Orbital and Electrical Dual Function of Polymer Intercalant for Promoting NH4+ Storage in Vanadium Oxide Anode DOI Creative Commons
Yue Zhang, Zihang Huang, Lei Lei

et al.

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

Published: Jan. 26, 2025

Abstract Polymer‐intercalated metal oxides have attracted considerable attention for ammonium ions (NH 4 + ) storage due to their enhanced interlayer space, which, through the pillar effect, facilitates rapid and efficient transport of NH . However, understanding remains limited regarding how polymer intercalants affect intrinsic structure host materials, especially variations in atomic orbital electronic structural induced by intercalants. Herein, a polyaniline‐intercalated vanadium oxide (P‐VO x is developed and, first time, its behavior validated as an anode material. Using various spectroscopy techniques combined with theoretical simulation, changes are analyzed intercalant. Spectroscopy studies reveal that insertion polyaniline optimizes V 2 O 5 , promoting transition electrons 3d xy state increasing occupation t 2g orbital, thereby enhancing electrical conductivity. Computational results confirm P‐VO lowers migration barrier, electron/NH transfer. As result, electrode demonstrates outstanding capacity unprecedented long‐term cycling stability. This study provides new insights into intercalant underscores advantages polymer‐intercalated VO high‐performance storage.

Language: Английский

MoS2@Polyaniline for Aqueous Ammonium‐Ion Supercapacitors DOI

Juguo Dai,

Chunying Yang,

Yiting Xu

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(39)

Published: June 26, 2023

Ammonium-ion aqueous supercapacitors are raising notable attention owing to their cost, safety, and environmental advantages, but the development of optimized electrode materials for ammonium-ion storage still lacks behind expectations. To overcome current challenges, here, a sulfide-based composite based on MoS2 polyaniline (MoS2 @PANI) is proposed as an host. The possesses specific capacitances above 450 F g-1 at 1 A , 86.3% capacitance retention after 5000 cycles in three-electrode configuration. PANI not only contributes electrochemical performance also plays key role defining final architecture. Symmetric assembled with such electrodes display energy densities 60 Wh kg-1 power density 725 W . Compared Li+ K+ ions, surface capacitive contribution NH4+ -based devices lower every scan rate, which points effective generation/breaking H-bonds mechanism controlling rate insertion/de-insertion. This result supported by functional theory calculations, show that sulfur vacancies effectively enhance adsorption improve electrical conductivity whole composite. Overall, this work demonstrates great potential engineering optimizing insertion electrodes.

Language: Английский

Citations

118
Co9S8/CNTs microspheres as superior-performance cathodes in aqueous ammonium-ion batteries DOI Open Access

Yu-zhu HUANG,

Lin Xing,

Shuang PEI

et al.

Transactions of Nonferrous Metals Society of China, Journal Year: 2023, Volume and Issue: 33(11), P. 3452 - 3464

Published: Nov. 1, 2023

Language: Английский

Citations

57
Modulating NH4+ in vanadium oxide framework for high-efficient aqueous NH4+ storage DOI

Xianfang Tan,

Fangfang Zhang, Dongzhi Chen

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151119 - 151119

Published: April 12, 2024

Language: Английский

Citations

52
Hydrogen-bond regulation in organic/aqueous hybrid electrolyte for safe and high-voltage K-ion batteries DOI

Maoting Xia,

Hongwei Fu,

Kairui Lin

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(3), P. 1255 - 1265

Published: Jan. 1, 2024

Hydrogen-bond regulating organic/aqueous hybrid electrolyte with immobilized H 2 O provides new insights into realizing high-voltage aqueous batteries without compromising safety.

Language: Английский

Citations

50
One-step hydrothermal synthesis of vanadium dioxide/carbon core–shell composite with improved ammonium ion storage for aqueous ammonium-ion battery DOI

Xianfang Tan,

Fangfang Zhang, Dongzhi Chen

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 669, P. 2 - 13

Published: May 1, 2024

Language: Английский

Citations

37
Lithium: A review of applications, occurrence, exploration, extraction, rercycling, analysis, and environmental impact DOI Creative Commons
V. Balaram, M. Santosh, M. Satyanarayanan

et al.

