Ether-based electrolytes for sodium ion batteries

Chemical Society Reviews, Год журнала: 2022, Номер 51(11), С. 4484 - 4536

Опубликована: Янв. 1, 2022

Sodium-ion batteries (SIBs) are considered to be strong candidates for large-scale energy storage with the benefits of cost-effectiveness and sodium abundance. Reliable electrolytes, as ionic conductors that regulate electrochemical reaction behavior nature interface electrode, indispensable in development advanced SIBs high Coulombic efficiency, stable cycling performance rate capability. Conventional carbonate-based electrolytes encounter numerous obstacles their wide application due formation a dissolvable, continuous-thickening solid electrolyte (SEI) layer inferior stability electrodes. Comparatively, ether-based (EBEs) emerging secondary battery field fascinating properties improve batteries, especially SIBs. Their solvation structure enables highly reversible solvent-co-intercalation reactions thin SEI. However, although EBEs can provide more rapid sodiation kinetics electrodes, benefitting from favorable electrolyte/electrode interactions such chemical compatibility good wettability, special chemistry is still being investigated puzzling. In this review, we thorough comprehensive overview on developmental history, fundamental characteristics, superiorities mechanisms EBEs, together advances other systems. Notably, relation among science, interfacial highlighted, which great significance in-depth understanding chemistry. Finally, future perspectives potential directions proposed navigate design optimization interfaces batteries.

Язык: Английский

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Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

Chemical Reviews, Год журнала: 2023, Номер 123(8), С. 4855 - 4933

Опубликована: Март 27, 2023

Heterogeneous bimetallic catalysts have broad applications in industrial processes, but achieving a fundamental understanding on the nature of active sites at atomic and molecular level is very challenging due to structural complexity catalysts. Comparing features catalytic performances different entities will favor formation unified structure-reactivity relationships heterogeneous thereby facilitate upgrading current In this review, we discuss geometric electronic structures three representative types (bimetallic binuclear sites, nanoclusters, nanoparticles) then summarize synthesis methodologies characterization techniques for entities, with emphasis recent progress made past decade. The supported nanoparticles series important reactions are discussed. Finally, future research directions catalysis based and, more generally, prospective developments both practical applications.

Язык: Английский

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A critical review on latest innovations and future challenges of electrochemical technology for the abatement of organics in water

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 328, С. 122430 - 122430

Опубликована: Фев. 4, 2023

Updated water directives and ambitious targets like the United Nations' Sustainable Development Goals (SDGs) have emerged in last decade to tackle scarcity contamination. Although numerous strategies been developed remove pollutants, it is still necessary enhance their effectiveness against toxic biorefractory organic molecules. Comprehensive reviews highlighted appealing features of electrochemical technologies, but much progress has made recent years. In this timely review, a critical discussion on latest innovations perspectives most promising tools for wastewater treatment presented. The work describes performance electrocatalytic anodes direct oxidation, oxidation mediated by electrogenerated active chlorine, reduction as well coupled approaches synchronous anodic cathodic processes combined with homogeneous heterogeneous catalysis. section devoted assessment scale-up issues increase technology readiness level.

Язык: Английский

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Understanding of Sodium Storage Mechanism in Hard Carbons: Ongoing Development under Debate

Advanced Energy Materials, Год журнала: 2022, Номер 12(27)

Опубликована: Июнь 7, 2022

Abstract Hard carbons are promising anode candidates for sodium‐ion batteries due to their excellent Na‐storage performance, abundant resources, and low cost. Despite the recent advances in hard carbons, interpretation of mechanism remains unclear, with discrepancies over a general model describing corresponding structure–property relationship. For rational structural design high‐performance carbon anodes, thorough understanding charge storage relationship between microstructure performance is critical. This review provides comprehensive overview known models describe discussion focused on active sites such as interlayer space, pores, heteroatoms, defects. The present models, including “insertion‐filling”, “adsorption‐filling”, “adsorption‐insertion”, “multistage mechanism” associated analytical characterization, elaborately discussed view challenges prospects unveiling carbons. serves clarify guidance toward anodes batteries.

Язык: Английский

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Defect engineering of two-dimensional materials for advanced energy conversion and storage

Chemical Society Reviews, Год журнала: 2023, Номер 52(5), С. 1723 - 1772

Опубликована: Янв. 1, 2023

Defective two-dimensional (2D) materials show huge potential for energy-related fields. This review overviews the formation/evolution mechanisms and engineering strategies of defects in 2D materials, which enable enhanced electrode reaction kinetics.

