Engineering the microstructures of manganese dioxide coupled with oxygen vacancies for boosting aqueous ammonium-ion storage in hybrid capacitors DOI

Xinliang Han,

Jie Zhang,

Zuoshu Wang

et al.

Rare Metals, Journal Year: 2024, Volume and Issue: 43(11), P. 5734 - 5746

Published: July 2, 2024

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

121
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

53
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

38
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
Organic iodine electrolyte starting triple I+ storage in In-based metal-organic frameworks for high-capacity aqueous Zn-I2 batteries DOI

Wenyan Du,

Ling Miao,

Ziyang Song

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149535 - 149535

Published: Feb. 13, 2024

Language: Английский

Citations

26
Imine-based conjugated polymer enables efficient removal of ammonium ion via capacitive deionization DOI
Jing Jin, Renyuan Wang,

Ke Yu

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128290 - 128290

Published: June 14, 2024

Language: Английский

Citations

18
Encapsulation of Prussian Blue Analogues with Conductive Polymers for High‐Performance Ammonium‐Ion Storage DOI
Qiang Liu, Dongzhi Zhang,

Yunting Yang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 21, 2024

Abstract Multivalent manganese‐based Prussian blue analogues (Mn‐PBA) possess multi‐electron transfer characteristics and exhibit unique properties for achieving high energy density in ammonium ion batteries (AIBs). However, the irreversible structural collapse sluggish ionic diffusion kinetics result inferior rate capability undesirable lifespan. Herein, guided by theoretical calculations, a series of ultrafine Mn‐PBA@ conductive polymers core–shell composites through an situ polymerization encapsulation strategy are synthesized to solve above existing issues Mn‐PBA. Among various designed (including poly‐pyrrole (ppy), polyaniline, poly(3,4‐ethylenedioxythiophene)) coated on Mn‐PBA, Mn‐PBA@ppy shows strongest adsorption ions highest manganese atom removal barrier. Acting as cathode AIBs, exhibits remarkable capacity 72 mAh g −1 , super‐stable discharge platform 0.81 V, excellent cycling stability 94% retention over 300 cycles (0.1 A ) with ultrahigh NH 4 + coefficient ≈1.38 × 10 −8 cm −2 s . This work offers polymer approach simultaneously enhance stability. More importantly, this organic/inorganic interfacial design can promote development materials rapid cyclic

Language: Английский

Citations

18
P-n junction built-in electric field and electrochemical in-situ intercalation enabled ultra-stable and high-energy ammonium-ion storage DOI Creative Commons

Ji‐Chi Liu,

Kexin Wang, Ying Sun

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110764 - 110764

Published: Feb. 1, 2025

Language: Английский

Citations

4
Zn3V3O8 nanorods with outstanding electrochemical kinetics as novel anode for aqueous ammonium-ion batteries DOI
Xiaoyu Wen, Wei Li, Han Chen

et al.

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

Citations

4
2D Conjugated Metal–Organic Frameworks Embedded with Iodine for High‐Performance Ammonium‐Ion Hybrid Supercapacitors DOI Creative Commons
Mingming Gao, Zhiyong Wang, Zaichun Liu

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(41)

Published: Aug. 23, 2023

Ammonium ions (NH4+ ) are emerging non-metallic charge carriers for advanced electrochemical energy storage devices, due to their low cost, elemental abundance, and environmental benignity. However, finding suitable electrode materials achieve rapid diffusion kinetics NH4+ remains a great challenge. Herein, 2D conjugated metal-organic framework (2D c-MOF) immobilizing iodine, as high-performance cathode material hybrid supercapacitors, is reported. Cu-HHB (HHB = hexahydroxybenzene) MOF embedded with iodine (Cu-HHB/I2 features excellent electrical conductivity, highly porous structure, rich accessible active sites of copper-bis(dihydroxy) (Cu─O4 iodide species, resulting in remarkable areal capacitance 111.7 mF cm-2 at 0.4 mA . Experimental results theoretical calculations indicate that the Cu─O4 species play critical role binding polyiodide suppressing its dissolution, well contributing large pseudocapacitance adsorbed iodide. In combination MXene anode, full supercapacitors deliver an density 31.5 mWh long-term cycling stability 89.5% retention after 10 000 cycles, superior those state-of-the-art supercapacitors. This study sheds light on design storage, enabling development novel devices.

Language: Английский

Citations

43