Geoscience Frontiers, Journal Year: 2024, Volume and Issue: 15(5), P. 101868 - 101868

Published: May 20, 2024

The energy transition challenges faced by modern civilization have significantly enhanced the demand for critical metals like lithium resulting in improved methods to explore, extract, and utilize these metals. In this comprehensive review, we discuss different types of resources, factors, mechanisms controlling enrichment various geological settings including terrestrial marine environments. Diverse exploration strategies geological, geophysical, mineralogical, geochemical, remote sensing techniques drone-based studies terranes are summarized. An overview mining techniques, beneficiation extraction, their principles, mechanisms, operations, comparison approaches compatibility with deposits obtaining maximum yield evaluated. Lithium isotopic useful understanding processes such as past weathering events riverine input into oceans, well source diverse deposits. We also highlight recent developments other areas recycling, environmental impact, state-of-the-art analytical determining ore materials. Our provides latest insights sectors related prompt further meet growing valuable metal world transforms clean energy.

Language: Английский

Citations

34
An acetate electrolyte for enhanced pseudocapacitve capacity in aqueous ammonium ion batteries DOI Creative Commons
Zhuoheng Bao, Chengjie Lu, Qiang Liu

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 2, 2024

Abstract Ammonium ion batteries are promising for energy storage with the merits of low cost, inherent security, environmental friendliness, and excellent electrochemical properties. Unfortunately, lack anode materials restricts their development. Herein, we utilized density functional theory calculations to explore V 2 CT x MXene as a working potential. demonstrates pseudocapacitive behavior ammonium storage, delivering high specific capacity 115.9 mAh g −1 at 1 A retention 100% after 5000 cycles 5 . In-situ quartz crystal microbalance measurement verifies two-step process this unique in acetate electrolyte. Theoretical simulation reveals reversible electron transfer reactions [NH 4 + (HAc) 3 ]···O coordination bonds, resulting superior capacity. The generality enhancement effect is also confirmed MoS -based ammonium-ion battery system. These findings open new door realizing on through enhancement, breaking limitations both Faradaic non-Faradaic storage.

Language: Английский

Citations

29
Non‐Metal Ion Storage in Zinc‐Organic Batteries DOI Creative Commons
Ziyang Song, Ling Miao, Yaokang Lv

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(19)

Published: March 13, 2024

Abstract Zinc‐organic batteries (ZOBs) are receiving widespread attention as up‐and‐coming energy‐storage systems due to their sustainability, operational safety and low cost. Charge carrier is one of the critical factors affecting redox kinetics electrochemical performances ZOBs. Compared with conventional large‐sized sluggish Zn 2+ storage, non‐metallic charge carriers small hydrated size light weight show accelerated interfacial dehydration fast reaction kinetics, enabling superior metrics for Thus, it valuable ongoing works build better ZOBs ion storage. In this review, versatile cationic (H + , NH 4 ) anionic (Cl − OH CF 3 SO 2− first categorized a brief comparison respective physicochemical properties chemical interactions redox‐active organic materials. Furthermore, work highlights implementation effectiveness ions in ZOBs, giving insights into impact types on (capacity, rate capability, operation voltage, cycle life) cathodes. Finally, challenges perspectives non‐metal‐ion‐based outlined guild future development next‐generation energy communities.

Language: Английский

Citations

28
Inert salt-assisted solvent-free synthesis of high-entropy oxide towards high-performance lithium-ion batteries DOI
Xiaolang Liu, Runming Tao, Cheng Li

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149791 - 149791

Published: Feb. 17, 2024

Language: Английский

Citations

17
Duodecuple H‐Bonded NH4+ Storage in Multi‐Redox‐Site N‐Heterocyclic Cathode for Six‐Electron Zinc–Organic Batteries DOI
Yehui Zhang, Ziyang Song, Ling Miao

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(45)

Published: May 28, 2024

Abstract Designing multiple redox sites in electroactive organic cathodes that allow more electron transfer is a permanent target for energy storage. Here, six‐electron zinc–organic batteries are reported accessed by duodecuple H‐bonded NH 4 + storage N‐heterocyclic dipyrazino[2,3‐f:2′,3′‐h]quinoxaline‐2,3,6,7,10,11‐hexacarbonitrile (DQH) cathode. DQH features an extended π‐conjugated aromatic planarity enriched with super delocalization routes and dodecahedral‐active imine/cyano motifs, achieving high capacity up to 385 mAh g −1 at 0.5 A . Besides, cathode redox‐exclusively couples small‐hydration‐size low‐desolvation‐energy‐barrier ions (0.33 nm 0.19 eV vs 0.86 0.36 of Zn 2+ ) via flexible H‐bonding interactions. topo‐coordination enables anti‐dissolution aqueous electrolytes avoid common decay small molecules, solves the instability low interfacial reaction kinetics issues caused rigidly sluggishly repeated insertion ions. This gives battery high‐rate ability (30 lifespan 000 cycles 10 ).

Language: Английский

Citations

17