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Chenyang Zhao

Bio: Chenyang Zhao is an academic researcher from Tianjin University. The author has contributed to research in topics: Supercapacitor. The author has an hindex of 1, co-authored 2 publications receiving 2 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors developed carbon/carbon gradient-structured microspheres (CCGMs) by the strategy of third-order graduation polymerization and dynamic radical oxidation, and the CCGMs exhibited three-ultrahigh performance with gravimetric, volumetric, and areal capacitances of 408.23, 741.11, and 4390, respectively.

8 citations

Journal ArticleDOI
TL;DR: In this article, ultrasmall polyacrylonitrile particles with controllable sizes are supported on poly(ionic liquid)s microspheres (PILMs/PAN) by epitaxial polymerization growth strategy.
Abstract: A small size effect could be conducive to enhancing the electrochemical performance, while the mechanism by which they also increase the capacitance for carbon electrode materials has not been established. Here, ultrasmall polyacrylonitrile particles with controllable sizes are supported on poly(ionic liquid)s microspheres (PILMs/PAN) by epitaxial polymerization growth strategy. Unlike traditional subtraction formulas in developing a porous architecture, we report on the synthesis of creating numerous micro/mesopores in carbon materials by addition theorem, and thus making for the perfection of packing density, which has not been reported yet. As an example, PILMC/PAN-L with a well-balanced specific surface area of 875.38 m2 g−1 and packing density of 1.05 g cm−3 demonstrated gravimetric and volumetric capacitances of 309 F g−1 and 324.45 F cm−3 at 0.5 A g−1, showing good rate performance and stable cyclability. Moreover, the underlying mechanism is thoroughly developed using multiple electrochemical methods. On this basis, this work would afford avenues to further enhancing the electrochemical performance, especially in exploring advanced carbon materials.

6 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper , ternary nanocomposite films have been fabricated by incorporating sustainably renewable chitin nanofibers (ChNF) and biomass-based lignin nanoparticles (LNPs) into the biodegradable polyvinyl alcohol (PVA)-based films.

10 citations

Journal ArticleDOI
01 Feb 2022-Fuel
TL;DR: In this paper , the core-shell P[xSPA-yDABCO]@SiO2@Fe3O4 composite materials with a shell of photo-responsive and base catalytic sites were manufactured by means of layer-by-layer fabrication method.

6 citations

Journal ArticleDOI
15 Feb 2022-Fuel
TL;DR: In this article, the core-shell P[xSPA-yDABCO]@SiO2@Fe3O4 composite materials with a shell of photo-responsive and base catalytic sites were manufactured by means of layer-by-layer fabrication method.

6 citations

Journal ArticleDOI
TL;DR: In this article , the KC-pre-intercalated carbon nanosheets (PCNs) with abundant conjugated carbonyl groups were designed via a one-step smelting method as a novel intercalation electrode in the symmetric capacitive deionization.

5 citations

Journal ArticleDOI
TL;DR: In this article, a review of different types of supercapacitors, according to their charge storage mechanisms, have been discussed in detail, and synthesis parameters, such as carbonisation, activation, and functionalisation, which can impact a material's physiochemical characteristics, ultimately affecting the performance of super-capACitors, are also discussed.
Abstract: Swift developments in electronic devices and future transportation/energy production directions have forced researchers to develop new and contemporary devices with higher power capacities, extended cycle lives, and superior energy densities. Supercapacitors are promising devices with excellent power densities and exceptionally long cycle lives. However, commercially available supercapacitors, which commonly use high-surface-area carbon-based electrodes and organic solutions as electrolytes, suffer from inferior energy densities due to the limited accessibility of surface area and constrained operating potential window of electrolytes. To address the issue of inferior energy densities, new high-capacity electrode materials and new/state-of-the-art electrolytes, such as ionic liquids, gel polymers, or even solid-state electrolytes, have been developed and evaluated vigorously in recent years. In this brief review, different types of supercapacitors, according to their charge storage mechanisms, have been discussed in detail. Since carbon-based active materials are the key focus of this review, synthesis parameters, such as carbonisation, activation, and functionalisation, which can impact a material’s physiochemical characteristics, ultimately affecting the performance of supercapacitors, are also discussed. Finally, the synthesis and applications of different carbon-based materials, i.e., carbon nanotubes, graphene, and activated carbon, have been reviewed, followed by conclusions and outlook.

5 citations