Polyaniline-modified NiCo layered double hydroxide hollow nanocages for aqueous ammonium-ion supercapacitors

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 686, С. 691 - 700

Опубликована: Фев. 1, 2025

Язык: Английский

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Ammonium-ion energy storage devices for real-life deployment: storage mechanism, electrode design and system integration

Energy & Environmental Science, Год журнала: 2023, Номер 16(12), С. 5568 - 5604

Опубликована: Янв. 1, 2023

This review will pave the way to next-generation ammonium ion storage systems from fundamental science breakthroughs, practical prototypes and eventually real-life deployment commercialization.

Язык: Английский

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Quantitative Regulation of Interlayer Space of NH₄V₄O₁₀ for Fast and Durable Zn²⁺ and NH₄⁺ Storage

Advanced Science, Год журнала: 2023, Номер 10(9)

Опубликована: Янв. 25, 2023

Layered vanadium-based oxides are the promising cathode materials for aqueous zinc-ion batteries (AZIBs). Herein, an in situ electrochemical strategy that can effectively regulate interlayer distance of layered NH4 V4 O10 quantitatively is proposed and a close relationship between optimal performances with space revealed. Specifically, via increasing cutoff voltage from 1.4, 1.6 to 1.8 V, be well-controlled enlarged 10.21, 11.86, 12.08 Å, respectively, much larger than pristine one (9.5 Å). Among them, being charging V (NH4 -C1.6), demonstrates best Zn2+ storage including high capacity 223 mA h g-1 at 10 A long-term stability retention 97.5% over 1000 cycles. Such superior attributed good balance among active redox sites, charge transfer kinetics, crystal structure stability, enabled by careful control space. Moreover, -C1.6 delivers NH4+ whose reaches 296 0.1 lifespan lasts 3000 cycles 5 . This study provides new insights into understand limitation ion media guides exploration high-performance materials.

Язык: Английский

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Critical Advances of Aqueous Rechargeable Ammonium Ion Batteries

Small Structures, Год журнала: 2023, Номер 4(12)

Опубликована: Сен. 7, 2023

Aqueous rechargeable batteries have drawn wide attention owing to the advantages of low cost, high safety, and rapid kinetic process. In recent years, use NH 4 + ions other nonmetallic as carrier has come into researchers’ view. The storage shows fast diffusion kinetics ability achieve highly reversible redox processes by forming hydrogen bonds between electrode materials. Designing exploration advanced materials for are significance in building high‐performance aqueous battery systems. This review summarizes latest advances critical materials, including Prussian blue analogs, transition metal oxides, organic compounds batteries. Comparison properties among different is discussed detail. Different behaviors according several kinds demonstrated. Finally, challenges valuable perspectives further development also provided.

Язык: Английский

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Electrochemical Storage of Ammonium Versus Metal Ions in Bimetallic Hydroxide for Sustainable Aqueous Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 34(3)

Опубликована: Окт. 6, 2023

Abstract Aqueous batteries with high safety and cost efficiency usually employ metallic cations as charge carriers. Recently, ammonium (NH 4 + ) ion using the nonmetal NH a carrier exhibit distinct electrochemical features from conventional aqueous batteries. Herein, performances of bimetallic hydroxide material are systematically studied different carriers in electrolytes, including , well monovalent K Na respectively. Electrochemical results indicate that storage process working ions exhibits higher discharge plateau, smaller polarization, larger capacity than Experimental characterizations theoretical calculations suggest strong interaction between electrode material, low ‐ion diffusion barrier lead to these superior features. The assembled battery good energy density 123 Wh kg (cathode+anode) −1 at power 480 W . These fundamental findings important for developing safety, low‐cost, high‐energy sustainable

Язык: Английский

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Oxygen Vacancy-Enriched Bi₂SeO₅ Nanosheets with Dual Mechanism for Ammonium-Ion Batteries

