Hollow-Structured Carbon-Coated CoxNiySe2 Assembled with Ultrasmall Nanoparticles for Enhanced Sodium-Ion Battery Performance DOI Creative Commons
Chao Wang,

Weijie Si,

Xiongwu Kang

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(3), P. 96 - 96

Published: March 20, 2025

Transition metal selenides are considered one of the most promising materials for sodium-ion battery anodes due to their excellent theoretical capacity. However, it remains challenging suppress volume variation and resulted capacity decay during charge–discharge process. Herein, hollow-structured CoNiSe2 dual transition wrapped in a carbon shell (HS-CoxNiySe2@C) were deliberately designed prepared through sequential coating polyacrylonitrile (PAN), ion exchange ZIF-67 with Ni2+ ions, carbonization/selenization. The hollow structure was evidenced by transmission electron microscopy, crystalline confirmed X-ray diffraction. ample internal space HS-CoxNiySe2@C effectively accommodated expansion charge discharge processes, large surface area enabled sufficient contact between electrode electrolyte shortened diffusion path sodium ions feasible electrochemical reaction. ionic conductivity strongly dependent on ratio Co Ni. synergistic effect Ni enhanced mobility HS-CoxNiySe2@C, thereby improving transfer efficiency. By taking into account structural advantages rational selenide ratios, significant improvements can be achieved cycling performance, rate overall stability batteries. optimized demonstrated reversible remained at 334 mAh g−1 after 1000 cycles high current 5.0 A g−1.

Language: Английский

MOF and MOF-derived composites for flexible energy storage devices DOI
Yingying Wang,

Tao Pan,

Guoqiang Yuan

et al.

Composites Communications, Journal Year: 2024, Volume and Issue: 52, P. 102144 - 102144

Published: Nov. 3, 2024

Language: Английский

Citations

10
Metal–Organic Framework-Based Nanostructures for Electrochemical Sensing of Sweat Biomarkers DOI Creative Commons
Jing Meng, Moustafa Zahran,

Xiaolin Li

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(10), P. 495 - 495

Published: Oct. 12, 2024

Sweat is considered the most promising candidate to replace conventional blood samples for noninvasive sensing. There are many tools and optical electrochemical methods that can be used detecting sweat biomarkers. Electrochemical known their simplicity cost-effectiveness. However, they need optimized in terms of selectivity catalytic activity. Therefore, electrode modifiers such as nanostructures metal-organic frameworks (MOFs) or combinations them were examined boosting performance sensors. The MOF structures prepared by hydrothermal/solvothermal, sonochemical, microwave synthesis, mechanochemical, methods. Additionally, controlling synthesis conditions mixing bulk MOFs with nanoparticles (NPs). In this review, we spotlight previously MOF-based well ones determination presence NPs strongly improves electrical conductivity structures, which poor conductivity. Specifically, Cu-MOF Co-MOF biomarkers lowest detection limits. Different methods, amperometric, voltammetric, photoelectrochemical, monitoring signal Overall, these materials brilliant

Language: Английский

Citations

4
Gold Nanoparticles-Supported Iron Oxide Particles Endows Bone Scaffolds with Anti-tumor Function DOI
Tiantian He, Wenjing Yang, Youwen Yang

et al.

Free Radical Research, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: Feb. 12, 2025

Iron oxide (Fe-O) has anti-tumor properties, due to its ability of catalyzing hydrogen peroxide (H2O2) tumor cells generate reactive oxygen species (ROS) and then cause ferroptosis. Its performance is restricted insufficient H2O2 in cells. A nanomedicine, Au nanoparticles (NPs) grown on Fe-O, was integrated into poly-l-lactide (PLLA) scaffolds. Results indicated that NPs could consume glucose produce H2O2, which supplemented reaction substrate. PLLA/Au@Fe-O scaffold showed enhanced activities against MG63, including increased mortality, decreased migration colony formation. promoted ferroptosis up-regulation COX-2 protein, down-regulation FTH1 protein GPX4 protein. also autophagy P62 LC3BII/I. Mechanistically, possessed through promoting autophagy.

Language: Английский

Citations

0
Hollow-Structured Carbon-Coated CoxNiySe2 Assembled with Ultrasmall Nanoparticles for Enhanced Sodium-Ion Battery Performance DOI Creative Commons
Chao Wang,

Weijie Si,

Xiongwu Kang

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(3), P. 96 - 96

Published: March 20, 2025

Transition metal selenides are considered one of the most promising materials for sodium-ion battery anodes due to their excellent theoretical capacity. However, it remains challenging suppress volume variation and resulted capacity decay during charge–discharge process. Herein, hollow-structured CoNiSe2 dual transition wrapped in a carbon shell (HS-CoxNiySe2@C) were deliberately designed prepared through sequential coating polyacrylonitrile (PAN), ion exchange ZIF-67 with Ni2+ ions, carbonization/selenization. The hollow structure was evidenced by transmission electron microscopy, crystalline confirmed X-ray diffraction. ample internal space HS-CoxNiySe2@C effectively accommodated expansion charge discharge processes, large surface area enabled sufficient contact between electrode electrolyte shortened diffusion path sodium ions feasible electrochemical reaction. ionic conductivity strongly dependent on ratio Co Ni. synergistic effect Ni enhanced mobility HS-CoxNiySe2@C, thereby improving transfer efficiency. By taking into account structural advantages rational selenide ratios, significant improvements can be achieved cycling performance, rate overall stability batteries. optimized demonstrated reversible remained at 334 mAh g−1 after 1000 cycles high current 5.0 A g−1.

Language: Английский

Citations

0