely used SIB due their excellent electrical conductivity and stable structure. However, MXenes tend experience interlayer stacking during preparation, which can result poor performance lower actual capacity compared the theoretical value. In this study, porous structure was created using chemical oxidation method from microscopic perspective. The MXene (referred as PM) prepared by low concentration hydrogen peroxide pore-forming solution, enlarged spacing facilitate transport sodium ions electrolyte solution. PM with addition solution achieved high-rate performance, 247 mAh g-1 at 0.1 A 114 10 g-1. It also demonstrated long-cycle stability, 117 maintained over 1000 cycles 5

Language: Английский

---

High-pressure-triggered homodisperse reconstruction of graphene nanosheets for Na ion storage

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

Published: Jan. 1, 2025

Microfluidization enables precise interlayer spacing adjustment and pore structure control in restructured graphene nanosheets, optimizing electron transport efficiency during sodium ion intercalation/extraction.

Language: Английский

---

Regulating (010) Exposed Facets of a Sb₂O₃ Anode to Achieve High-Performance Sodium-Ion Batteries

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

Published: March 21, 2025

Antimony oxide (Sb2O3) exhibits a high theoretical capacity for sodium storage but suffers from poor reaction kinetics and significant volume expansion. Exposing specific crystal facets of an electrode material is considered to be effective strategy reduce the expansion ratio ion diffusion barrier. Here, in situ TEM investigations calculations indicate that exposure (010) Sb2O3 ameliorates reduces Na+ barrier enhance reversible storage. Theoretical also reveal polyvinylpyrrolidone facilitates facets. A facet-engineered nanobelt with exposed (Sb2O3-(010)) demonstrates superior performance, including higher capacity, excellent rate enhanced cycling stability compared conventional Sb2O3. Notably, at 60 °C, Sb2O3-(010) shows properties even maintains 80.6% retention after 200 cycles 5.00 g-1. This work underscores potential crystalline facet engineering improve sodium-ion battery performance.

Language: Английский

---

A self-encapsulation hollow structure design for high-capacity and fast-charging sodium-ion batteries at high-temperature

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161745 - 161745

Published: March 1, 2025

Language: Английский

---

Boosting sodium-ion battery performance through the sodium doped titanium carbide and iron selenide interfaces: Experimental validation and DFT insights

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 127, P. 117096 - 117096

Published: May 21, 2025

Language: Английский

---

Construction of Ti₃C₂T_x MXene with Hopping Migration Mechanism via Deep Eutectic Supramolecular Polymers Anode for Sodium Ion Batteries

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

Published: April 16, 2025

Abstract The potential applications of high‐power sodium‐ion batteries are numerous, including use in distributed energy storage power plants and electric vehicles. In order to develop anode materials with fast reaction kinetics high reversibility, the deep eutectic supramolecular polymers electrode is pioneered. LA‐DESP situ polymerized on Ti 3 C 2 T x MXene surface, resulting that exhibit rapid high‐capacity retention. polymer network constructs channels for high‐speed transport ions electrons, also provides more Na + pseudocapacitance sites. addition, superior mechanical properties help protect structure from damage during cycling, ultrastable storage. hopping migration mechanism through polymer‐constructed ion proposed. As SIBs half‐cells, it exhibits remarkable cycling performance 114.4 mAh g −1 a capacity loss only 5.1% at 1000 mA after 1500 cycles. This study opens new way rationally design promotes application electrodes.

Language: Английский

---

High-performance supercapacitor based on 3D Ti3C2Tx electrodes and sulfonated lignin gel electrolyte

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137948 - 137948

Published: May 1, 2025

Language: Английский

---

Electrochemically Intercalated Ti₃C₂ MXene Bulk for Expanding Interlayer Spacing and Enhancing Supercapacitor Performance

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(43), P. 20633 - 20642

Published: Oct. 12, 2024

Tuning the interlayer spacing of 2D MXenes bulk mainly focuses on hydrothermal intercalation, physiotherapy and ion exchange intercalation. Nevertheless, feasibility electrochemical intercalation technology for expanding Ti

Language: Английский

---

Highly exposed TiO2 (001)/MXene heterostructure with ultrafast kinetics for high-performance sodium storages

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178238 - 178238

Published: Dec. 1, 2024

Language: Английский

---

Atomically selective oxidation of double transition-metal TiVCTX MXene for highly selective Mg2+/Ca2+ separation

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131295 - 131295

Published: Dec. 1, 2024

Language: Английский

---