Issue 5, 2012
From the journal:

RSC Advances

Waste paper based activated carbon monolith as electrode materials for high performance electric double-layer capacitors

Mao-Cheng Liu,a   Ling-Bin Kong,*ab   Chao Lu,a   Xiao-Ming Li,a   Yong-Chun Luob  and  Long Kangb  

* Corresponding authors

a State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, P. R. China

b School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, P. R. China
E-mail: konglb@lut.cn
Fax: +86-931-2976578
Tel: +86-931-2976579

Abstract

A surface modified carbon monolith (m-CM) was successfully synthesized by carbonization of a waste paper precursor, followed by a simple surface modification with a HNO3 solution. The morphology, pore structure, and surface functional groups of the as-obtained m-CM are characterized by scanning electron microscopy (SEM), N2 adsorption–desorption measurements, and Fourier transform infrared spectroscopy (FT-IR), respectively. The electrochemical properties are investigated by cyclic voltammetry (CV), galvanostatic charge–discharge, and electrochemical impedance spectroscopy (EIS). After surface modification, the surface hydrophilicity and the electrical conductivity of the m-CM is increased by introducing functional groups and dissolution of the impurities, thus the electrochemical performances of the m-CM are significantly improved. A high gravimetric capacitance (Cm) and volumetric capacitance (Cv) of 232 F g−1 and 36.7 F cm−3 is obtained at a current density of 5 mA cm−2 in 2 M KOH electrolyte, respectively. Based on the above investigation, such a treatment could be a promising method to convert organic waste to high-performance carbon electrode materials for electric double-layer capacitors.

Graphical abstract: Waste paper based activated carbon monolith as electrode materials for high performance electric double-layer capacitors

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C2RA01175A
Article type
Paper
Submitted
24 Nov 2011
Accepted
24 Nov 2011
First published
06 Jan 2012

RSC Adv., 2012,2, 1890-1896

Permissions

Request permissions

Waste paper based activated carbon monolith as electrode materials for high performance electric double-layer capacitors

M. Liu, L. Kong, C. Lu, X. Li, Y. Luo and L. Kang, RSC Adv., 2012, 2, 1890 DOI: 10.1039/C2RA01175A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements