Structure and Electrochemical Capacitance of Nitrogen-enriched Mesoporous Carbon

Kodama, Masaya; Yamashita, Juli; Soneda, Yasushi; Hatori, Hiroaki; Kamegawa, Katsumi; Moriguchi, Isamu

doi:10.1246/cl.2006.680

Cited by 40 publications

(27 citation statements)

References 8 publications

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“…The contribution of nitrogen to pseudofaradaic effects has already been studied in the literature although the mechanism still remains somewhat uncertain. [1,18,19,[23][24][25] To explore the pseudocapacitive contribution in the acidic electrolytic medium, cyclic voltammetry was recorded for Y-AN and AC in a three-electrode cell using a graphite rod as a counter electrode and a Hg/Hg 2 SO 4 reference electrode (Fig. 5).…”

Section: Electrochemical Behaviormentioning

confidence: 99%

“…The Y-AN carbon presents a superior performance when compared with both nitrogen-enriched mesoporous carbons obtained from template procedures [17,19] and microporous carbons obtained from conventional activation methods. [8,13,20] Data from the literature for N-doped mesoporous carbon show capacitance values up to 220 F g -1 in a sulfuric acid medium.…”

Section: Full Papermentioning

confidence: 99%

“…[8,13,20] Data from the literature for N-doped mesoporous carbon show capacitance values up to 220 F g -1 in a sulfuric acid medium. [17][18][19] Despite containing comparable or higher nitrogen and/or oxygen content, their lower capacitance highlights that a narrow PSD within the mesopore range (ca. 29 nm, 3 nm) does not provide an efficient formation of the EDL.…”

Section: Full Papermentioning

confidence: 99%

“…200 F g -1 at higher current densities. [18,19] In this paper, we present the electrochemical behavior of microporous templated carbon with a narrow PSD used as an electrode for a supercapacitor in an aqueous medium. In order to obtain an advanced material with high values of capacitance, we used a nitrogen-containing carbon precursor to dope the carbon matrix and favor the development of pseudofaradaic charge-transfer processes.…”

Section: Introductionmentioning

confidence: 99%

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The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template

Ania

Khomenko

Raymundo-Piñero

et al. 2007

Adv Funct Materials

491

300

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A novel microporous templated carbon material doped with nitrogen is synthesized by using a two‐step nanocasting process using acrylonitrile (AN) and propylene as precursors, and Na–Y zeolite as a scaffold. Liquid‐phase impregnation and in situ polymerization of the nitrogenated precursor inside the nanochannels of the inorganic scaffold, followed by gas‐phase impregnation with propylene, enables pore‐size control and functionality tuning of the resulting carbon material. The material thereby obtained has a narrow pore‐size distribution (PSD), within the micropore range, and a large amount of heteroatoms (i.e., oxygen and nitrogen). In addition, the carbon material inherits the ordered structure of the inorganic host. Such features simultaneously present in the carbon result in it being ideal for use as an electrode in a supercapacitor. Although presenting a moderately developed specific surface area (SBET = 1680 m2 g–1), the templated carbon material displays a large gravimetric capacitance (340 F g–1) in aqueous media because of the combined electrochemical activity of the heteroatoms and the accessible porosity. This material can operate at 1.2 V in an aqueous medium with good cycleability—‐beyond 10 000 cycles—and is extremely promising for use in the development of high‐energy‐density supercapacitors.

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Section: Electrochemical Behaviormentioning

confidence: 99%

Section: Full Papermentioning

confidence: 99%

Section: Full Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template

Ania

Khomenko

Raymundo-Piñero

et al. 2007

Adv Funct Materials

491

300

View full text Add to dashboard Cite

show abstract

“…By usin g melamine-formaldehyde resin as carbon precursor and commercial fumed silica (Aerosil-200) as hard template, nitrogen-enriched mesoporous carbon sphere [157] and other carbon replica made from aniline [158] quinoline-polymerized pitch [159] as carbon precursor is also reported. Summary of preparation layout for nitrogen rich OMC is shown in Table 2.5.…”

Section: Surface Modifi Ed Mesoporous Nitrogen Rich Carbon By Nanocasmentioning

confidence: 99%

The Synthetic Strategy for Developing Mesoporous Materials through Nanocasting Route

Kumar¹,

Chowdhury²

2015

Advanced Functional Materials

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Nanocasting is a powerful methodology for creating ordered mesoporous materials that are more diffi cult to synthesize by conventional processes. Synthesis starts with fabrication of inorganic/carbon precursors inside the nanospaces of a mesoporous hard template, which is used as a true mold to produce the mesoporous materials with controllable pore size, morphology of the network. Aft er fabrication inside the nanospaces, the template framework is selectively removed and the mesoporous ordered inorganic/organic material is obtained. In this chapter, a comprehensive literature survey for fabrication of mesoporous materials via mesoporous hard template, e.g., SBA-15, KIT-6, and mesoporous carbon, is presented. First two sections are limited to the basic understanding of nanocasting methodology. Th e later three sections comprise a review of works based on mesoporous silica/carbon template, which has been nurturing till date. A wide range of studies for synthesis of several inorganic compounds range from metal oxides, metal sulfi des, metal carbide phosphate, and ceramics is covered.

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Sustainable Materials for Electrochemical Capacitors

2023

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Highly tunable properties of materials used for the construction of electrochemical capacitors make them a perfect choice for a broad scope of applications with high power demand. The ability to design the system according to the expected power/energy profile allows them being considered as powerful alternatives to conventional capacitors and batteries. Carbon materials with the developed specific surface area are the most common electrode components of electrochemical capacitors because of their cost, versatile form, availability, easiness of processing, and eco-friendly character. Biomass is frequently used for carbon production, however, among many natural organic materials, only some of them should be regarded as a useful precursor. Ongoing research brings many novel concepts of using bio-derived materials in high-performance electrochemical capacitors. This review article summarizes the progress on the applications of abundant biomaterials and materials derived from biomass in the field. Various 'green' resources have been used as precursors for activated carbons, as binders, or as gel (gelating) agents for solid-state electrolytes. The authors attempt to critically evaluate a commercial potential of these materials upon ongoing trends in research & development of electrochemical capacitors. Pros and cons of utilizing the selected biomass materials are provided and perspectives for their advanced processing are discussed.

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Structure and Electrochemical Capacitance of Nitrogen-enriched Mesoporous Carbon

Cited by 40 publications

References 8 publications

The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template

The Large Electrochemical Capacitance of Microporous Doped Carbon Obtained by Using a Zeolite Template

The Synthetic Strategy for Developing Mesoporous Materials through Nanocasting Route

Sustainable Materials for Electrochemical Capacitors

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