Super long-life supercapacitor electrode materials based on hierarchical porous hollow carbon microcapsules

Ran, Fen; Zhang, Xuanxuan; Liu, Yuansen; Shen, Kuiwen; Niu, Xiaoqin; Tan, Yongtao; Kong, Ling‐Bin; Kang, Long; Xu, Chaochao; Chen, Shaowei

doi:10.1039/c5ra15594k

Cited by 23 publications

(7 citation statements)

References 35 publications

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“…Ran et al synthesized hollow carbon spheres with macroporous shell by carbonization of a polymer sphere . The polymer sphere was synthesized by using the traditional radical polymerization and emulsion polymerization method.…”

Section: Soft Templating Synthesismentioning

confidence: 99%

“…Ran et al synthesized hollow carbon spheres with macroporous shell by carbonization of a polymer sphere. 377 The polymer sphere was synthesized by using the traditional radical polymerization and emulsion polymerization method. It had a non-cross-linked core of poly(styrene-r-methylacrylic acid) and a cross-linked shell of poly(styrene-r-divinylbenzene-r-methylacrylic acid).…”

Section: Morphology and Structure Designmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis, Properties, and Applications of Hollow Micro-/Nanostructures

Wang¹,

Feng²,

Bai³

et al. 2016

Chem. Rev.

1,272

826

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In this Review, we aim to provide an updated summary of the research related to hollow micro- and nanostructures, covering both their synthesis and their applications. After a brief introduction to the definition and classification of the hollow micro-/nanostructures, we discuss various synthetic strategies that can be grouped into three major categories, including hard templating, soft templating, and self-templating synthesis. For both hard and soft templating strategies, we focus on how different types of templates are generated and then used for creating hollow structures. At the end of each section, the structural and morphological control over the product is discussed. For the self-templating strategy, we survey a number of unconventional synthetic methods, such as surface-protected etching, Ostwald ripening, the Kirkendall effect, and galvanic replacement. We then discuss the unique properties and niche applications of the hollow structures in diverse fields, including micro-/nanocontainers and reactors, optical properties and applications, magnetic properties, energy storage, catalysis, biomedical applications, environmental remediation, and sensors. Finally, we provide a perspective on future development in the research relevant to hollow micro-/nanostructures.

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Section: Soft Templating Synthesismentioning

confidence: 99%

Section: Morphology and Structure Designmentioning

confidence: 99%

Synthesis, Properties, and Applications of Hollow Micro-/Nanostructures

Wang¹,

Feng²,

Bai³

et al. 2016

Chem. Rev.

1,272

826

View full text Add to dashboard Cite

show abstract

“…where C (F) is the capacitance of the electrode, I is the constant discharge current (A), ∆t (s) is the discharge time, and ∆V (V) is the potential window. 67 The specific capacitance, C m (F g −1 ), is obtained by dividing the capacitance by the mass of the difference of the PGE before and after electrodeposition.…”

Section: Galvanostatic Charge-discharge Experimentsmentioning

confidence: 99%

One-step potentiostatic codeposition and electrochemical studies of poly(1-pyrenyl)-2,5-di(2-thienyl)pyrrole-co-pyrrole) film for electrochemical supercapacitors

Görçay¹,

Çelik²,

Şahin³

2018

Turk J Chem

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In this paper, we report a simple, low-cost, and environmentally friendly electrochemical method to obtain a novel copolymer consisting of 1-pyrenyl-2,5-di(2-thienyl)pyrrole and pyrrole on a pencil graphite electrode (PGE). Poly(1-pyrenyl)-2,5-di(2-thienyl)pyrrole-co-pyrrole) that is P(PyrPy-coPy) film was prepared by one-step potentiostatic codeposition in an ethanol solution containing PyrPy and Py monomers for supercapacitor applications. The electrodeposition of homopolymer and copolymer modified electrodes was carried out on the surface of the PGE via chronocoulometry. For comparison, P(Py)/PGE and P(PyrPy)/PGE were also electrochemically synthesized under the same reaction conditions. The surface morphologies of all the electrode materials were analyzed by field emission scanning electron microscopy. The capacitive properties of the modified PGEs were investigated in 1 M H 2 SO 4 electrolyte solution by cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge-discharge methods. Compared with P(Py)/PGE and P(PyrPy)/PGE, the P(PyrPy-coPy)/PGE composite exhibited the best electrochemical behavior and had the highest specific capacitance value of 397.18 F g −1 in 1 M H 2 SO 4 at a scan rate of 2 mV s −1. These results indicated that this modified electrode can be used as an electrode material for electrochemical supercapacitors.

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“…The research on EDLC electrode materials is now shied towards novel materials including conducting polymers, nano metal oxides, and heteroatom doped carbon materials. [21][22][23][24] Pseudocapacitors (PCs), on the other hand, store energy via faradic charge storage mechanism occurring due to the reversible reactions between the electrolyte and electrode interfaces. Typically, electrodes materials of PCs are composed of Transition Metal Oxides (TMOs) and conducting polymers.…”

Section: Introductionmentioning

confidence: 99%