Versatile carbon superstructures for energy storage

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(24), P. 12434 - 12455

Published: Jan. 1, 2023

The design strategies and underlying mechanisms of versatile carbon superstructures for energy storage are reviewed. Current challenges development roadmaps proposed to spur the further exploration superstructures.

Language: Английский

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Superfast Mass Transport of Na/K Via Mesochannels for Dendrite‐Free Metal Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: unknown, P. 2210447 - 2210447

Published: Jan. 19, 2023

Fast ion diffusion in anode hosts enabling uniform distribution of Li/Na/K is essential for achieving dendrite-free alkali-metal batteries. Common strategies, e.g. expanding the interlayer spacing materials, can enhance bulk Li but are less efficient Na and K due to their larger ionic radius. Herein, a universal strategy drastically improve mass-transport efficiency Na/K by introducing open mesochannels carbon proposed. Such pore engineering increase accessible surface area one order magnitude, thus remarkably accelerating diffusion, as visualized situ transmission electron microscopy. In particular, once filled metals, they become superfast channels mass transport via mechanism interfacial diffusion. Thus-modified enable filling inner cavities deposition across whole electrodes with fast kinetics. The resulting Na-metal anodes exhibit stable cycling outstanding rate performance at high current density up 30 mA cm-2 . This work presents an inspiring attempt address sluggish issue Na/K, well valuable insights into porous high-performance storage.

Language: Английский

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Establishing Transition Metal Phosphides as Effective Sulfur Hosts in Lithium–Sulfur Batteries through the Triple Effect of “Confinement–Adsorption–Catalysis”

Small, Journal Year: 2023, Volume and Issue: 19(42)

Published: June 17, 2023

Structurally optimized transition metal phosphides are identified as a promising avenue for the commercialization of lithium-sulfur (Li-S) batteries. In this study, CoP nanoparticle-doped hollow ordered mesoporous carbon sphere (CoP-OMCS) is developed S host with "Confinement-Adsorption-Catalysis" triple effect Li-S The batteries CoP-OMCS/S cathode demonstrate excellent performance, delivering discharge capacity 1148 mAh g-1 at 0.5 C and good cycling stability low long-cycle decay rate 0.059% per cycle. Even high current density 2 after 200 cycles, specific 524 maintained. Moreover, reversible areal 6.56 cm-2 achieved 100 cycles 0.2 C, despite loading 6.8 mg . Density functional theory (DFT) calculations show that exhibits enhanced adsorption sulfur-containing substances. Additionally, electronic structure significantly reduces energy barrier during conversion Li2 S4 (L) to S2 (S). summary, work provides approach optimize phosphide materials structurally design cathodes

Language: Английский

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Atomic Fe/Zn anchored N, S co-doped nano-porous carbon for boosting oxygen reduction reaction

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 635, P. 578 - 587

Published: Jan. 2, 2023

Language: Английский

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Synthetic porous carbons for clean energy storage and conversion

EnergyChem, Journal Year: 2023, Volume and Issue: 5(4), P. 100099 - 100099

Published: Jan. 13, 2023

Language: Английский

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Versatile Synthesis of Hollow‐Structured Mesoporous Carbons by Enhanced Surface Interaction for High‐Performance Lithium‐Ion Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: unknown

Published: July 7, 2023

Nanoporous carbons are very attractive for various applications including energy storage. Templating methods with assembled amphiphilic molecules or porous inorganic templates typically used the synthesis. Amongst different members of this family, CMK-5-like structures that constructed to consist sub-10 nm amorphous carbon nanotubes and ultrahigh specific surface area due their thin pore walls, have best properties in respects. However, fabrication such hollow-structured mesoporous entails elaborately tailoring template walls selecting precursors. Thus, limited cases successful. Herein, a versatile general silanol-assisted surface-casting method create heteroatom-doped derivatives numerous organic (e.g., furfuryl alcohol, resol, 2-thiophene methanol, dopamine, tyrosine) structural is reported. These materials exhibit (2400 m2 g-1 ), large volume (4.0 cm3 as well satisfactory lithium-storage capacity (1460 mAh at 0.1 A excellent rate capability (320 5 outstanding cycling performance (2000 cycles ).

