标题:Synthesis of garlic skin-derived 3D hierarchical porous carbon for high-performance supercapacitors
作者:Zhang, Qing; Han, Kuihua; Li, Shijie; Li, Ming; Li, Jinxiao; Ren, Ke
作者机构:[Zhang, Qing; Han, Kuihua; Li, Shijie; Li, Ming; Li, Jinxiao; Ren, Ke] Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China 更多
通讯作者:Han, Kuihua
通讯作者地址:[Han, KH]Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China.
来源:NANOSCALE
出版年:2018
卷:10
期:5
页码:2427-2437
DOI:10.1039/c7nr07158b
摘要:A three-dimensional hierarchical porous carbon is synthesized via a facile chemical activation route with garlic skin as the precursor and KOH as the activating agent. The as-obtained carbon presents a high specific surface area of 2818 m(2) g(-1) and a hierarchical porous architecture containing macroporous frameworks, mesopores (2-4 nm), and micropores (0.6-1.0 nm). As the electrode material for a supercapacitor, due to its unique interconnected porous structure, this garlic skin-derived carbon exhibits excellent electrochemical performance and cycling stability. At a current density of 0.5 A g(-1), the capacitance is up to 427 F g(-1) (162 F cm(-3)). Even at a high current density of 50 A g(-1), the capacitance can be maintained to a high value of 315 F g(-1) (120 F cm(-3)). After charging-discharging at a current density of 4.5 A g(-1) for 5000 cycles, the capacitance retention is as high as 94%. The results suggest that this garlic skin-derived 3D hierarchical porous carbon is a promising electrode material for high-performance supercapacitors.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:5
Scopus被引频次:9
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041469436&doi=10.1039%2fc7nr07158b&partnerID=40&md5=b16fe4799c3ac9f77924de372931a993
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