Issue 32, 2014

Facile synthesis of highly graphitized porous carbon monoliths with a balance on crystallization and pore-structure

Abstract

An efficient strategy is developed for producing hierarchically porous graphite (HPG) monoliths with a bimodal pore structure through a confined graphitizing process with FeCl3 as the catalyst. The microspace in a silica microreactor is used for molding and protecting the carbon structure without collapse during crystallization. Especially, the confined graphitization approach is favorable for forming highly crystallized graphite materials with large specific surface at low preparation temperature. It balances the benefits of a porous structure and degree of crystallization. Due to the outstanding physical and chemical properties, the graphitized porous carbon exhibits excellent electrochemical performances. HPG shows high sensitivity for use as sensing electrodes. Additionally, HPG also exhibits remarkable stabilization on capacitance at large current densities as a supercapacitor. There is hardly any loss in specific capacitance even with a charge current of 30 to 50 A gāˆ’1.

Graphical abstract: Facile synthesis of highly graphitized porous carbon monoliths with a balance on crystallization and pore-structure

Supplementary files

Article information

Article type
Paper
Submitted
17 Apr 2014
Accepted
01 Jun 2014
First published
03 Jun 2014

J. Mater. Chem. A, 2014,2, 12785-12791

Author version available

Facile synthesis of highly graphitized porous carbon monoliths with a balance on crystallization and pore-structure

S. Tao, Y. Wang, D. Shi, Y. An, J. Qiu, Y. Zhao, Y. Cao and X. Zhang, J. Mater. Chem. A, 2014, 2, 12785 DOI: 10.1039/C4TA01909A

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