Excellent electrochemical performances of nanocast ordered mesoporous carbons based on tannin-related polyphenols as supercapacitor electrodes

JOURNAL OF POWER SOURCES

卷:344

Article

Sanchez-Sanchez, A.¹  Izquierdo, Maria Teresa²  Ghanbaja, Jaafar³  Medjandi, Ghouti³  Mathieu, Sandrine³  Celzard, Alain¹  Fierro, Vanessa¹ 

[1] Univ Lorraine N 7198, ENSTIB, CNRS, Inst Jean Lamour, 27 Rue Philippe Seguin,CS 60036, F-88026 Epinal, France

[2] ICB CSIC, Inst Carboquim, Miguel Luesma Casten 4, Zaragoza 50018, Spain

[3] Univ Lorraine, UMR CNRS, Inst Jean Lamour, 7198 Parc Saurupt,CS 50840, F-54011 Nancy, France

关键词: Supercapacitor;    Ordered mesoporous carbon;    Template method;    Phenolic biosourced precursor;   

DOI  :  10.1016/j.jpowsour.2017.01.099

来源: Elsevier

【 摘 要 】

Hierarchically porous, oxygen-doped ordered mesoporous carbons (OMCs) were synthesised and compared for the first time from different types of plant-derived polyphenols through a nanocasting route: phloroglucinol, gallic acid, catechin and Mimosa tannin. All are secondary metabolites naturally occurring in various plant species and are available at low cost at the industrial scale. The infiltration was carried out in one single step without using toxic solvents or long polymerisation-stabilisation times. When applied as electrode materials for supercapacitors in 1 M H2SO4 electrolyte, those OMCs led to specific capacitances up to 277 F g(-1) at 0.5 mV s(-1) and high rate capabilities as measured by cyclic voltammetry, good cycling stabilities up to 5000 cycles and maximum energy densities between 15 and 8 W h kg(-1) under exceptionally high power outputs ranging from 200 W kg(-1) to 22.1 kW kg(-1), respectively, in the range of current density of 0.1-12 A g(-1), as determined by galvanostatic charge - discharge. Moreover, electrochemical impedance spectroscopy tests evidenced that the gallic acid-derived electrode exhibited the highest electrical conductivity and the fastest frequency response, making it an excellent candidate for high-power commercial devices. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

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