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首页> 外文期刊>International Journal of Electrochemical Science >A Facile Route for Preparation of High-Performance Hierarchical Porous Carbons for Supercapacitor Electrodes
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A Facile Route for Preparation of High-Performance Hierarchical Porous Carbons for Supercapacitor Electrodes

机译：一种用于超级电容器电极的高性能分层多孔碳的制备方法

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摘要

In this work, a facile route for preparation of high-performance hierarchical porous carbons fromstarch was described. The hierarchical porous carbons with developed micropores and mesopores wereprepared, and the pore size was distributed at 2, 9 and 13 nm. The high-performance porous carbonswith specific capacity of 221 F/g was obtained when the mass ratio of starch to zinc nitrate was 1:1 ando the carbonization temperature was 800 C. It also possessed excellent specific capacitance retentionabout 96.4 % of the initial value even after 5000 cycles, and the higher capacitance retention of 88.7%was obtained when the current density changing from 0.2 to 2 A/g. The pore structure and theelectrochemical performance could be tuned by changing the reaction conditions. The experimentalresults suggested the hierarchical porous carbons could be an ideal candidate for supercapacitorapplications.
机译：在这项工作中，描述了一种从淀粉制备高性能分级多孔碳的简便方法。制备具有发达的微孔和中孔的分级多孔碳，并且孔径分布在2、9和13nm。当淀粉与硝酸锌的质量比为1：1且碳化温度为800 C时，获得了比容量为221 F / g的高性能多孔碳。它还具有优异的比电容保持率，即使是初始值的96.4％在经过5000次循环后，当电流密度从0.2变为2 A / g时，电容保持率达到了88.7％。改变反应条件可以调节孔结构和电化学性能。实验结果表明，分层多孔碳可能是超级电容器应用的理想选择。

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