Self-templated synthesis of interconnected porous carbon nanosheets with controllable pore size: Mechanism and electrochemical capacitor application

Lee, Ji-Young; Lee, Yeong A.; Yoo, Chung‐Yul; Yoo, Jung Joon; Gwak, Raekeun; Cho, Woo Kyung; Kim, Bongsoo; Yoon, Ho Kyoung

doi:10.1016/j.micromeso.2017.10.047

Cited by 29 publications

(8 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an example of organic salt methods, interconnected porous carbon nanosheets (IPCNs) with SSA up to 1736 m 2 g −1 were synthesized by the carbonization of potassium and sodium citrate salts 177. The IPCN was determined to have a thickness of 20–50 nm and a length of 0.5–2 µm.…”

Section: Self‐template Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

et al. 2020

View full text Add to dashboard Cite

Supercapacitors (SCs) have experienced a significant increase in research activity and commercialization during the past few decades. As the primary and most important electrode active material for commercial SCs, porous carbon is produced at an industrial‐scale through traditional carbonization‐activation strategies. Nevertheless, commercial porous carbon materials have some disadvantages such as high production cost, corrosion of equipment, and emission of toxic gases and byproduct pollutants during production. In recent years, huge efforts have been made to develop novel synthesis strategies for porous carbon materials. This review focuses on the pore formation mechanisms in traditional carbonization‐activation methods, emerging activation methods, template methods, self‐template methods, and novel emerging methods for the synthesis of porous carbons for SCs. Strategies developed so far for the synthesis of porous carbon materials are summarized. The mechanisms and recent advances for each strategy are reviewed. Furthermore, future directions and synthesis strategies for porous carbons are proposed.

show abstract

Section: Self‐template Methodsmentioning

confidence: 99%

“…a) The preparation schematic diagram of IPCN (above), the corresponding CV curves at 5 mV s −1 , the specific capacitances at different scan rates and cycling stability tested in 6 mol L −1 KOH (below). Reproduced with permission 177. Copyright 2017, Elsevier.…”

Section: Self‐template Methodsmentioning

confidence: 99%

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Furthermore, the melting phenomenon has another significant effect since the final morphology of the carbon particles is pre‐shaped in this stage. In some cases, the pyrolysis of organic salts leads to free or inter‐connected porous carbon nanosheets that have a thickness <100 nm [113–118] . This is an important achievement since this kind of morphology provides short diffusional paths, which is extremely important for many applications that require fast adsorption‐desorption rates, such as supercapacitors, sodium‐ion batteries, and hybrid‐ion capacitors [119] …”

Section: Self‐activation Methodsmentioning

confidence: 99%

More Sustainable Chemical Activation Strategies for the Production of Porous Carbons

2020

View full text Add to dashboard Cite

The preparation of porous carbons attracts a great deal of attention given the importance of these materials in many emerging applications, such as hydrogen storage, CO2 capture, and energy storage in supercapacitors and batteries. In particular, porous carbons produced by applying chemical activation methods are preferred because of the high pore development achieved. However, given the environmental risks associated with conventional activating agents such as KOH, the development of greener chemical activation methodologies is an important objective. This Review summarizes recent progress in the production of porous carbons by using more sustainable strategies based on chemical activation. The use of less‐corrosive chemical agents as an alternative to KOH is thoroughly reviewed. In addition, progress achieved to date by using emerging self‐activation methodologies applied to organic salts and biomass products is also discussed.

show abstract

“…The precise control of porous structures has increasingly attracted the attention of researchers in past decades. − Porous carbon materials have unique properties that are anticipated to be useful for many applications such as adsorption and separation, electrodes of Li ion batteries, drug delivery, and catalysis. − The templating method has been widely used for the production of porous carbon . This method enables easy control of the pore size and pore structure depending on the characteristics of the used template.…”

Section: Introductionmentioning

confidence: 99%

Energy-Efficient Templating Method for the Industrial Production of Porous Carbon Particles by a Spray Pyrolysis Process Using Poly(methyl methacrylate)

Rahmatika

Yuan

Arif

et al. 2018

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Template selection is a critical step to determining an effective and efficient method for the synthesis of porous materials. We introduce the use of the low-cost poly(methyl methacrylate) (PMMA) as a template in a spray pyrolysis process for the synthesis of a porous carbon particle. Monodisperse, negatively charged, three sizes of PMMA particles are used to evaluate the porous structure formation. The highest surface area of the prepared porous carbon particle is 172 m 2 /g, which is double that of carbon particles produced using a polystyrene latex (PSL) template. The high surface area is attributed to the low PMMA decomposition residue and the formation of a micropore and a mesopore. The use of PMMA reduces the energy consumption for template decomposition by 32% compared with PSL. This benefit suggests an excellent potential for the use of PMMA in the scaled-up production of porous materials.

show abstract

Self-templated synthesis of interconnected porous carbon nanosheets with controllable pore size: Mechanism and electrochemical capacitor application

Cited by 29 publications

References 48 publications

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

More Sustainable Chemical Activation Strategies for the Production of Porous Carbons

Energy-Efficient Templating Method for the Industrial Production of Porous Carbon Particles by a Spray Pyrolysis Process Using Poly(methyl methacrylate)

Contact Info

Product

Resources

About