In Situ Synthesis of MOF‐74 Family for High Areal Energy Density of Aqueous Nickel–Zinc Batteries

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(30)

Published: May 20, 2022

Limited by single metal active sites and low electrical conductivity, designing nickel-based metal-organic framework (MOF) materials with high capacity energy density remains a challenge. Herein, series of bi/multimetallic MOF-74 family in situ grown on carbon cloth (CC) doping Mx+ ions Ni-MOF-74 is fabricated: NiM-MOF@CC (M = Mn2+ , Co2+ Cu2+ Zn2+ Al3+ Fe3+ ), NiCoM-MOF@CC ). The type ratio can be adjusted while the original topology preserved. Different are confirmed X-ray absorption fine structure (XAFS). Furthermore, these Ni-based MOF electrodes directly utilized as cathodes for aqueous nickel-zinc batteries (NZBs). Among all as-prepared electrodes, NiCo-MOF@CC-3 (NCM@CC-3), an optimized Co/Ni 1:1, exhibits best which according to functional theory (DFT) theoretical calculations. NCM@CC-3//Zn@CC battery achieves specific 1.77 mAh cm-2 areal 2.97 mWh cycling stability 83% retention rate after 6000 cycles. synthetic strategy based coordination effect concept binder-free provide new direction synthesis high-performance energy-storage field.

Language: Английский

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A Review on Autonomous Vehicles: Progress, Methods and Challenges

Electronics, Journal Year: 2022, Volume and Issue: 11(14), P. 2162 - 2162

Published: July 11, 2022

Vehicular technology has recently gained increasing popularity, and autonomous driving is a hot topic. To achieve safe reliable intelligent transportation systems, accurate positioning technologies need to be built factor in the different types of uncertainties such as pedestrian behavior, random objects, roads their settings. In this work, we look into other domains required build an vehicle conduct relevant literature analysis. current state research development environment detection, path planning, motion control, cybersecurity for vehicles. We aim study proposed compare approaches. For car become fully autonomous, these enough gain public trust show immense accuracy approach solving problems. Public perception auto vehicles are also explored paper. By discussing opportunities well obstacles technology, shed light on future possibilities.

Language: Английский

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High‐Entropy Prussian Blue Analogues and Their Oxide Family as Sulfur Hosts for Lithium‐Sulfur Batteries

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(41)

Published: Aug. 25, 2022

The introduction of high-entropy into Prussian blue analogues (PBAs) has yet to attract attention in the field lithium-sulfur battery materials. Herein, we systematically synthesize a library PBAs from binary by facile coprecipitation method. coordination environment is explored X-ray absorption fine structure spectroscopy, which together with elemental mapping confirm successful all metals. Importantly, electrochemical tests demonstrate that PBA can serve as polysulfide immobilizer inhibit shuttle effect and catalyst promote polysulfides conversion, thereby boosting its outstanding performance. Additionally, variety nanocubic metal oxides senary are fabricated using sacrificial precursors. We believe wide range new materials obtained our pyrolysis methodology further developments research on systems sulfur hosts.

Language: Английский

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Freestanding Metal–Organic Frameworks and Their Derivatives: An Emerging Platform for Electrochemical Energy Storage and Conversion

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(11), P. 10087 - 10125

Published: April 21, 2022

Metal–organic frameworks (MOFs) have recently emerged as ideal electrode materials and precursors for electrochemical energy storage conversion (EESC) owing to their large specific surface areas, highly tunable porosities, abundant active sites, diversified choices of metal nodes organic linkers. Both MOF-based MOF-derived in powder form been widely investigated relation synthesis methods, structure morphology controls, performance advantages targeted applications. However, engage them applications, both binders additives would be required postprocessed electrodes, fundamentally eliminating some the sites thus degrading superior effects MOF-based/derived materials. The advancement freestanding electrodes provides a new promising platform EESC thanks apparent merits, including fast electron/charge transmission seamless contact between current collectors. Benefiting from synergistic effect structures materials, outstanding can achieved, stimulating increasing enthusiasm recent years. This review timely comprehensive overview on structural features fabrication techniques electrodes. Then, latest advances are summarized devices electrocatalysis. Finally, insights into currently faced challenges further perspectives these feasible solutions discussed, aiming at providing set guidance promote development scale-up production commercial