Language: Английский

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Microstructure and bionic engineering of triphase reaction interface for zinc-air batteries

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 147, P. 101356 - 101356

Published: Aug. 27, 2024

Language: Английский

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Facile Fabrication of Hollow Nanoporous Carbon Architectures by Controlling MOF Crystalline Inhomogeneity for Ultra‐Stable Na‐Ion Storage

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(15)

Published: Feb. 10, 2024

Abstract Hollow nanoporous carbon architectures (HNCs) present significant utilitarian value for a wide variety of applications. Facile and efficient preparation HNCs has long been pursued but still remains challenging. Herein, we the first time demonstrate that single‐component metal–organic frameworks (MOFs) crystals, rather than widely reported hybrid ones which necessitate tedious operations preparation, could enable facile versatile syntheses functional HNCs. By controlling growth kinetics, MOFs crystals (STU‐1) are readily engineered into different shapes with designated styles crystalline inhomogeneity. A subsequent one‐step pyrolysis these intraparticle difference can induce simultaneous self‐hollowing carbonization process, thereby producing various including yolk‐shell polyhedrons, hollow microspheres, mesoporous architectures, superstructures. Superior to existing methods, this synthetic strategy relies only on complex nature without involving like coating, etching, or ligand exchange, making it convenient, efficient, easy scale up. An ultra‐stable Na‐ion battery anode is demonstrated by extraordinary cyclability (93 % capacity retention over 8000 cycles), highlighting high level functionality

Language: Английский

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Electrocatalytic upcycling of plastic waste: Progress, challenges, and future

Electron, Journal Year: 2024, Volume and Issue: 2(3)

Published: Aug. 1, 2024

Abstract The escalating accumulation of plastic waste has been developed into a formidable global environmental challenge. Traditional disposal methods such as landfilling and incineration not only exacerbate degradation by releasing harmful chemicals greenhouse gases, but also squander finite resources that could otherwise be recycled or repurposed. Upcycling is kind recycling technology converts high‐value helps to avoid resource pollution. Electrocatalytic upcycling emerges novel distinguished its mild operational conditions, high transformation efficiency product selectivity. This review commences with an overview the employed in management respective advantages inherent limitations are delineated. different types upcycled electrocatalytic strategy then discussed process examined together mechanisms underlying upcycling. Furthermore, structure‐activity relationships between electrocatalysts performance elucidated. aims furnish readers comprehensive understanding techniques for provide guidance design towards efficient transformation.

Language: Английский

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Covalent organic framework‐derived Fe, Co‐nitrogen codoped carbon as a bifunctional electrocatalyst for rechargeable efficient Zn–air batteries

Carbon Neutralization, Journal Year: 2024, Volume and Issue: 3(4), P. 689 - 699

Published: May 27, 2024

Abstract The development of cathode materials with controllable physicochemical structures and explicit catalytic sites is important in rechargeable Zn–air batteries (ZABs). Covalent organic frameworks (COFs) have garnered increasing attention owing to their facile synthesis methods, ordered pore structure, selectivity functional groups. However, the sluggish kinetics oxygen evolution reaction (OER) or reduction (ORR) inhibit practical applications ZABs. Herein, nucleophilic substitution adopted synthesize pyridine bi‐triazine covalent framework (denoted as O‐COF), meanwhile, ionothermal conversion employed load MO x (M=Fe, Co) onto carbon nanosheet (named FeCo@NC) modulate electronic structure. Fe, Co‐N codoped material possesses a large portion pyridinic N M‐N, high graphitization, larger BET surface area. An outstanding bifunctional activity has been exhibited FeCo@NC, which provides small voltage at 10 mA cm −2 for OER (E = 1.67 V) remarkable half‐wave ORR 1/2 0.86 V). More impressively, when assembling ZABs, it displays notable rate performance, significant specific capacity (783.9 mAh g Zn −1 ), satisfactory long‐term endurance. This method regulating can be extended design diverse catalysts.

Language: Английский

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