A wearable All-Solid-State supercapacitor with extremely high stability based on 2D Co-HCF/GO

Jiang, Hualin; Chen, Jiezeng; Shi, Yangming; Chen, Pinghua; Tang, Xianglu; Jiang, Wei; Zou, Zilong; Wu, Guosheng

doi:10.1016/j.apsusc.2022.152739

Cited by 18 publications

(6 citation statements)

References 52 publications

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“…The diffractograms exhibit sharp and high‐intensity peaks, indicating a high crystallinity degree of samples. Rietveld refinement of the CoHCF pattern displayed a face‐centered cubic crystal structure ( a = 10.36 Å), the most common PBA crystalline structure 37 . The characteristics of this crystalline structure include its homogeneity, uniform particle size, and interconnected cavities formed in the particles 38 .…”

Section: Resultsmentioning

confidence: 99%

“…Digital photographs of each of the synthesized materials (shown in Figure 3A structure. 37 The characteristics of this crystalline structure include its homogeneity, uniform particle size, and interconnected cavities formed in the particles. 38 Meanwhile, the Rietveld refinement of the mixed ZnCoHCF showed that the solids consisted of two cubic structures.…”

Section: Morphological and Structural Characterizations Coznhcf Seriesmentioning

confidence: 99%

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Mixed cobalt–zinc hexacyanoferrate hollow micro‐cubes for a high‐voltage hybrid supercapacitor

Villalva‐Mejorada

Acevedo–Peña

Leyva‐Porras

et al. 2022

Intl J of Energy Research

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Summary The behavior of Prussian Blue Analogs (PBAs) is determined by the external transition metal coordinated to the N‐end of the hexacyanoferrate block. Combining transition metal ions allows obtaining a material with improved performance for energy‐related applications. A mixed PBA was formed with cobalt hexacyanoferrate (CoHCF) and ZnHCF. The former has two redox processes and easy modulation of its morphology, while the latter exhibits fast kinetics during the charge transfer. The morphology of the solids was controlled by composition, shaping hollow structures at a high concentration of Co2+ in the PBA. Spectroscopic characterization displayed the change in the charge density at the N‐end of the cyanide bridges caused by the polarizing power of Zn2+. XRD showed the formation of more than one crystalline phase. The presence of Co2+ provided larger specific capacity and stability during cycling, while Zn2+ afforded a higher potential and improved rate capability to the solid. The material with the best electrochemical behavior was employed to assemble a hybrid supercapacitor, reaching specific energy of 30 Wh kg−1 at a power of 450 W kg−1 and 7 Wh kg−1 at 5.5 kW kg−1. Additionally, the device retained 85% of its initial capacitance after 5000 galvanostatic charge–discharge cycles.

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Section: Resultsmentioning

confidence: 99%

Section: Morphological and Structural Characterizations Coznhcf Seriesmentioning

confidence: 99%

Mixed cobalt–zinc hexacyanoferrate hollow micro‐cubes for a high‐voltage hybrid supercapacitor

Villalva‐Mejorada

Acevedo–Peña

Leyva‐Porras

et al. 2022

Intl J of Energy Research

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“…The various composites for flexible solid-state electrodes used in the FSHSCs are listed in Table 1. 85,[138][139][140][141][142][144][145][146][149][150][151][152]155,[159][160][161][162][163][164][165][166][167][168][169] Although different yarn-and sheet-type FSHSCs described above have expanded our portfolio of these devices for wearable devices, the interdigitated micro-structure FSHSCs will become the EES of the future miniaturized, flexible, and wearable electronic devices. These are discussed in detail in the next section.…”

Section: Reviewmentioning

confidence: 99%

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

Lee

Yang

Kim

et al. 2022

Energy Environ. Sci.

124

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“…102 Strategies to enhance the stability involve the functionalization of GO with various substances, such as polymers or metal nanoparticles, to improve its electrochemical behavior and prevent degradation. 103 Another disadvantage is the high production cost of high-quality GO. The scalable synthesis of large quantities of GO with consistent quality and low cost remains a disadvantage.…”

Section: Advantages and Disadvantages Of Go In Sc Technologymentioning

confidence: 99%

Recent advances in energy storage with graphene oxide for supercapacitor technology

Mousavi,

Hashemi,

Kalashgrani

et al. 2023

Sustainable Energy Fuels

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A wearable All-Solid-State supercapacitor with extremely high stability based on 2D Co-HCF/GO

Cited by 18 publications

References 52 publications

Mixed cobalt–zinc hexacyanoferrate hollow micro‐cubes for a high‐voltage hybrid supercapacitor

Mixed cobalt–zinc hexacyanoferrate hollow micro‐cubes for a high‐voltage hybrid supercapacitor

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

Recent advances in energy storage with graphene oxide for supercapacitor technology

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