Ultrafast pore-tailoring of dense microporous carbon for high volumetric performance supercapacitors in organic electrolyte

Li, Qiqi; Jiang, Yuting; Jiang, Zimu; Zhu, Jiayao; Gan, Xuemeng; Qin, Fuwei; Tang, Tingting; Luo, Wanxia; Guo, Nannan; Liu, Zheng; Wang, Luxiang; Zhang, Su; Jia, Dianzeng; Fan, Zhuangjun

doi:10.1016/j.carbon.2022.01.042

Cited by 74 publications

(23 citation statements)

References 66 publications

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“…The specific capacitance of N‐450 electrode is significantly higher than those of the other three electrodes. More importantly, the N‐450 electrode exhibits a higher capacitance retention (59.63 %) than N‐400 (58.61 %), N‐500 (56.79 %), N‐600 (51.09 %) (Figure S7), which might be attributed to the relatively appropriate pore size that can facilitate the diffusion of the OH − ions and electrical transfer ensuring a higher‐rate charge‐discharge performance for energy storage [27] …”

Section: Resultsmentioning

confidence: 99%

Simple Controllable Fabrication of Novel Flower‐Like Hierarchical Porous NiO: Formation Mechanism, Shape Evolution and Their Application into Asymmetric Supercapacitors

Wei

Cao

et al. 2022

ChemElectroChem

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The rational tailoring of micro‐ and mesoporous distribution for porous transition metal oxide‐based nanomaterials is an important factor to control their electrochemistry performances. Herein, flower‐like hierarchical microspheres assembled by ultrathin nickel oxide (NiO) nanosheets were synthesized by a facile solvothermal route and subsequent annealing process. Theoretical analysis and experimental results demonstrate that NiO ultrathin nanosheets prepared by calcination at 450 °C (N‐450) have the optimal micro‐ and mesoporous distribution. The optimal microstructure provides plenty of ion transport channels and abundant active sites. As expected, the N‐450 electrode delivers an ultrahigh specific capacity of 546.53 F g−1 at a current density of 2 A g−1, which is greater than other electrodes. Remarkably, the assembled N‐450//AC asymmetric supercapacitor (ASC) achieves a high energy density of 29.7 Wh kg−1 (at a power density of 800 W kg−1) and exhibits an excellent cycling stability. This work demonstrates an available avenue to enhance the performance of supercapacitor by accurately controlling calcination temperature to adjust the porous architectures of ultrathin NiO nanosheets.

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Section: Resultsmentioning

confidence: 99%

Simple Controllable Fabrication of Novel Flower‐Like Hierarchical Porous NiO: Formation Mechanism, Shape Evolution and Their Application into Asymmetric Supercapacitors

Wei

Cao

et al. 2022

ChemElectroChem

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“…It is worth noting that both samples show two characteristic peaks at about 1350 and 1580 cm −1 , originating from carbon cloth substrate, representing the D band and G band of carbon, respectively. 36 To further investigate the surface compositions of Co 4 S 3 , XPS tests were performed and the results shown in Fig. 2c .…”

Section: Resultsmentioning

confidence: 99%

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

et al. 2022

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“…Taking advantage of its long lifetime, high power density and fast charging-discharging rate, the supercapacitor attracts a lot of attention in fields ranging from portable electronic products to vehicle parts [3,4]. From the view of material design, the supercapacitive performance of electrode materials can be improved through a higher conductivity and surface area as well as an appropriate pore size for enhanced efficient ion transmission [5].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of 4,4′-biphenyl Dicarboxylic Acid-Based Nickel Metal Organic Frameworks with a Tunable Pore Size towards High-Performance Supercapacitors

Zhang

Yin

et al. 2022

Nanomaterials

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Metal-organic frameworks (MOFs) have attracted significant research interest for supercapacitor applications due to their high-tunable conductivity and their structure’s pore size. In this work, we report a facile one-step hydrothermal method to synthesize nickel-based metal-organic frameworks (MOF) using organic linker 4, 4′-biphenyl dicarboxylic acid (BPDC) for high-performance supercapacitors. The pore size of the Ni-BPDC-MOF nanostructure is tuned through different synthesization temperatures. Among them, the sample synthesized at 180 °C exhibits a nanoplate morphology with a specific surface area of 311.99 m2·g−1, a pore size distribution of 1–40 nm and an average diameter of ~29.2 nm. A high specific capacitance of 488 F·g−1 has been obtained at a current density of 1.0 A·g−1 in a 3 M KOH aqueous electrolyte. The electrode shows reliable cycling stability, with 85% retention after 2000 cycles. The hydrothermal process Ni-BPDC-MOF may provide a simple and efficient method to synthesize high-performance hybrid MOF composites for future electrochemical energy storage applications.

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Ultrafast pore-tailoring of dense microporous carbon for high volumetric performance supercapacitors in organic electrolyte

Cited by 74 publications

References 66 publications

Simple Controllable Fabrication of Novel Flower‐Like Hierarchical Porous NiO: Formation Mechanism, Shape Evolution and Their Application into Asymmetric Supercapacitors

Simple Controllable Fabrication of Novel Flower‐Like Hierarchical Porous NiO: Formation Mechanism, Shape Evolution and Their Application into Asymmetric Supercapacitors

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

Facile Synthesis of 4,4′-biphenyl Dicarboxylic Acid-Based Nickel Metal Organic Frameworks with a Tunable Pore Size towards High-Performance Supercapacitors

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