Hierarchical porous carbons derived from medicine residue for zinc ion hybrid capacitors DOI

Yutian Shao,

Haowen Zhang,

Ruirui Zhu

et al.

Ionics, Journal Year: 2024, Volume and Issue: 30(11), P. 7551 - 7556

Published: Aug. 19, 2024

Language: Английский

NH4+-Modulated Cathodic Interfacial Spatial Charge Redistribution for High-Performance Dual-Ion Capacitors DOI Creative Commons
Yumin Chen, Ziyang Song,

Yaokang Lv

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Jan. 27, 2025

Abstract Compared with Zn 2+ , the current mainly reported charge carrier for zinc hybrid capacitors, small-hydrated-sized and light-weight NH 4 + is expected as a better one to mediate cathodic interfacial electrochemical behaviors, yet has not been unraveled. Here we propose an -modulated cationic solvation strategy optimize spatial distribution achieve dynamic /NH co-storage boosting Zinc capacitors. Owing hierarchical solvated structure in Zn(CF 3 SO ) 2 –NH CF electrolyte, high-reactive small-hydrate-sized (H O) induce Helmholtz plane reconfiguration, thus effectively enhancing density activate 20% capacity enhancement. Furthermore, adsorbed hydrated ions afford high-kinetics ultrastable C‧‧‧H (NH storage process due much lower desolvation energy barrier compared heavy rigid Zn(H 6 (5.81 vs. 14.90 eV). Consequently, physical uptake multielectron redox of carbon cathode enable capacitor deliver high (240 mAh g −1 at 0.5 A ), large-current tolerance (130 50 ultralong lifespan (400,000 cycles). This study gives new insights into design cathode–electrolyte interfaces toward advanced zinc-based storage.

Language: Английский

Citations

5
Crystalline‐Amorphous Phase and Oxygen Vacancies Synergistically Regulate Vanadium Electronic States for Unleashing Zinc‐Ion Storage Performance DOI Open Access
Jingyu Sun, Li Zhang, Fengbo Li

et al.

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

Published: March 20, 2025

Abstract Zinc‐ion capacitors (ZICs) are emerging as a compelling choice for energy storage in future, promising high power and densities coupled with eco‐friendly characteristics. This work presents novel approach to enhance the performance of ZICs by employing one‐step solvothermal synthesis growth V‐MOF on surface V 2 CT X ‐MXene, followed annealing fabricate 3D cross‐linked VO /V ‐MXene‐x(VO /MXene‐x) composite. The unique structure demonstrates excellent conductivity redox reaction activity, which significantly shortens Zn 2+ diffusion path. Moreover, intertwined crystalline‐amorphous efficiently suppresses lattice volume expansion during (de)intercalation. Density functional theory (DFT) reveals that amorphous O 5 enhances conductivity, lowers capture barrier, improves charge transfer efficiency. introduction oxygen vacancies further electronic transport. /MXene‐4 composite exhibits specific capacity 336.39 mAh g −1 at 1 A , maintaining 213.06 10 indicating outstanding rate performance, along an density 356.27 Wh kg 1280 W . offers insights design electrode materials feature phases, providing valuable into ion transport mechanisms strategies kinetics.

Language: Английский

Citations

2
A two-pronged strategy to boost the capacitive deionization performance of nitrogen-doped porous carbon nanofiber membranes DOI
Xiang Ma, Jian Wang,

Zhaoyuan Zhu

et al.

