Phosphorus in honeycomb-like carbon as a cathode boosting pseudocapacitive properties for Zn-ion storage

Fan, Huailin; Zhou, Shuxin; Chen, Qifeng; Gao, Guoming; Ban, Qingfu; Xu, Zhixiang; He, Fei; Hu, Guangzhi; Hu, Xun

doi:10.1016/j.jpowsour.2021.229687

Cited by 53 publications

(24 citation statements)

References 30 publications

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“…When the b value is 0.5, it denotes the diffusioncontrolled electrochemical process, and when the b value is 1, it denotes the ideal capacitive behavior. 16,42 As shown in Fig. 4b, the b value of HPCS-900 is 0.912, indicating that the capacitive contribution dominated the reaction of the HPCS-900 electrode.…”

Section: Electrochemical Analysis For Zn-ion Hybrid Capacitorsmentioning

confidence: 82%

“…15 The pore size and shape can be well controlled by changing the template characteristics, and this method offers great advantages over other methods. Fan et al 16 synthesized a P-doped honeycomb porous carbon through an MgO template, which showed interconnected conductive networks and abundant electroactive sites. Zhang et al 17 designed a hollow carbon polyhedron using ZIF-8 as the template, and the as-prepared electrode exhibited good stability.…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al 17 designed a hollow carbon polyhedron using ZIF-8 as the template, and the as-prepared electrode exhibited good stability. In addition, carbon materials doped with heteroatoms, such as nitrogen (N), 18,19 sulfur (S), 20 phosphorus (P) 16,21,22 and boron (B), 23 have attracted increasing attention due to their excellent performance and potential applications in energy storage. The doping of heteroatoms into carbon materials is benecial to develop more defective sites, which increase active sites for ion de/adsorption and electronic conductivity of the carbon electrode; 24,25 it also improve the wettability of the electrolyte, which is conductive to the electrolyte permeation.…”

Section: Introductionmentioning

confidence: 99%

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N, P, and S co-doped 3D porous carbon-architectured cathode for high-performance Zn-ion hybrid capacitors

et al. 2022

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Section: Electrochemical Analysis For Zn-ion Hybrid Capacitorsmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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N, P, and S co-doped 3D porous carbon-architectured cathode for high-performance Zn-ion hybrid capacitors

et al. 2022

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“…Apart from the commercial AC, many PCs electrode materials can be fabricated through various methods, like template method [111][112][113] and pyrolysis method [108,[114][115][116]. As for the pyrolysis methods, the precursor is a significant part of synthesizing high-quality PC electrode materials.…”

Section: Hssa Carbon Electrodementioning

confidence: 99%

“…Apart from N atoms, P dopant has been reported in the carbon electrodes of ZHSCs as well, which possesses a lower electronegativity of 2.19 than N atoms [127]. Chen et al prepared P-doped honeycomb-like porous carbon (PHCA) electrodes by replacing the C atoms in carbon skeletons with P dopant [112]. Subsequently, the P dopants in carbon skeletons lead a chemical bonds transformation from C-OH (C-C-OH) to P-C-OH, which results in a stronger polarization of the hydroxyl group and lower energy barrier (from 0.13 to 0.04 eV).…”

Section: Heteroatom-doped Carbon Electrodementioning

confidence: 99%

A Better Zn-Ion Storage Device: Recent Progress for Zn-Ion Hybrid Supercapacitors

et al. 2022

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As a new generation of Zn-ion storage systems, Zn-ion hybrid supercapacitors (ZHSCs) garner tremendous interests recently from researchers due to the perfect integration of batteries and supercapacitors. ZHSCs have excellent integration of high energy density and power density, which seamlessly bridges the gap between batteries and supercapacitors, becoming one of the most viable future options for large-scale equipment and portable electronic devices. However, the currently reported two configurations of ZHSCs and corresponding energy storage mechanisms still lack systematic analyses. Herein, this review will be prudently organized from the perspectives of design strategies, electrode configurations, energy storage mechanisms, recent advances in electrode materials, electrolyte behaviors and further applications (micro or flexible devices) of ZHSCs. The synthesis processes and electrochemical properties of well-designed Zn anodes, capacitor-type electrodes and novel Zn-ion battery-type cathodes are comprehensively discussed. Finally, a brief summary and outlook for the further development of ZHSCs are presented as well. This review will provide timely access for researchers to the recent works regarding ZHSCs.

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Engineering Pore Nanostructure of Carbon Cathodes for Zinc Ion Hybrid Supercapacitors

Jian

Zhang

Wei

et al. 2022

Adv Funct Materials

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Zinc ion hybrid supercapacitors (ZIHCs) with both high power density and high energy density have tremendous potential for energy storage applications such as hybrid electric vehicles and renewable energy storage. However, the large radius of hydrated Zn2+ ions hampers their efficient storage in micropores with limited pore sizes, resulting in the limited gravimetric specific capacitance and inferior rate capability of ZIHCs. Therefore, it is critically important to understand to what extent pore size influences the storage of hydrated Zn2+ ions in the pores with limited sizes. Herein, porous carbon nanosheets with different pore architectures are prepared using an ammonium chloride molten salt carbonization strategy. The influence of pore size on hydrated Zn2+ ion storage in nanostructured carbon with divergent pore architectures is analyzed by electrochemical methods and molecular dynamic simulation. Micropores smaller than 6.0 Å obstruct the diffusion of hydrated Zn2+ ions, while micropores larger than 7.5 Å exhibit a low diffusion energy barrier for the hydrated Zn2+ ions. Mesopores improve capacitance and rate capability by exposing the electrochemically active sites and enhancing the diffusion of the hydrated Zn2+ ions.

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Phosphorus in honeycomb-like carbon as a cathode boosting pseudocapacitive properties for Zn-ion storage

Cited by 53 publications

References 30 publications

N, P, and S co-doped 3D porous carbon-architectured cathode for high-performance Zn-ion hybrid capacitors

N, P, and S co-doped 3D porous carbon-architectured cathode for high-performance Zn-ion hybrid capacitors

A Better Zn-Ion Storage Device: Recent Progress for Zn-Ion Hybrid Supercapacitors

Engineering Pore Nanostructure of Carbon Cathodes for Zinc Ion Hybrid Supercapacitors

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