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Citation: ZHAO Wei-Li, ZHOU De-Bi, SUN Xin-Yang, TAN Long-Hui. One-step Preparation of Carbon Supported Co-phthalocyanine and Its Electrochemical Reduction of Oxygen in Base Medium[J]. Chinese Journal of Applied Chemistry, ;2010, 27(2): 183-190. doi: 10.3724/SP.J.1095.2010.90147 shu

One-step Preparation of Carbon Supported Co-phthalocyanine and Its Electrochemical Reduction of Oxygen in Base Medium

College of Chemistry & Chemical Engineering, Central South University, Changsha 410083

Received Date: 28 February 2009
Revised Date: 6 July 2009

A composite electrocatalyst cobalt-phthalocyanine loaded on carbon black VulcanXC-72(CoPc/C) was synthesized in one-step reaction through calcination,which could be used as the catalyst of air electrode. The product was characterized by XRD and IR techniques and shown to be CoPc/C composite with an average particle size of 30 nm. Its activity for oxygen reduction reaction(ORR) was evaluated by polarization curve and impedance spectrum in 6 mol/L KOH solution. With VulcanXC-72 pretreated in HNO₃ as the carbon support,the CoPc/C calcinated at 600℃ exhibited the best catalytic activity. The polarization plots recorded at the electrode catalyzed with this product displyed an onset for ORR at -0.03 V(Hg/HgO). The current density is 90×10^-3 A/cm² at -0.2 V in air.
- fuel cells(AFC),
- cobalt-phthalocyanine(CoPc),
- oxygen reduction reaction(ORR)
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