Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (07): 1494-1500.doi: 10.3866/PKU.WHXB201304271

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

Synthesis and Electrochemical Performance of Microporous Carbon Using a Zinc(II)-Organic Coordination Polymer

QIAN Jia-Sheng, LIU Ming-Xian, GAN Li-Hua, LÜ Yao-Kang, CHEN Ling-Yan, YE Rui-Jie, CHEN Long-Wu   

  1. Department of Chemistry, Tongji University, Shanghai 200092, P. R. China
  • Received:2013-01-17 Revised:2013-04-26 Published:2013-06-14
  • Contact: LIU Ming-Xian, GAN Li-Hua E-mail:liumx@tongji.edu.cn;ganlh@tongji.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21207099, 21273162), Science and Technology Commission of Shanghai Municipality, China (11nm0501000, 12ZR1451100), Key Subject of Shanghai Municipal Education Commission, China (J50102), and Fundamental Research Funds for the Central Universities, China (2011KJ023).

Abstract:

Microporous carbon was prepared using a novel procedure based on a zinc(II)-organic coordination polymer. The polymer was prepared through the coordination interaction of zinc ions with tartaric acid, and then it was introduced into the open networks of resorcinol/formaldehyde (R/F) resol using hydrogen-bonding interactions. The R/F resol and zinc-organic coordination compound system copolymerized to produce an R/F and zinc-organic coordination copolymer. The copolymer was then heat-treated at 950℃ to decompose and evaporate zinc to fabricate microporous carbon materials. The carbon materials possessed relatively regular large micropores, with a specific surface area of up to 1260 m2·g-1 and a total pore volume of 0.63 cm3·g-1. The resultant microporous carbon materials were used as supercapacitor electrodes, exhibiting an equivalent series resistance of 0.46 Ω, and ideal capacitive behavior with a rectangular shape in cyclic voltammograms. Galvanostatic charge/discharge measurements of the carbon materials gave a specific capacitance of 196 F·g-1 at a current density of 1 A· g-1 and 137 F·g-1 at a large current density of 10 A·g-1. A high retention of 98% was measured for the long-term cycling stability (~1000 cycles) of the mesoporous carbon. Overall, the microporous carbon materials exhibited very good electrochemical performance. This study highlights the potential of well-designed microporous carbon materials as electrodes for diverse supercapacitor applications.

Key words: Microporous carbon, Synthesis, Electrochemical performance, Zinc(II)-organic coordination polymer, Hydrogen-bonding interaction, Electrode material

MSC2000: 

  • O646