π-Conjugated molecule mediated self-doped hierarchical porous carbons via self-stacking interaction for high-energy and ultra-stable zinc-ion hybrid capacitors

Hu, Chengmin; Qin, Yang; Song, Ziyang; Liu, Pingxuan; Miao, Ling; Duan, Hui; Lv, Yaokang; Xie, Li; Liu, Mingxian; Gan, Lihua

doi:10.1016/j.jcis.2023.12.144

Cited by 27 publications

(8 citation statements)

References 58 publications

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“…Moreover, the presence of the (111) characteristic peak of ND in NDs-rGO confirms the successful incorporation of ND, achieving a combination of sp 2 and sp 3 carbon. It is well known that the N 2 adsorption–desorption isotherms can provide accurate specific surface area and pore size distribution. − As shown in Figure S2a, NDs-rGO exhibits an IUPAC type IV pattern, indicative of the existence of mesopores, which can be further confirmed by the pore size distribution curve shown in Figure S2b. The specific surface area of NDs-rGO was calculated to be 125.6 m 2 g –1 .…”

Section: Resultsmentioning

confidence: 52%

Prompt Thermal Transfer Across the sp³–sp² Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Lu,

Xie,

Yang

et al. 2024

Ind. Eng. Chem. Res.

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The local thermal accumulation induced by the charging process of the aqueous supercapacitors will facilitate water splitting, which seriously decreases the energy density and safety of aqueous supercapacitors. Therefore, it is necessary to evacuate the heat from the active sites and identify the types of side reactions. In this study, we employ a self-assembly strategy to successfully synthesize a highly thermally conductive three-dimensional nanodiamond-reduced graphene oxide (NDs-rGO) aerogel. The NDs-rGO aerogel is used as the electrode material, which can expand the operating voltage of alkaline aqueous symmetric supercapacitors to 1.1 V, much higher than that of previously reported carbon-based symmetric supercapacitors (≤1.0 V). Moreover, we have, for the first time, utilized scanning electrochemical microscopy to confirm the beneficial role of materials with thermally conductive interfaces in dissipating heat during the charging process of supercapacitor electrodes. As a result, the aqueous NDs-rGO supercapacitor device exhibits excellent reversibility (100% capacitance retention after 10,000 cycles) and achieves an energy density of 12.2 W h kg −1 at a high working voltage of 1.1 V. The excellent electrochemical performance may be ascribed to the fact that the redox self-assembly process in NDs-rGO creates high thermal-conductivity heterogeneous interfaces between sp 2 −sp 3 structures, enabling rapid heat dissipation during the charging process, suppressing water splitting, and thus increasing the working voltage of the supercapacitors.

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Section: Resultsmentioning

confidence: 52%

Prompt Thermal Transfer Across the sp³–sp² Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Lu,

Xie,

Yang

et al. 2024

Ind. Eng. Chem. Res.

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“…S4 ESI†). 27–29 The pore size distribution plot further reveals the abundance of micropores in THC materials, primarily of around 0.6 nm, originating from intrinsic micropores formed by staggered AB-stacking (Fig. 2e).…”

Section: Resultsmentioning

confidence: 95%

Compact aqueous zinc–carbon capacitors with high capacity and ultra-long lifespan

Xu,

Li,

Zhang

et al. 2024

J. Mater. Chem. A

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“…2h), which are close to the ideal surface management process ( b = 1). 57–59 Further derivation shows that the capacity contribution of diffusion control gradually increases from 62% to 90.4% when the scan rate is increased from 1 to 20 mV s −1 (Fig. 2i).…”

Section: Resultsmentioning

confidence: 96%

Multi-electron bipolar-type organic molecules for high-capacity dual-ion zinc batteries

Hu,

Yang,

Liu

et al. 2024

J. Mater. Chem. A

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π-Conjugated molecule mediated self-doped hierarchical porous carbons via self-stacking interaction for high-energy and ultra-stable zinc-ion hybrid capacitors

Cited by 27 publications

References 58 publications

Prompt Thermal Transfer Across the sp³–sp² Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Prompt Thermal Transfer Across the sp³–sp² Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Compact aqueous zinc–carbon capacitors with high capacity and ultra-long lifespan

Multi-electron bipolar-type organic molecules for high-capacity dual-ion zinc batteries

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π-Conjugated molecule mediated self-doped hierarchical porous carbons via self-stacking interaction for high-energy and ultra-stable zinc-ion hybrid capacitors

Cited by 27 publications

References 58 publications

Prompt Thermal Transfer Across the sp3–sp2 Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Prompt Thermal Transfer Across the sp3–sp2 Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Compact aqueous zinc–carbon capacitors with high capacity and ultra-long lifespan

Multi-electron bipolar-type organic molecules for high-capacity dual-ion zinc batteries

Contact Info

Product

Resources

About

Prompt Thermal Transfer Across the sp³–sp² Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors

Prompt Thermal Transfer Across the sp³–sp² Interfaces for the Enhanced Electrochemical Performance of Aqueous Carbon-Based Supercapacitors