Superior capacitive performance of active carbons derived from Enteromorpha prolifera

被引：156

作者：

Gao, Xiuli ^{[1
]}

Xing, Wei ^{[1
]}

Zhou, Jin ^{[2
]}

Wang, Guiqiang ^{[2
]}

Zhuo, Shuping ^{[2
]}

Liu, Zhen ^{[1
]}

Xue, Qingzhong ^{[1
]}

Yan, Zifeng ^{[1
]}

机构：

[1] China Univ Petr, Sch Sci, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China

[2] Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2014年 / 133卷

基金：

中国国家自然科学基金;

关键词：

Biomass; enteromorpha prolifera; active carbon; KOH activation; supercapacitor; DOUBLE-LAYER CAPACITORS; POROUS CARBON; SURFACE-AREA; NANOPOROUS CARBON; CO2; CAPTURE; HIGH-ENERGY; PORE-SIZE; SUPERCAPACITORS; ACTIVATION; ELECTRODES;

D O I：

10.1016/j.electacta.2014.04.101

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Enteromorpha prolifera (E.prolifera), an ocean biomass, was used as raw materials to prepare active carbons by a two-step strategy (pre-carbonization followed by chemical activation). The as-prepared active carbons have been characterized by a variety of means such as N-2 adsorption, field emission scanning electron microscope, transmission electron microscope, Raman spectroscopy. The results showed that the carbons have large surface area and developed porosity with micro-meso hierarchical pore texture. As evidenced by electrochemical measurements, the specific capacitance of the carbons can reach up to 296 F g(-1). More importantly, the carbons can maintain a high capacitance of up to 152 F g(-1) at a very high current density of 30 A g(-1), highlighting the promise of the carbons for high power applications. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：459 / 466

页数：8

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