Synthesis of perfectly ordered mesoporous carbons by water-assisted mechanochemical self-assembly of tannin

Castro-Gutiérrez, Jimena; Sánchez-Sánchez, Á.; Ghanbaja, Jaâfar; Díez, Noel; Sevilla, Marta; Celzard, Alain

doi:10.1039/c8gc02295j

Cited by 67 publications

(54 citation statements)

References 66 publications

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“…To address this key issue, extensive studies have been done to develop high-performance electrode materials, including conducting polymers [12,13], heteroatomdoped carbon materials [14][15][16][17][18][19], transition metal phosphates [20], and transition metal oxides/hydroxides [21][22][23][24][25][26][27]. Lin et al [28] reported a nitrogen-doped mesoporous carbon, of which the specific capacitance can reach to 855 F g −1 at 1 A g −1 in 0.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin Ni(OH)2 layer coupling with graphene for fast electron/ion transport in supercapacitor

et al. 2020

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Integration of fast electrochemical double-layer capacitance and large pseudocapacitance is a practical way to improve the overall capability of supercapacitor, yet remains challenging. Herein, an effective cyanogel synthetic strategy was demonstrated to prepare ultrathin Ni(OH) 2 nanosheets coupling with conductive reduced graphene oxide (rGO) (rGO-Ni(OH) 2) at ambient condition. Ultrathin Ni(OH) 2 nanosheet with 3-4 layers of edge-sharing octahedral MO 6 maximally exposes the active surface of Faradic reaction and promotes the ion diffusion, while the conductive rGO sheet boosts the electron transport during the reaction. Even at 30 A g −1 , the optimal sample can deliver a specific capacitance of 1119.52 F g −1 , and maintain 82.3% after 2000 cycles, demonstrating much higher electrochemical capability than bare Ni(OH) 2 nanosheets. A maximum specific energy of 44.3 W h kg −1 (148.5 W kg −1) is obtained, when assembled in a two-electrode system rGO-Ni(OH) 2 //rGO. This study provides an insight into efficient construction of two-dimensional hybrid electrodes with high performance for the new-generation energy storage system.

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Section: Introductionmentioning

confidence: 99%

Ultrathin Ni(OH)2 layer coupling with graphene for fast electron/ion transport in supercapacitor

et al. 2020

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“…9 Many efforts to synthesise OMCs from biosourced materials by hard-and soft-templating methods have been made. [10][11][12][13][14][15][16][17] In particular, condensed tannins extracted from trees (mimosa, quebracho and pine, among others), which are principally based on flavonoid-type polyphenols, are able to undergo autocondensation reactions and hence do not require using crosslinkers. 18 This remarkable feature makes them suitable, non-toxic and environment-friendly alternative carbon precursors to resorcinol or phenol.…”

Section: Introductionmentioning

confidence: 99%

High-Rate Capability of Supercapacitors Based on Tannin-Derived Ordered Mesoporous Carbons

Castro-Gutiérrez

Díez

Sevilla

et al. 2019

ACS Sustainable Chem. Eng.

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Ordered mesoporous carbons (OMCs) are produced by an easy, fast and green surfactant-water-assisted mechanochemical mesostructuration (SWAMM) method, using only tannin, water and Pluronic® F127 as raw materials. OMCs are physically activated with CO 2 to increase their surface area from ~500 m 2 g -1 to ~2000 m 2 g -1 while maintaining the mesoporosity fairly unaltered, which allow studying the effect of the micropore size distribution on the supercapacitors performances both in aqueous and organic electrolytes. Selected activated OMCs (AOMCs) reach maximum cell capacitance values of 37 and 27 F g -1 , at 0.2 A g -1 , in aqueous and organic electrolytes, respectively. High long-term stabilities over time and after continuous

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“…Mechanical energy generated from grinding or shearing can increase the contact area and enhance the interaction between the precursors . In the reported studies, ordered mesoporous carbons can be produced from the ball milling of carbon precursors and templates . Ball milling is considered as a suitable method as it can not only afford higher mechanical energy with repeatability than those by hand‐grinding but also avoid the waste of solvents and thus meets the requirements of green industrial production.…”

Section: Introductionmentioning

confidence: 99%

“…Mechanochemical solid‐state synthesis is an efficient method to synthesize various inorganic materials and organic materials, for it comprises fewer synthesis steps and can be implemented with low amounts of solvents or even under solvent‐free conditions . Mechanical energy generated from grinding or shearing can increase the contact area and enhance the interaction between the precursors . In the reported studies, ordered mesoporous carbons can be produced from the ball milling of carbon precursors and templates .…”

Section: Introductionmentioning

confidence: 99%

A Mechanochemical‐Assisted Synthesis of Boron, Nitrogen Co‐Doped Porous Carbons as Metal‐Free Catalysts

Zhao

Dong

Chen

et al. 2020

Chemistry A European J

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Ag reen and convenient solid-state method assisted by mechanical energy is employed for the synthesis of boron (B) and nitrogen (N) co-doped porous carbons (B,N-Cs). Glutamic acid (Glu) and boric acid (H 3 BO 3 )a re used as the N-containing carbon precursor and boron source,r espectively.T his methodi se asy to performa nd proved to be efficient towardsc o-doping Ba nd Ni nto the carbonm atrix with high contentso fB(7 atom %) and N( 10 atom %). By adjusting the molar ratio of H 3 BO 3 to Glu, the surface chemical states of Ba nd Nc ould be readily modulated. When increasing H 3 BO 3 dosage, the pore size of B,N-Cs could be tuned ranging from micropores to mesopores with aB runauer-Emmett-Teller (BET) surface area up to 940 m 2 g À1 .F inally,t he B,N-Csw ere applied as metal-free catalysts for the cycloaddition of CO 2 to epoxides, whicho utperform the Ndoped carbon catalyst( NC-900) and the physically mixed catalysto fN C-900/B 4 C. The enhanced activity is attributed to the cooperative effect between Ba nd Ns ites. X-ray photoelectron spectroscopy( XPS) analysisr eveals that BN 3 in the B,N-Cs serves as ac riticala ctive site for the cooperative catalysis.

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Synthesis of perfectly ordered mesoporous carbons by water-assisted mechanochemical self-assembly of tannin

Abstract: Water-assisted mechanosynthesis allows preparing perfectly ordered mesoporous carbons from tannins without crosslinkers or any drying or curing step.

Cited by 67 publications

References 66 publications

Ultrathin Ni(OH)2 layer coupling with graphene for fast electron/ion transport in supercapacitor

Ultrathin Ni(OH)2 layer coupling with graphene for fast electron/ion transport in supercapacitor

High-Rate Capability of Supercapacitors Based on Tannin-Derived Ordered Mesoporous Carbons

A Mechanochemical‐Assisted Synthesis of Boron, Nitrogen Co‐Doped Porous Carbons as Metal‐Free Catalysts

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