ACS Nano, Год журнала: 2023, Номер 17(24), С. 25222 - 25233

Опубликована: Дек. 7, 2023

Ammonium ions feature a light molar mass and small hydrated radius, the interesting interaction between NH4+ host materials has attracted widespread attention in aqueous energy storage, while few studies focus on high-performance storage anodes. Herein, we present inset-type anode for ammonium-ion batteries (AIBs) based Bi2SeO5 nanosheets. A reversible NH4+/H+ co-intercalation/deintercalation accompanied by hydrogen bond formation/breaking conversion reaction mechanism layered is proposed according to ex situ characterizations. Accordingly, optimized high capacity of 341.03 mAh g-1 at 0.3 1 M NH4Cl electrolyte an impressive retention 86.7% after 7000 cycles 3 g-1, which related existence oxygen vacancies that enhance ion/electron transfer promote formation bonds material. When rocking-chair battery assembled using MnO2 cathode, device delivers ultrahigh 140.73 0.15 density 207.13 Wh kg-1 power 2985.07 W kg-1. This work provides promising strategy designing anodes next-generation AIBs.

Язык: Английский

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Controllable Metal–Organic Framework‐Derived NiCo‐Layered Double Hydroxide Nanosheets on Vertical Graphene as Mott–Schottky Heterostructure for High‐Performance Hybrid Supercapacitor

Small Structures, Год журнала: 2024, Номер 5(10)

Опубликована: Авг. 19, 2024

Layered double hydroxide (LDH) is considered a highly promising electrode material for supercapacitors (SCs) due to its high theoretical specific capacitance. However, LDH powders often suffer from poor electrical conductivity, structure pulverization, slow charge transport, and insufficient active sites. Herein, self‐supporting with Mott–Schottky heterostructure has been designed high‐performance SCs. The consists of low crystallinity NiCo‐LDH nanosheets vertical graphene (VG) directly grown on carbon cloth. was converted metal–organic framework (MOF) by the sol–gel method. This provides fast transfer, reducing pulverization effect energy barrier. LDH@VG regulates electron density enhances as confirmed functional theory calculation. optimized exhibits an excellent areal capacitance 5513.8 mF cm −2 rate capability 82.1%. Furthermore, fabricated hybrid SC demonstrates 404.8 μWh at 1.6 mW remarkable cycling life, 92.0% after 10 000 cycles. work not only simple dip‐coating MOF conversion method synthesize heterojunction‐based electrodes, but also broadens horizon designing advanced materials

Язык: Английский

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The Role of Hydrogen Bonding in Aqueous Batteries: Correlating Molecular-Scale Interactions with Battery Performance

ACS Energy Letters, Год журнала: 2024, Номер unknown, С. 5179 - 5205

Опубликована: Окт. 1, 2024

Язык: Английский

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Layered double hydroxide-based nanomaterials for supercapacitors and batteries: Strategies and mechanisms

Progress in Materials Science, Год журнала: 2024, Номер unknown, С. 101410 - 101410

Опубликована: Дек. 1, 2024

Язык: Английский

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Tailoring NH₄⁺/H⁺ Co-adsorption Chemistry into h-Ti₃C₂ MXene for High Load Aqueous Microsupercapacitors

ACS Energy Letters, Год журнала: 2024, Номер 9(5), С. 2000 - 2006

Опубликована: Апрель 5, 2024

Aqueous microsupercapacitors (AMSCs) with safe and low-cost are anticipated as a leading choice for micro energy storage devices. Nevertheless, the current issue AMSCs is their extremely low area density power density, which caused by strong interaction between metal ions well stacking properties of thick electrodes. Herein, we develop based on tailoring mechanism NH4+/H+ co-adsorption into hydroxylated Ti3C2 MXene (h-Ti3C2 MXene). This enhances adsorption kinetics electrode materials. The ultra-high-load h-Ti3C2 carpet shape more oxygen-containing functional groups further improves performance electrode. As result, reported exhibit impressive (16.50 mW cm–2 at 110.91 μWh cm–2), (394.59 0.825 cycle life (20 000 GCD cycles retain 92.45%). work provides an entirely new building advanced AMSCs.

Язык: Английский

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