Synthesis of three-dimensional hierarchical porous carbon for high-performance supercapacitors

被引：6

作者：

Yang, Wang ^{[1
,2
]}

Yang, Wu ^{[1
]}

Kong, Lina ^{[1
]}

Song, Ailing ^{[1
]}

Qin, Xiujuan ^{[1
,2
]}

机构：

[1] Yanshan Univ, Coll Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, State key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

来源：

IONICS | 2018年 / 24卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Hierarchical porous carbon; Carbonization temperature; Supercapacitors; MESOPOROUS CARBON; HYDROTHERMAL SYNTHESIS; ENERGY-STORAGE; SURFACE-AREA; PORE-SIZE; NITROGEN; ELECTRODES; CAPACITANCE; NANOSHEETS; STRATEGY;

D O I：

10.1007/s11581-017-2432-z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three-dimensional hierarchical porous carbons were synthesized by direct carbonization of glucose and zinc nitrate mixtures. The effects of carbonization temperature on the formation of the microscopic pore structure were studied. When tested in 6 M KOH by three-electrode system, the carbon sample carbonized at 750 A degrees C shows the best electrochemical performance compared to the other samples. High specific capacitance (276 F g(-1)) is obtained at 0.3 A g(-1), and the capacitance still maintains 205 F g(-1) when tested at 10 A g(-1). Moreover, the sample also possesses good cycling stability with only a loss of 3.7% after 10,000 cycles at 5 A g(-1). The facile preparation method and hierarchical porous structure render this carbon material a promising candidate for high-performance supercapacitors application.

引用

页码：3133 / 3141

页数：9

共 45 条

[1] Effect of pore size and surface area of carbide derived carbons on specific capacitance [J].