Modulation of Free Carbon Structures in Polysiloxane-Derived Ceramics for Anode Materials in Lithium-Ion Batteries DOI Creative Commons

Yiling Quan,

Changhao Hu,

Peifeng Feng

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4461 - 4461

Published: Sept. 20, 2024

Polymer-derived silicon oxycarbide (SiOC) ceramics have garnered significant attention as novel silicon-based anode materials. However, the low conductivity of SiOC is a limiting factor, reducing both their rate capability and cycling stability. Therefore, controlling free carbon content its degree graphitization within crucial for determining battery performance. In this study, we regulated using divinylbenzene (DVB) controlled with transition metal iron (Fe). Through simple pyrolysis process, synthesized ceramic materials (CF) investigated impact Fe-induced changes in phase amorphous on comprehensive electrochemical The results demonstrated that increasing DVB precursor enhanced content, while addition Fe promoted induced formation nanotubes (CNTs). performance showed CF electrode material exhibited high reversible capacity approximately 1154.05 mAh g−1 at current density 100 mA maintained good stability after 1000 cycles 2000 g−1.

Language: Английский

Carbon-enriched PDC-SiC with enhanced electromagnetic wave absorption: A study examining the impact of branched molecular chains in precursor DOI
Wen Yang, Chong Liu, Yongzhao Hou

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160189 - 160189

Published: Feb. 1, 2025

Language: Английский

Citations

2
Highly functional LiXPON (X=Al, Si, C, Sn, Y, Ta) electrolytes for silicon/silicon oxycarbide composite all-solid-state batteries: first-principles design and experimental validation DOI
Changgui Xu, Jing Tu, Duo Yang

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: 59, P. 105981 - 105981

Published: Feb. 1, 2025

Language: Английский

Citations

0
Novel structured hollow-C@SiOxFy nanospheres with NF3 fluorination for superior lithium-ion batteries: The role of SiOxFy in anode materials DOI

Seongjae Myeong,

Chung Gi Min,

Seoyeong Cheon

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162650 - 162650

Published: April 1, 2025

Language: Английский

Citations

0
A General and Convenient Strategy to Synthesize Spinel A0.5fe2.5o4/Porous Carbon Nanosheet (a = Co, Cu, Mn, Mg, Fe) Composites as Anodes for Lithium Ion Batteries DOI
Dan Zhang, Xuerui Li,

Jia Lin Sun

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Polyhedral Oligomeric Silsesquioxane-Based SiOC Coating for Robust Silicon Nanoparticle Anodes in Lithium-Ion Batteries DOI

Kairan Li,

Zhijie Jiang, Liewen Guo

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 20, 2025

Language: Английский

Citations

0
Highly Sensitive CNT‐Sponge Triboelectric Vibration Sensor for Machinery Monitoring DOI
Yongjiu Zou, Yi Zeng, Lu Xu

et al.

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

Published: May 21, 2025

Abstract With advances in automation and intelligent manufacturing, where mechanical vibration monitoring has become critical for equipment health assessment, a high‐sensitivity triboelectric sensor using carbon nanotube (CNT)‐modified conductive sponge architecture is proposed. The developed consists of porous matrix uniformly coated with solution fluorinated ethylene‐propylene (FEP) film. Systematic characterization revealed that the CNT‐functionalized exhibited remarkable enhancement output voltage (ΔV = 204% at 80 m −1 s 2 acceleration) compared to original counterparts, demonstrating superior sensitivity (4.47 mV m⁻¹ ) across an extended acceleration range (5–80 ). optimized structural configuration (0.1 mm gap, 0.5 thickness) enabled broadband frequency detection from 1 500 Hz. In durability test up 216 000 working cycles, its remains stable, showing no significant attenuation or drift. Moreover, tests conducted on marine such as blowers air compressors further validate sensor's precise capability, measured highly matches actual vibration. This research provides new ideas sensing technology expected be widely applied industries manufacturing shipping, contributing upgrading sustainable development various industries.

Language: Английский

Citations

0
Bioactive Peptide-Based Electroactive Hydrogels for Myocardial Infarction Treatment via Electrical and Microenvironmental Regulation DOI

Qiuhao Luo,

Zhanshan Gao,

Jiahao Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Postmyocardial infarction (MI), oxidative stress and insufficient blood supply contribute to impaired cardiac repair, while the subsequent formation of fibrotic scar tissue, characterized by poor electrical conductivity, further exacerbates dysfunction. Here, we compounded angiogenesis-promoting peptide (KRX) with effective pro-angiogenic effects conductive material carboxylated carbon nanotubes (CNTs) through electrostatic interaction, thus preparing CNT/KRX. Subsequently, prepared electroactive hydrogel (Gel@CK) compounding CNT/KRX natural polysaccharide hydrogel. This design endows both conductivity function promoting angiogenesis. In vitro, showed scavenging reactive oxygen species (ROS), cell compatibility, promoted endothelial MI model, significantly angiogenesis mitigated stress. Furthermore, it effectively shortened Q wave, R wave S (QRS) interval enhanced tissue integration. The indices measured echocardiography tests immunohistochemical analyses indicate that has improved reduced infarct size. composite demonstrates remarkable therapeutic potential for cardiovascular diseases dual modulation myocardial microenvironment activity.

Language: Английский

Citations

0
Si@C@MoO2 spherical superstructure to optimize the volume effect and fast diffusion kinetics for lithium storage DOI
Changyu Liu, Yangyang Liu, Beibei Wang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1009, P. 176944 - 176944

Published: Oct. 10, 2024

Language: Английский

Citations

2
Amorphous SiOC-Coated Submicron Mullite Aerogels with Excellent Thermal and Structural Stability up to 1500 ℃ DOI

Qi You,

Zhiming Wu, Yongjun Li

et al.

Journal of the European Ceramic Society, Journal Year: 2024, Volume and Issue: unknown, P. 117079 - 117079

Published: Nov. 1, 2024

Language: Английский

Citations

2
Modulation of Free Carbon Structures in Polysiloxane-Derived Ceramics for Anode Materials in Lithium-Ion Batteries DOI Creative Commons

Yiling Quan,

Changhao Hu,

Peifeng Feng

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4461 - 4461

Published: Sept. 20, 2024

Polymer-derived silicon oxycarbide (SiOC) ceramics have garnered significant attention as novel silicon-based anode materials. However, the low conductivity of SiOC is a limiting factor, reducing both their rate capability and cycling stability. Therefore, controlling free carbon content its degree graphitization within crucial for determining battery performance. In this study, we regulated using divinylbenzene (DVB) controlled with transition metal iron (Fe). Through simple pyrolysis process, synthesized ceramic materials (CF) investigated impact Fe-induced changes in phase amorphous on comprehensive electrochemical The results demonstrated that increasing DVB precursor enhanced content, while addition Fe promoted induced formation nanotubes (CNTs). performance showed CF electrode material exhibited high reversible capacity approximately 1154.05 mAh g−1 at current density 100 mA maintained good stability after 1000 cycles 2000 g−1.

Language: Английский

Citations

0