Language: Английский

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Tackling orientation of metal-organic frameworks (MOFs): The quest to enhance MOF performance

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 481, P. 215043 - 215043

Published: Feb. 13, 2023

As the structure and properties of anisotropic metal–organic frameworks (MOFs) vary with certain directions in space, controlling orientation these MOFs allows full advantage to be taken their properties. Not surprisingly, preparation oriented MOFs, has drawn great attention past decade. In this review, we systematically summarized strategies utilized for growth highlighting possibilities each synthetic approach as well challenges they have overcome. Herein, also explored MOF-on-MOF hybrids. Finally, presented advantages MOF crystals over randomly counterparts different applications, including adsorptions, separations, catalysis, sensing, energy storage, etc. We hope review shows tremendous helps reader better comprehend synthesis, properties, applications.

Language: Английский

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MOF based electrochemical sensors for the detection of physiologically relevant biomolecules: An overview

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 468, P. 214627 - 214627

Published: June 1, 2022

Language: Английский

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Challenges, interface engineering, and processing strategies toward practical sulfide‐based all‐solid‐state lithium batteries

InfoMat, Journal Year: 2022, Volume and Issue: 4(5)

Published: Feb. 12, 2022

Abstract All‐solid‐state lithium batteries have emerged as a priority candidate for the next generation of safe and energy‐dense energy storage devices surpassing state‐of‐art lithium‐ion batteries. Among multitudinous solid‐state based on solid electrolytes (SEs), sulfide SEs attracted burgeoning scrutiny due to their superior ionic conductivity outstanding formability. However, from perspective practical applications concerning cell integration production, it is still extremely challenging constructing compatible electrolyte/electrode interfaces developing available scale processing technologies. This review presents critical overview current underlying understanding interfacial issues analyzes main challenges faced by sulfide‐based all‐solid‐state aspects cost‐effective design. Besides, corresponding approaches involving interface engineering protocols addressing these are summarized. Fundamental perspectives future development avenues toward application high energy, safety, long‐life ultimately provided. image

Language: Английский

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Micro/nano metal–organic frameworks meet energy chemistry: A review of materials synthesis and applications

eScience, Journal Year: 2023, Volume and Issue: 3(2), P. 100092 - 100092

Published: Jan. 10, 2023

Micro/nano metal–organic frameworks (MOFs) have attracted significant attention in recent years due to their numerous unique properties, with many synthetic methods and strategies being reported for constructing MOFs specific micro/nano structures. In addition, the design of energy storage conversion applications study structure–activity relationship also become research hotspots. Herein, a comprehensive overview progress on is presented. We begin brief introduction various synthesis controlling morphology MOFs. Subsequently, structure-dependent properties as electrode materials or catalysts terms batteries, supercapacitors, catalysis are discussed. Finally, remaining challenges future perspectives this field Overall, review expected inspire advanced efficient technologies.

Language: Английский

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Copper-based metal–organic frameworks for biomedical applications

Advances in Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 305, P. 102686 - 102686

Published: April 29, 2022

Language: Английский

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Regulating the Inner Helmholtz Plane with a High Donor Additive for Efficient Anode Reversibility in Aqueous Zn‐Ion Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(21)

Published: March 24, 2023

The performance of aqueous Zn ion batteries (AZIBs) is highly dependent on inner Helmholtz plane (IHP) chemistry. Notorious parasitic reactions containing hydrogen evolution (HER) and dendrites both originate from abundant free H2 O random deposition inside active IHP. Here, we report a universal high donor number (DN) additive pyridine (Py) with only 1 vol. % addition (Py-to-H2 volume ratio), for regulating molecule distribution Density functional theory (DFT) calculations molecular dynamics (MD) simulation verify that incorporated Py could tailor Zn2+ solvation sheath exclude molecules IHP effectively, which in favor preventing decomposition. Consequently, even at extreme conditions such as depth discharge (DOD) 80 %, the symmetric cell based can sustain approximately 500 h long-term stability. This efficient strategy DN additives furnishes promising direction designing novel electrolytes promoting practical application AZIBs, despite inevitably introducing trace organic additives.

Language: Английский

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