Please use this identifier to cite or link to this item: https://doi.org/10.1021/ja211433h
Title: Electrocatalytically active graphene-porphyrin MOF composite for oxygen reduction reaction
Authors: Jahan, M.
Bao, Q. 
Loh, K.P. 
Issue Date: 18-Apr-2012
Citation: Jahan, M., Bao, Q., Loh, K.P. (2012-04-18). Electrocatalytically active graphene-porphyrin MOF composite for oxygen reduction reaction. Journal of the American Chemical Society 134 (15) : 6707-6713. ScholarBank@NUS Repository. https://doi.org/10.1021/ja211433h
Abstract: Pyridine-functionalized graphene (reduced graphene oxide) can be used as a building block in the assembly of metal organic framework (MOF). By reacting the pyridine-functionalized graphene with iron-porphyrin, a graphene- metalloporphyrin MOF with enhanced catalytic activity for oxygen reduction reactions (ORR) is synthesized. The structure and electrochemical property of the hybrid MOF are investigated as a function of the weight percentage of the functionalized graphene added to the iron-porphyrin framework. The results show that the addition of pyridine-functionalized graphene changes the crystallization process of iron-porphyrin in the MOF, increases its porosity, and enhances the electrochemical charge transfer rate of iron-porphyrin. The graphene-metalloporphyrin hybrid shows facile 4-electron ORR and can be used as a promising Pt-free cathode in alkaline Direct Methanol Fuel Cell. © 2012 American Chemical Society.
Source Title: Journal of the American Chemical Society
URI: http://scholarbank.nus.edu.sg/handle/10635/76048
ISSN: 00027863
DOI: 10.1021/ja211433h
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