Status and Opportunities of Zinc Ion Hybrid Capacitors: Focus on Carbon Materials, Current Collectors, and Separators

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 29, 2023

Abstract Zinc ion hybrid capacitors (ZIHCs), which integrate the features of high power supercapacitors and energy zinc batteries, are promising competitors in future electrochemical storage applications. Carbon-based materials deemed competitive candidates for cathodes ZIHC due to their cost-effectiveness, electronic conductivity, chemical inertness, controllable surface states, tunable pore architectures. In recent years, great research efforts have been devoted further improving density cycling stability ZIHCs. Reasonable modification optimization carbon-based offer a remedy these challenges. this review, structural design, properties cathode with different dimensions, as well selection compatible, robust current collectors separators ZIHCs discussed. The challenges prospects showcased guide innovative development novel

Language: Английский

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Defect Engineering of Disordered Carbon Anodes with Ultra-High Heteroatom Doping Through a Supermolecule-Mediated Strategy for Potassium-Ion Hybrid Capacitors

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: Jan. 27, 2023

Amorphous carbons are promising anodes for high-rate potassium-ion batteries. Most low-temperature annealed amorphous display unsatisfactory capacities. Heteroatom-induced defect engineering of could enhance their reversible Nevertheless, most lignocellulose biomasses lack heteroatoms, making it a challenge to design highly heteroatom-doped (> 10 at%). Herein, we report new preparation strategy carbon anodes. Nitrogen/sulfur co-doped lignin-derived porous (NSLPC) with ultra-high nitrogen doping levels (21.6 at% N and 0.8 S) from renewable lignin biomacromolecule precursors were prepared through supramolecule-mediated pyrolysis strategy. This supermolecule/lignin composite decomposes forming covalently bonded graphitic carbon/amorphous intermediate product, which induces the formation high heteroatom in obtained NSLPC. unique chemistry NSLPC enable abundant defective active sites adsorption K+ improved kinetics. The anode delivered capacity 419 mAh g‒1 superior cycling stability (capacity retention 96.6% at 1 A 1000 cycles). Potassium-ion hybrid capacitors assembled by exhibited excellent (91% 2000 cycles) energy density 71 Wh kg-1 power 92 W kg-1.

Language: Английский

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Recent progress on the heteroatom-doped carbon cathode for zinc ion hybrid capacitors

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 468, P. 143576 - 143576

Published: May 17, 2023

Language: Английский

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Coupling Uniform Pore Size And Multi‑Chemisorption Sites: Hierarchically Ordered Porous Carbon For Ultra‐Fast And Large Zinc Ion Storage

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(40)

Published: May 26, 2023

Abstract Constructing hierarchically ordered macro/meso−microporous structures of carbonaceous cathode with matchable pore size and adequate active sites is significant toward large Zn 2+ storage, but remains a formidable challenge. Herein, new perspective reported for synthesizing phosphorus nitrogen dual‐doped hierarchical porous carbon (PN‐HOPC) by eliminating the micropore confinement effect synchronously introducing multi‐chemisorption sites. The interconnected macropore can effectively facilitate long‐distance mass transfer, meso−microporous wall promote accessibility Density functional theory (DFT) calculations identify that P N co‐doping markedly contributes to reversible adsorption/desorption zinc ions protons. Consequently, optimized PN‐HOPC exhibits outstanding storage capabilities in terms high capacity (211.9 mAh g −1 ), superb energy density (169.5 Wh kg ultralong lifespan (99.3% retention after 60 000 cycles). Systematic ex situ measurements integrating Raman spectroscopy electrochemical quartz crystal microbalance (EQCM) techniques elucidate superior capability ascribed synergistic , H + SO 4 2− co‐adsorption mechanism, as well invertible chemical adsorption. This study not only provides insights design advanced materials practical applications also sheds lights on deeper understanding charge mechanism zinc‐ion capacitors (ZICs).

