Direct synthesis of unimodal and bimodal nanoporous carbon

Pang, Jiebin; Hu, Qingyuan; Wu, Zhiwang; Hampsey, J. Eric; He, Jibao; Lu, Yunfeng

doi:10.1016/j.micromeso.2004.06.009

Cited by 62 publications

(35 citation statements)

References 30 publications

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“…[21], mesoporous carbon CMK-3 ( ) [22], hierarchical porous graphitic carbon (^) [23], and phosphorus-enriched carbon (~) [24]. [27], using sucrose as the carbon source and silica clusters and colloids as the template. Growth of MnO 2 onto the mesoporous carbon was realized according to the method reported by Long and co-workers [28].…”

Section: Methodsmentioning

confidence: 99%

Design and Synthesis of Hierarchical Nanowire Composites for Electrochemical Energy Storage

Chen

Qin

Ding

et al. 2009

Adv Funct Materials

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439

282

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Nanocomposites of interpenetrating carbon nanotubes and vanadium pentoxide (V2O5) nanowires networks are synthesized via a simple in situ hydrothermal process. These fibrous nanocomposites are hierarchically porous with high surface area and good electric conductivity, which makes them excellent material candidates for supercapacitors with high energy density and power density. Nanocomposites with a capacitance up to 440 and 200 F g−1 are achieved at current densities of 0.25 and 10 A g−1, respectively. Asymmetric devices based on these nanocomposites and aqueous electrolyte exhibit an excellent charge/discharge capability, and high energy densities of 16 W h kg−1 at a power density of 75 W kg−1 and 5.5 W h kg−1 at a high power density of 3 750 W kg−1. This performance is a significant improvement over current electrochemical capacitors and is highly competetive with Ni–MH batteries. This work provides a new platform for high‐density electrical‐energy storage for electric vehicles and other applications.

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Section: Methodsmentioning

confidence: 99%

Design and Synthesis of Hierarchical Nanowire Composites for Electrochemical Energy Storage

Chen

Qin

Ding

et al. 2009

Adv Funct Materials

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439

282

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“…[42] Lu and his co-workers synthesized unimodal and bimodal mesoporous carbons from the sucrose/silica nanocomposites prepared by sol-gel process of TEOS with or without colloidal silica particles in the presence of sucrose. [43] Lu and his coworkers also reported the synthesis of continuous mesoporous carbon thin films by a rapid sol-gel, spin-coating process using sucrose as the carbon precursor and TEOS as the silica precursor. [44] Continuous sucrose/silica nanocomposite thin films were formed by the spin-coating of homogeneous sucrose/silicate/water solutions that were prepared by reacting TEOS in acidic sucrose solutions.…”

Section: Mesoporous Carbons With Disordered Pore Structuresmentioning

confidence: 99%

Recent Progress in the Synthesis of Porous Carbon Materials

2006

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In this review, the progress made in the last ten years concerning the synthesis of porous carbon materials is summarized. Porous carbon materials with various pore sizes and pore structures have been synthesized using several different routes. Microporous activated carbons have been synthesized through the activation process. Ordered microporous carbon materials have been synthesized using zeolites as templates. Mesoporous carbons with a disordered pore structure have been synthesized using various methods, including catalytic activation using metal species, carbonization of polymer/polymer blends, carbonization of organic aerogels, and template synthesis using silica nanoparticles. Ordered mesoporous carbons with various pore structures have been synthesized using mesoporous silica materials such as MCM‐48, HMS, SBA‐15, MCF, and MSU‐X as templates. Ordered mesoporous carbons with graphitic pore walls have been synthesized using soft‐carbon sources that can be converted to highly ordered graphite at high temperature. Hierarchically ordered mesoporous carbon materials have been synthesized using various designed silica templates. Some of these mesoporous carbon materials have successfully been used as adsorbents for bulky pollutants, as electrodes for supercapacitors and fuel cells, and as hosts for enzyme immobilization. Ordered macroporous carbon materials have been synthesized using colloidal crystals as templates. One‐dimensional carbon nanostructured materials have been fabricated using anodic aluminum oxide (AAO) as a template.

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“…The formation of micropores and smaller mesopores is due to the removal of silica clusters that were uniformly distributed within the carbon framework. [ 19 ] The high-resolution TEM (Figure 1 d) image suggests that the "bubbles" observed in Figure 1 c are graphite shells formed by the catalytic carbonization of sucrose. [ 20 ] The formation of such graphite shells, which improve the electrode conductivity, is further confi rmed by their (002) graphite x-ray diffraction peak ( Figure S1 in the Supporting Information).…”

mentioning

confidence: 97%

High‐Performance Supercapacitors Based on Hierarchically Porous Graphite Particles

Chen

Wen

Yan

et al. 2011

Advanced Energy Materials

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Hierarchically porous graphite particles are synthesized using a continuous, scalable aerosol approach. The unique porous graphite architecture provides the particles with high surface area, fast ion transportation, and good electronic conductivity, which endows the resulting supercapacitors with high energy and power densities. This work provides a new material platform for high‐performance supercapacitors with high packing density, and is adaptable to battery electrodes, fuel‐cell catalyst supports, and other applications.

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Direct synthesis of unimodal and bimodal nanoporous carbon

Cited by 62 publications

References 30 publications

Design and Synthesis of Hierarchical Nanowire Composites for Electrochemical Energy Storage

Design and Synthesis of Hierarchical Nanowire Composites for Electrochemical Energy Storage

Recent Progress in the Synthesis of Porous Carbon Materials

High‐Performance Supercapacitors Based on Hierarchically Porous Graphite Particles

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