<scp>d</scp>-Calcium pantothenate-derived porous carbon: carbonization mechanism and application in aqueous Zn-ion hybrid capacitors

Liu, Lantao; Lu, Yaping; Zhang, Jiapeng; Li, Yiming; Zhang, Gaixia; Chen, Xiaohong; Omanovic, Sasha; Sun, Shuhui; Song, Huaihe

doi:10.1039/d3ta02498a

Cited by 16 publications

(2 citation statements)

References 53 publications

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“…In addition, heteroatom doping, particularly with nitrogen (N) and oxygen (O), has been found to enhance the electrochemical performance of ZIHCs. [31,63] Building on our XPS results and previous reports, [31,74] we further constructed a high-defect graphene structure with N/O-doping (containing ether groups and graphitic N), which exhibits improved ∆E ad of −1.93 and −2.04 eV for for Zn 2+ / CF 3 SO 3 − (Figure S20, Supporting Information). This demonstrates that the combination of heteroatom doping and high-density structural defects enhances the adsorption of ions, thereby improving the energy storage capability of ZIHCs.…”

Section: Charge Storage Mechanism Investigationmentioning

confidence: 83%

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

et al. 2023

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Porous carbon is the most promising cathode material for Zn‐ion hybrid capacitors (ZIHCs), but is limited by insufficient active adsorption sites and slow ion diffusion kinetics during charge storage. Herein, a pore construction‐pore expansion strategy for synthesizing multi‐channel hollow carbon nanofibers (MCHCNF) is proposed, in which the sacrificial template‐induced multi‐channel structure eliminates the diffusion barrier for enhancing ion diffusion kinetics, and the generated ultrahigh surface area and high‐density defective structures effectively increase the quantity of active sites for charge storage. Additionally, a graphene‐like shell structure formed on the carbon nanofiber surface facilitates fast electron transport, and the highly matchable pore size of MCHCNF with electrolyte‐ions favors the accommodation of charge carriers. These advantages lead to the optimized ZIHCs exhibit high capacity (191.4 mAh g−1), high energy (133.1 Wh kg−1), along with outstanding cycling stability (93.0% capacity retention over 15000 cycles). Systematic ex situ characterizations reveal that the dual‐adsorption of anions and cations synergistically ensures the outstanding electrochemical performance, highlighting the importance of the highly‐developed porous structure of MCHCNF. This work not only provides a promising strategy for improving the capacitive capability of porous materials but also sheds light on charge storage mechanisms and rational design for advanced energy storage devices.

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Section: Charge Storage Mechanism Investigationmentioning

confidence: 83%

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

et al. 2023

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“…1–3 In recent years, zinc metal batteries have become one of the most promising aqueous energy storage devices because of their advantages of high mass specific capacity (820 mA h g −1 ), high volume specific capacity (5855 mA h cm −3 ), low zinc standard redox potential (−0.762 V vs. SHE), and abundant reserves. 4,5 However, the development of commercialized zinc anodes is limited by the low coulombic efficiency, short cycle life and poor reversibility of zinc deposition/dissolution, which is mainly due to the uncontrollable dendrite growth and side reactions during the charging and discharging process. 6–8…”

Section: Introductionmentioning

confidence: 99%

Controllable synthesis of an atomic Sn-anchoring carbon host for excellent long-cycle-life zinc metal batteries

Liu,

Li,

Zhang

et al. 2024

J. Mater. Chem. A

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Bi‐Functional Green Additive Anchoring Interface Enables Stable Zinc Metal Anodes for Aqueous Zinc‐Ions Batteries

Li,

Liu,

Zhang

et al. 2024

Adv Funct Materials

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As one of the most promising anodes for aqueous batteries, Zn metal faces uncontrollable side reactions and deleterious dendrite growth, which drastically compromise its cycle life and coulombic efficiency (CE). In this work, a bi‐functional and environmentally‐friendly high‐performance electrolyte is prepared by introducing maleic anhydride (MA) as an additive. In situ/ex situ experiments and simulation indicate that MA can enter the Zn2+ solvated sheath to replace the distribution of some water molecules and form a cross‐linked hydrogen bond network with H2O to inhibit the side reactions caused by the decomposition of active water molecules. In addition, MA can induce uniform deposition of Zn by adsorption on Zn (002) crystal surface and inhibit dendrite growth. The symmetric cells assembled with MA as the electrolyte additive have a long cycle life of 4000 h at 25 °C and can be stably cycled for >400 h at −8 °C (1 mA cm−2/1 mAh cm−2). In the presence of MA in the electrolyte, Zn//MnO2 full cell shows good cycle stability over 200 cycles (N/P = 4.1). This study reports a simple and effective strategy for promoting the commercial application of aqueous zinc‐ion batteries (AZIBs).

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d-Calcium pantothenate-derived porous carbon: carbonization mechanism and application in aqueous Zn-ion hybrid capacitors

Abstract: Due to the environmental friendliness and high safety of aqueous Zn-ion hybrid capacitors (ZIHCs), the exploration of high-performance porous carbon electrodes for ZIHCs has recently attracted significant attention. However, most...

Cited by 16 publications

References 53 publications

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

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

Controllable synthesis of an atomic Sn-anchoring carbon host for excellent long-cycle-life zinc metal batteries

Bi‐Functional Green Additive Anchoring Interface Enables Stable Zinc Metal Anodes for Aqueous Zinc‐Ions Batteries

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