Language: Английский

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NH₄⁺ Charge Carrier Coordinated H‐Bonded Organic Small Molecule for Fast and Superstable Rechargeable Zinc Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(38)

Published: July 29, 2023

Organic small molecules as high-capacity cathodes for Zn-organic batteries have inspired numerous interests, but are trapped by their easy-dissolution in electrolytes. Here we knit ultrastable lock-and-key hydrogen-bonding networks between 2, 7-dinitropyrene-4, 5, 9, 10-tetraone (DNPT) and NH4+ charge carrier. DNPT with octuple-active carbonyl/nitro centers (H-bond acceptor) redox-exclusively accessible flexible tetrahedral ions donator) exclude larger rigid Zn2+ , due to a lower activation energy (0.14 vs. 0.31 eV). coordinated H-bonding chemistry conquers the stability barrier of electrolyte, gives fast diffusion kinetics non-metallic A stable two-step 4e- coordination cathode harvests high capacity (320 mAh g-1 ), high-rate capability (50 ) an ultralong life (60,000 cycles). This finding points new paradigm H-bond stabilized organic design advanced zinc batteries.

Language: Английский

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Multi‐Channel Hollow Carbon Nanofibers with Graphene‐Like Shell‐Structure and Ultrahigh Surface Area for High‐Performance Zn‐Ion Hybrid Capacitors

Small Methods, Journal Year: 2023, Volume and Issue: 7(11)

Published: Aug. 4, 2023

Porous carbon is the most promising cathode material for Zn-ion hybrid capacitors (ZIHCs), but limited by insufficient active adsorption sites and slow ion diffusion kinetics during charge storage. Herein, a pore construction-pore expansion strategy synthesizing multi-channel hollow nanofibers (MCHCNF) proposed, in which sacrificial template-induced structure eliminates barrier enhancing kinetics, generated ultrahigh surface area high-density defective structures effectively increase quantity of Additionally, graphene-like shell formed on nanofiber facilitates fast electron transport, highly matchable size MCHCNF with electrolyte-ions favors accommodation carriers. These advantages lead to optimized ZIHCs exhibit high capacity (191.4 mAh g

Language: Английский

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Silk-derived nitrogen-doped porous carbon electrodes with enhanced ionic conductivity for high-performance supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 645, P. 297 - 305

Published: April 28, 2023

Language: Английский

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All-Round Enhancement in Zn-Ion Storage Enabled by Solvent-Guided Lewis Acid–Base Self-Assembly of Heterodiatomic Carbon Nanotubes

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(29), P. 35380 - 35390

Published: July 13, 2023

Designing zincophilic and stable carbon nanostructures is critical for Zn-ion storage with superior capacitive activity durability. Here, we report solvent-guided Lewis acid-base self-assembly to customize heterodiatomic nanotubes, triggered by the reaction between iron chloride α,α'-dichloro-p-xylene. In this strategy, modulating solvent-precursor interaction through optimization of solvent formula stimulates differential thermodynamic solubilization, growth kinetics, behaviors polymeric chains, thereby accurately tailoring nanoarchitectures evoke storage. Featured open hollow interiors porous tubular topologies, solvent-optimized nanotubes allow low ion-migration barriers deeply access built-in sites high-kinetics physical Zn2+/CF3SO3- adsorption robust chemical Zn2+ redox pyridine/carbonyl motifs, which maximizes spatial charge density. Thus, as-designed nanotube cathodes provide all-round improvement in storage, including a high energy density (140 W h kg-1), large current (100 A g-1), an exceptional long-term cyclability (100,000 cycles at 50 g-1). This study provides appealing insights into solvent-mediated pair design nanostructured carbons toward advanced

Language: Английский

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Synergistic effect of nitrogen and oxygen dopants in 3D hierarchical porous carbon cathodes for ultra-fast zinc ion hybrid supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 640, P. 1029 - 1039

Published: March 8, 2023

Language: Английский

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Thiocyanogen-modulated N, S Co-doped lignin hierarchical porous carbons for high-performance aqueous supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 667, P. 147 - 156

Published: April 16, 2024

Language: Английский

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