Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Electric double-layer capacitors based on highly graphitized nanoporous carbons derived from ZIF-67
Chemistry - A European Journal, Volume 20, No. 26, Year 2014
Notification
URL copied to clipboard!
Description
Nanoporous carbons (NPCs) have large specific surface areas, good electrical and thermal conductivity, and both chemical and mechanical stability, which facilitate their use in energy storage device applications. In the present study, highly graphitized NPCs are synthesized by one-step direct carbonization of cobalt-containing zeolitic imidazolate framework-67 (ZIF-67). After chemical etching, the deposited Co content can be completely removed to prepare pure NPCs with high specific surface area, large pore volume, and intrinsic electrical conductivity (high content of sp2-bonded carbons). A detailed electrochemical study is performed using cyclic voltammetry and galvanostatic charge-discharge measurements. Our NPC is very promising for efficient electrodes for high-performance supercapacitor applications. A maximum specific capacitance of 238 F-g-1 is observed at a scan rate of 20 mV-s-1. This value is very high compared to previous works on carbon-based electric double layer capacitors. Highly graphitized nanoporous carbons (NPCs) are synthesized by one-step direct carbonization of cobalt-containing zeolitic imidazolate framework-67 (ZIF-67). After chemical etching, the deposited Co nanoparticles are completely removed to prepare pure NPCs with high specific surface area, large pore volume, and intrinsic electrical conductivity. The specific energy of the NPC-based supercapacitor reached 19.6 W-h-kg-1 at a specific power of 700 W-kg-1 (see figure). © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Authors & Co-Authors
Torad, Nagy L.K.
Japan, Tsukuba
National Institute for Materials Science
Japan, Tokyo
Waseda University
Salunkhe, Rahul R.
Japan, Tsukuba
National Institute for Materials Science
Li, Yunqi
Japan, Tsukuba
National Institute for Materials Science
Hamoudi, Hicham
Japan, Tsukuba
National Institute for Materials Science
Imura, Masataka
Japan, Tsukuba
National Institute for Materials Science
Sakka, Yoshio
Japan, Tsukuba
National Institute for Materials Science
Yamauchi, Yusuke
Japan, Tsukuba
National Institute for Materials Science
Japan, Tokyo
Waseda University
Statistics
Citations: 411
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1002/chem.201400089
ISSN:
09476539
Research Areas
Environmental