Язык: Английский

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Recent Advances in Carbon‐Based Electrodes for Energy Storage and Conversion

Advanced Science, Год журнала: 2023, Номер 10(18)

Опубликована: Апрель 25, 2023

Carbon-based nanomaterials, including graphene, fullerenes, and carbon nanotubes, are attracting significant attention as promising materials for next-generation energy storage conversion applications. They possess unique physicochemical properties, such structural stability flexibility, high porosity, tunable features, which render them well suited in these hot research fields. Technological advances at atomic electronic levels crucial developing more efficient durable devices. This comprehensive review provides a state-of-the-art overview of advanced carbon-based nanomaterials various applications, focusing on supercapacitors, lithium sodium-ion batteries, hydrogen evolution reactions. Particular emphasis is placed the strategies employed to enhance performance through nonmetallic elemental doping N, B, S, P either individual or codoping, modifications creation defect sites, edge functionalization, inter-layer distance manipulation, aiming provide general guidelines designing devices by above approaches achieve optimal performance. Furthermore, this delves into challenges future prospects advancement electrodes conversion.

Язык: Английский

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Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

ChemSusChem, Год журнала: 2021, Номер 15(1)

Опубликована: Ноя. 8, 2021

Electrochemical capacitors, also known as supercapacitors (SCs), have lately played an important role in energy storage and conversion systems due to their specific characteristics such high strength, durability, environmental friendliness. A wide range of materials is used electrodes for SC applications because the electrochemical efficiency primarily determined by electrode used. Carbonaceous with unique surface, chemical, electrochemical, electronic become attractive research, but they cannot meet rising need power. Besides, heteroatom-doped carbon shown pseudocapacitance improved energy, power, conductivity. This makes them more adaptable application. Among different heteroatom doping carbon, S-doped has gained considerable attention its unpaired electrons easily polarizable nature. materials-based SCs demonstrated enhanced surface wettability, conductivity, induced effect, thereby delivering Many reports on been published, there no Review preparation applications. focuses recent developments field made from materials. Herein, methods were summarized following a brief discussion characterization techniques SCs. Finally, challenges potential prospects discussed give crucial insights into favorable factors future innovations electrodes. aims provide insight further research

Язык: Английский

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Lignin-derived electrode materials for supercapacitor applications: progress and perspectives

Journal of Materials Chemistry A, Год журнала: 2022, Номер 11(3), С. 1061 - 1082

Опубликована: Дек. 7, 2022

Lignin is one of the most abundant natural polymers and affordable, has high carbon content active functional groups. It been utilized as electrode materials in electrical double-layer supercapacitors pseudo-supercapacitors.

Язык: Английский

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Recent Developments of Microenvironment Engineering of Single‐Atom Catalysts for Oxygen Reduction toward Desired Activity and Selectivity

Advanced Functional Materials, Год журнала: 2021, Номер 31(45)

Опубликована: Авг. 7, 2021

Abstract Oxygen reduction reaction (ORR) is an essential process for sustainable energy supply and sufficient chemical production in modern society. Single‐atom catalysts (SACs) exhibit great potential on maximum atomic efficiency, high ORR activity, stability, making them attractive candidates pursuing next‐generation catalysts. Despite substantial efforts being made building diversiform single‐atom active sites (SAASs), the performance of obtained still unsatisfactory. Fortunately, microenvironment regulation SACs provides opportunities to improve activity selectivity ORR. In this review, first, mechanism pathways N‐coordinated SAAS, electrochemical evaluation, characterization SAAS are displayed. addition, recent developments tuning systematically summarized, especially, strategies modulation introduced detail boosting intrinsic 4e − /2e selectivity. Theoretical calculations cutting‐edge techniques united discussed fundamental understanding synthesis–construction–performance correlations. Furthermore, their comprehensively overviewed acquire outstanding SACs. Lastly, by proposing perspectives remaining challenges infant engineering, future directions other analogous procedures pointed out.

Язык: Английский

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Catfish Effect Induced by Anion Sequential Doping for Microwave Absorption

Advanced Functional Materials, Год журнала: 2022, Номер 33(8)

Опубликована: Дек. 8, 2022

Abstract Heteroatom doping engineering is desirable in tuning crystal structures and electrical properties, which considered an opportunity to further develop microwave absorption materials. However, the competition mechanism priority among doped atoms have not been revealed, are insufficient guide most reasonable dielectric coupling model design high‐performance absorbers. In this work, based on situ N O, ex S introduced through external thermal driving, leading fierce anions. Specifically, replace pyrrole N, drive out lattice create O vacancies, bringing more extensive local charge redistribution stronger electron interaction, thus activating defect‐induced polarization (3–6 times higher than conduction loss) middle/high‐frequency region. Therefore, effective bandwidth (EAB) of 9.03 GHz minimum reflection loss ( RL min ) −64.05 dB at a filling rate 10 wt.% obtained, improves record carbon absorbers as reported. Through macro‐designs, i.e., multi‐layer gradient metamaterial, or utilizing other advantages, e.g., cost‐effective, stable chemical properties wide‐angle absorption, porous may possess great application prospect naval field.

Язык: Английский

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