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根据作者对CoTSPc(四磺基酞菁钴)催化氧的电还原过程机理的研究所阐明的平面型络合活性中心的设想,用化学修饰法增加OPG(普通烧结石墨)电极表面的醌或类醌基团浓度。以达到增加平面型络合吸附的FeTSPc(四磺基酞菁铁)浓度。这种方法制备的预吸附FeTSPc的OPG电极用作氧的电还原过程的工作阴极,催化活性和稳定性都有明显的提高。
According to the supposition of the planar complexation active center which is clarified by the research on the mechanism of electro-reduction of CoTSPc (cobalt tetrasulfophthalocyanine) catalyzed by oxygen, the chemical modification method is used to increase the quinone or the like on the surface of OPG (common sintered graphite) electrode Quinone group concentration. In order to increase the concentration of FeTSPc (tetrasulfophthalocyanine) adsorbed by the planar complex. The pre-adsorbed FeTSPc-based OPG electrode prepared by this method is used as the working cathode for the oxygen reduction process. The catalytic activity and stability are obviously improved.