Preparing two-dimensional microporous carbon from Pistachio nutshell with high areal capacitance as supercapacitor materials

被引：188

作者：

Xu, Jiandong ^{[1
]}

Gao, Qiuming ^{[1
]}

Zhang, Yunlu ^{[1
]}

Tan, Yanli ^{[1
]}

Tian, Weiqian ^{[1
]}

Zhu, Lihua ^{[1
]}

Jiang, Lei ^{[1
]}

机构：

[1] Beihang Univ, Beijing Key Lab Bioinspired Energy Mat & Devices, Key Lab Bioinspired Smart Interfacial Sci & Techn, Minist Educ,Sch Chem & Environm, Beijing 100191, Peoples R China

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

基金：

美国国家科学基金会;

关键词：

CHEMICAL-VAPOR-DEPOSITION; HIGH-PERFORMANCE; ACTIVATED CARBONS; POROUS CARBON; IONIC LIQUID; HYDROGEN STORAGE; SURFACE OXIDES; GRAPHENE FILMS; NANOTUBES; TEMPLATE;

D O I：

10.1038/srep05545

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Two-dimensional (2D) porous carbon AC-SPN-3 possessing of amazing high micropore volume ratio of 83% and large surface area of about 1069 m(2) g(-1) is high-yield obtained by pyrolysis of natural waste Pistachio nutshells with KOH activation. The AC-SPN-3 has a curved 2D lamellar morphology with the thickness of each slice about 200 nm. The porous carbon is consists of highly interconnected uniform pores with the median pore diameter of about 0.76 nm, which could potentially improve the performance by maximizing the electrode surface area accessible to the typical electrolyte ions (such as TEA(+), diameter similar to 0.68 nm). Electrochemical analyses show that AC-SPN-3 has significantly large areal capacitance of 29.3/20.1 mu F cm(-2) and high energy density of 10/39 Wh kg(-1) at power of 52/286 kW kg(-1) in 6 M KOH aqueous electrolyte and 1 M TEABF(4) in EC-DEC (1:1) organic electrolyte system, respectively.

引用

页数：6

共 62 条

[11] Template-Directed Synthesis of Pillared-Porous Carbon Nanosheet Architectures: High-Performance Electrode Materials for Supercapacitors [J].