Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(25), P. 13190 - 13240

Published: Jan. 1, 2022

Systematic survey on the fabrication and electrochemical performance of most promising classes pseudocapacitive/battery-type electrode materials for supercapacitors.

Language: Английский

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Conductive Metal–Organic Frameworks for Supercapacitors

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(52)

Published: March 31, 2022

Abstract As a class of porous materials with crystal lattices, metal–organic frameworks (MOFs), featuring outstanding specific surface area, tunable functionality, and versatile structures, have attracted huge attention in the past two decades. Since first conductive MOF is successfully synthesized 2009, considerable progress has been achieved for development MOFs, allowing their use diverse applications electrochemical energy storage. Among those applications, supercapacitors received great interest because high power density, fast charging ability, excellent cycling stability. Here, efforts hitherto devoted to synthesis design MOFs auspicious capacitive performance are summarized. Using as unique platform medium, electronic molecular aspects storage mechanism electrodes discussed, highlighting advantages limitations inspire new ideas supercapacitors.

Language: Английский

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Current Progress in 2D Metal–Organic Frameworks for Electrocatalysis

Small Structures, Journal Year: 2022, Volume and Issue: 4(6)

Published: Sept. 16, 2022

The 2D nanosheets of metal–organic frameworks (MOFs) have recently emerged as a promising material that makes them valuable in widespread electrocatalytic fields due to their atomic‐level thickness, abundant active sites, and large surface area. Efficient electrocatalysts for hydrogen evolution reaction (HER), oxygen (OER), overall water splitting are highly desired with low overpotentials promote the industrial applications energy conversion devices. MOF nanostructures provide long‐term stability high electrical conductivity enhance catalyst activity durability. This review briefly summarizes synthesis HER/OER/water splitting. More attention is focused on synthetic strategies derivatives. catalytic performance superior properties these materials highlighted. outperformance originates from rational design, myriad thickness. current future challenges this field scientific perspectives overcome It suggested construction can develop state‐of‐the‐art electrocatalyst environmental division.

Language: Английский

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Recent progress on porous carbon derived from Zn and Al based metal-organic frameworks as advanced materials for supercapacitor applications

Journal of Energy Storage, Journal Year: 2021, Volume and Issue: 44, P. 103263 - 103263

Published: Oct. 4, 2021

Language: Английский

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Metal–Organic Frameworks Constructed from Iron‐Series Elements for Supercapacitors

Small Structures, Journal Year: 2021, Volume and Issue: 3(5)

Published: Oct. 9, 2021

Iron‐series (Fe, Co, and Ni) containing metal–organic frameworks (MOFs) have gained great concern in supercapacitors (SCs) because of their tailorable architectures, multiple redox‐active sites, intriguing properties. Given the importance porosities MOFs for charge transmission, an essential assessment designs, preparation methods, engineering technologies is strongly required to further explore optimize SCs. Through empowering conductive backbones centers, iron‐series MOF‐based electrodes made outstanding achievements recently. This review aims summarize these core reports on MOFs. Correspondingly, design strategy, reason compositing, strategy introducing heteroatoms, current divergences structural alteration mechanisms are discussed. Potential bottleneck issues coping strategies also perspectively discussed guide future optimization.

Language: Английский

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Process of metal–organic framework (MOF)/covalent–organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage

Nanoscale, Journal Year: 2022, Volume and Issue: 14(5), P. 1679 - 1699

Published: Jan. 1, 2022

The fossil-fuel shortage and severe environmental issues have posed ever-increasing demands on clean renewable energy sources, for which the exploration of electrocatalysts has been a big challenge toward transfer storage.

Language: Английский

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Recent progress in host–guest metal–organic frameworks: Construction and emergent properties

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 476, P. 214921 - 214921

Published: Nov. 16, 2022

Language: Английский

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Insight into Electrochemical Performance of Nitrogen‐Doped Carbon/NiCo‐Alloy Active Nanocomposites

Small, Journal Year: 2023, Volume and Issue: 19(23)

Published: March 6, 2023

Nanocomposites containing Ni or Co NiCo alloy and nitrogen-doped carbon with diverse ratios have been prepared utilized as active elements in supercapacitors. The atomic contents of nitrogen, nickel, cobalt adjusted by the supplement amount salts. In virtue excellent surface groups rich redox sites, NC/NiCo materials exhibit superior electrochemical charge-storage performances. Among these as-prepared electrode materials, NC/NiCo1/1 performs better than other bimetallic/carbon electrodes pristine metal/carbon electrodes. Several characterization methods, kinetic analyses, nitrogen-supplement strategies determine specific reason for this phenomenon. As a result, performance can be ascribed to combination factors including high area nitrogen content, proper Co/Ni ratio, relatively low average pore size. delivers maximum capacity 300.5 C g-1 retention 92.30% after 3000 unceasing charge-discharge cycles. After assembling it into battery-supercapacitor hybrid device, energy density 26.6 Wh kg-1 (at 412 W ) is achieved, comparable recent reports. Furthermore, device also power four light-emitting-diode (LED) demos, suggesting potential practicability N-doped compositing bimetallic materials.

Language: Английский

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A heterostructure of a 2D bimetallic metal–organic framework assembled on an MXene for high-performance supercapacitors

Dalton Transactions, Journal Year: 2023, Volume and Issue: 52(8), P. 2455 - 2462

Published: Jan. 1, 2023

Two-dimensional (2D) MXenes (transition metal carbide or carbonitride) and metal-organic frameworks (MOFs) have emerged as appealing electrode materials for supercapacitors due to the advantages of each material a 2D structure. However, solitary MXene MOF suffers from either inadequate redox reactive sites low electronic conductivity instability. Here, NiCo-MOF/MXene heterostructures are fabricated by assembling ultrathin bimetallic NiCo-MOF nanosheets on exfoliated simple room-temperature ultrasonic method. The 2D/2D combine MOF, hierarchical structure, i.e. large surface area, highly electrically conductive network, rapid ion diffusion structural stability. As result, optimal NiCo-MOF/M10 exhibits improved capacitance (1176.8 F g-1vs. 653.4 g-1) cycle life (72.5% vs. 50.5%), compared with pristine NiCo-MOF. Moreover, two-electrode cell using cathode shows outstanding energy storage capability. This study provides an opportunity enhance designing heterostructures.

Language: Английский

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Recent advances in two-dimensional metal-organic frameworks as an exotic candidate for the evaluation of redox-active sites in energy storage devices

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 64, P. 107142 - 107142

Published: March 22, 2023

Language: Английский

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