Pressure difference-induced synthesis of P-doped carbon nanobowls for high-performance supercapacitors

Zhou, Yan; Jia, Zixin; Shi, Lingling; Wu, Zhen; Jie, Binyong; Zhao, Siyuan; Wei, Liyuan; Zhou, Aiguo; Zhu, Junwu; Wang, Xin; Fu, Yongsheng

doi:10.1016/j.cej.2019.123858

Cited by 66 publications

(16 citation statements)

References 60 publications

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“…The phosphoric acid treatment with a subsequent high‐temperature calcination process of the precursors is a common strategy for P‐doping 64‐66 . In addition, direct heat treatment of precursor (carbon source) and P 2 O 5 or NaH 2 PO 4 (dopant source) and solution plasma process could also induce P dopant 67‐69 …”

Section: Defective Carbon For Potassium‐ion Batteriesmentioning

confidence: 99%

Carbon‐based anode materials for potassium‐ion batteries: From material, mechanism to performance

Zhou

Guo

2021

SmartMat

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Potassium‐ion batteries (PIBs) show great potential in the application of large‐scale energy storage devices due to the comparable high operating voltage with lithium‐ion batteries and lower cost. Carbon‐based materials are promising candidates as anodes for PIBs, for their low cost, high abundance, nontoxicity, environmental benignity, and sustainability. In this review, we will first discuss the potassium storage mechanisms of graphitic and defective carbon materials and carbon‐based composites with various compositions and microstructures to comprehensively understand the potassium storage behavior. Then, several strategies based on heteroatoms doping, unique nanostructure design, and introduction of the conductive matrix to form composites are proposed to optimize the carbon‐based materials and achieve high performance for PIBs. Finally, we conclude the existing challenges and perspectives for further development of carbon‐based materials, which is believed to promote the practical application of PIBs in the future.

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Section: Defective Carbon For Potassium‐ion Batteriesmentioning

confidence: 99%

Carbon‐based anode materials for potassium‐ion batteries: From material, mechanism to performance

Zhou

Guo

2021

SmartMat

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“…XPS characterization was performed to further investigate the elemental and chemical composition of the samples, especially for the present heteroatoms in carbon structure. [25,[53][54][55][56] The entire XPS spectra of samples are shown in Figure 4a, the detailed data of elemental component is summarized in Table 2. Four kinds of heteroatoms including N, P, O, and Si are doped into the as-prepared carbons.…”

Section: Resultsmentioning

confidence: 99%

“…[47,64,65] The highresolution P 2p spectrum of CPC(SiO 2 )-600 (Figure 4c) displays two individual component peaks centered at 133.7 eV and 132.4 eV attributed to P=O and PÀ C bond, respectively. [56] The Si 2p spectrum is resolved into three peaks at 100.7, 101.6, and 102.9 eV (Figure 4d), corresponding to SiÀ C, SiÀ OÀ C, and Si-O x bonds. [62,66,67] During the carbonization process, a fraction of the functional groups on the silica surface reacts with the pyrolysis products containing oxygen functional groups, resulting in a small amount of Si incorporate into the carbon lattice.…”

Section: Resultsmentioning

confidence: 99%

Tetra‐Heteroatom‐Doped Ultra‐Mesoporous Carbon from Polyphosphazene for High‐Performance Supercapacitors

et al. 2021

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Applying multi-heteroatoms doping strategy to prepare porous carbon materials with high surface area has been demonstrated to be effective for enhancing electrochemical performance of supercapacitors. In this study, N, P, O, and Si tetra-atoms-doped hierarchically micro-/mesoporous carbon with ultrahigh surface area is fabricated from crosslinked-linear poly (diaryloxyphosphazene) precursor by using silica which serves as both template and dopant. The surface area and heteroatoms doping content of the synthesized carbons are tailored by tuning silica dosage and carbonization temperature. The tetra-atoms-doped mesoporous carbon exhibits an ultrahigh surface area of 3,132 m 2 /g with enriched heteroatoms content (22 at%), which contribute to the capacitive performance. The as-fabricated tetra-atoms-doped carbon symmetric cell displays outstanding specific capacitance of 288.8 F/g (0.5 A/g) (539.8 F/ g in three-electrode system) with high remaining capacitance of 226.1 F/g at 10 A/g and excellent cycling stability (97.7 % capacity retention after 5,000 cycles at 10 A/g). This study suggests an effective multi-heteroatoms-doping approach to synthesize mesoporous carbon materials for high performance electrochemical conversion and storage devices.

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“…In the case where the hydrophobic layer is facing upward, the water droplet exhibits a large contact angle. The highly curved air/water interface is associated with pressure, as is known from the Young-Laplace equation (Zhou et al 2020):…”

Section: Unidirectional Water-transport Behaviourmentioning

confidence: 99%

Cotton nonwovens with unidirectional water-transport properties produced by atmospheric plasma deposition

Yang

Russell

et al. 2021

Cellulose

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Pressure difference-induced synthesis of P-doped carbon nanobowls for high-performance supercapacitors

Cited by 66 publications

References 60 publications

Carbon‐based anode materials for potassium‐ion batteries: From material, mechanism to performance

Carbon‐based anode materials for potassium‐ion batteries: From material, mechanism to performance

Tetra‐Heteroatom‐Doped Ultra‐Mesoporous Carbon from Polyphosphazene for High‐Performance Supercapacitors

Cotton nonwovens with unidirectional water-transport properties produced by atmospheric plasma deposition

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