Desalination, Journal Year: 2024, Volume and Issue: 594, P. 118293 - 118293

Published: Nov. 8, 2024

Language: Английский

Citations

9
In-situ engineering of centralized mesopores and edge nitrogen for porous carbons toward zinc ion hybrid capacitors DOI
Caiwei Wang, Zicheng Li, Wenli Zhang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 674 - 684

Published: Jan. 21, 2025

Language: Английский

Citations

1
Assembly of high-performance zinc-ion hybrid capacitor using soy residue-derived porous carbon as cathode and HCl treated zinc foil as anode DOI
Song Wang, Xue Jia,

Xuecheng Chen

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 114, P. 115616 - 115616

Published: Feb. 10, 2025

Language: Английский

Citations

1
Hierarchical porous yet dense phenolic resin-based carbons for enhanced volumetric capacitances in zinc-ion hybrid capacitors DOI

Tong Li,

Yongwei Pei,

Xinren Zhang

et al.

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120107 - 120107

Published: Feb. 1, 2025

Language: Английский

Citations

1
Tuning the pore structure of N/O co-doped porous carbon nanosheets for high-performance supercapacitors and zinc-ion capacitors DOI
Ying Sun, Zhe Sheng, E. Chen

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 118, P. 35 - 45

Published: March 17, 2025

Language: Английский

Citations

1
Boosting Zn‐Ion Storage Behavior of Pre‐Intercalated MXene with Black Phosphorus toward Self‐Powered Systems DOI Creative Commons
Cuiqin Fang, Jing Han,

Qingjun Yang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(40)

Published: Aug. 29, 2024

Abstract MXene‐based Zn‐ion capacitors (ZICs) with adsorption‐type and battery‐type electrodes demonstrate high energy storage anti‐self‐discharge capabilities, potentially being paired triboelectric nanogenerators (TENGs) to construct self‐powered systems. Nevertheless, inadequate interlayer spacing, deficient active sites, compact self‐restacking of MXene flakes pose hurdles for ZICs, limiting their applications. Herein, black phosphorus (BP)‐Zn‐MXene hybrid is formulated ZIC via a two‐step molecular engineering strategy pre‐intercalation BP nanosheet assembly. Zn ions as intercalators induce cross‐linking expandable spacing serve scaffolds nanosheets, thereby providing sufficient accessible sites efficient migration routes enhanced storage. The density functional theory calculations affirm that zinc adsorption diffusion kinetics are significantly improved in the hybrid. A wearable delivers competitive areal 426.3 µWh cm −2 ultra‐low self‐discharge rate 7.0 mV h −1 , achieving remarkable electrochemical matching TENGs terms low loss, matched capacity, fast resultant system efficiently collects stores from human motion power microelectronics. This work advances ZICs synergy TENG

Language: Английский

Citations

6
Hollow Nitrogen-Doped Carbon Nanofibers for Flexible Zinc-Ion Capacitors DOI
Lin‐Hai Han, Fen Qiao, Wenjie Liu

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(17), P. 20498 - 20508

Published: Aug. 20, 2024

Hollow spindle-like porous nitrogen-doped carbon nanofibers (HS-PNCNFs) were synthesized and chosen as cathode materials for flexible zinc-ion capacitors (FZICs). The synthesis was achieved through a combination of electrospinning heat treatment techniques, incorporating poly(tetrafluoroethylene) nanoparticles (PTFE NPs) sacrificial templates. This approach led to the creation an open hollow structure within fibers, significantly including enhancing their high specific surface area (SSA) defect level. When utilized material in aqueous (AZICs), HS-PNCNFs exhibited impressive performance, capacity 105 mAh g–1 at 0.2 A g–1, excellent rate performance retaining 60% 10 remarkable cycling stability maintaining 89.4% after 25,000 cycles. Additionally, FZICs, HS-PNCNF satisfactory energy density, even 150 folding/unfolding work not only demonstrates controllable fabrication method hierarchical with rich defects but also highlights vast potential storage devices. successful application AZICs FZICs suggests broad applicability various applications demanding flexibility.

Language: Английский

Citations

4
Response surface optimization of coal tar-based porous carbon and its supercapacitor performance analysis DOI
Peng Wu, Xinyuan Xu, Yongqiang Xue

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: 514, P. 145660 - 145660

Published: Jan. 5, 2025

Language: Английский

Citations

0