Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (6): 1510.doi: 10.7503/cjcu20120803

• Physical Chemistry • Previous Articles     Next Articles

Preparation of Metalloporphyrin with Disulfide Bond and Electrocatalytic Reduction of Oxygen

HUANG Xiu-You, HU Bing-Cheng, XU Shi-Chao   

  1. College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2012-09-03 Online:2013-06-10 Published:2013-04-25

Abstract:

A novel amino acid derivatised mesoporphyrin Co(Ⅱ)-[2,7,12,18-tetramethyl-3,8-diethyl-13,17-(propionylaminoethyl-dithio-ethyaminoformylethyl)-29, 34-bis-(methoxy-formyl)]-prophyrin[Co(Ⅱ)MPDTEP, Ⅴ] was prepared from hemin by a six-steps reaction including deferrization, esterification, cataly-tic hydrogenation, hydrolyzation, condensation and complexation. The target products were characterized. The effects of the reaction time and temperature on the yields of the product [2,7,12,18-tetramethyl-3,8-diethyl-13,17-(propionylaminoethyl-dithio-ethyaminoformylethyl)-29,34-bis-(methoxy-formyl)]-prophyrin(MPDTEP, Ⅳ) were investigated. A gold electrode modified by Co(Ⅱ)MPDTEP was prepared by self-assembly of disulfide on gold. The properties of the modified electrode were investigated by FTIR as well as electrochemical methods. This modified electrode was successfully used for the electrocatalytic reduction of oxygen.

Key words: Hemin, Porphyrin, Self-assembly, Modified electrode, Electrocatalytic reduction

CLC Number: 

TrendMD: