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研究了一种通过固相加热一步合成碳载钴酞菁复合催化剂(CoPc/C)的制备方法.通过XRD,IR对制备的催化剂进行了表征.结果显示,得到的产物为CoPc/C,平均粒径30nm.利用极化曲线和交流阻抗等电化学方法测试了其在碱性介质中对氧还原的催化性能.该催化剂在碱性介质中(6mol·L-1KOH)空气气氛下,氧还原的初始电位达到0V,电极电位为-0.10V vs·Hg/HgO时电流密度达到100mA·cm-2,有显著的氧还原电催化效果.对实验得到的极化曲线及交流阻抗数据进行拟合处理及计算,获得相关动力学参数.
A one-step synthesis of cobalt-loaded cobalt phthalocyanine composite catalyst (CoPc / C) by solid-state heating was studied. The prepared catalyst was characterized by XRD and IR. The results showed that the obtained product was CoPc / Particle size of 30nm.The electrochemical performance of the catalyst in reduction of oxygen in alkaline medium was tested by means of polarization curves and electrochemical impedance spectroscopy.The oxygen reduction of the catalyst in an alkaline medium (6mol·L-1KOH) Of the initial potential reaches 0V, the electrode potential of -0.10V vs · Hg / HgO when the current density reaches 100mA · cm-2, there is a significant oxygen reduction electrocatalytic effect of the experimental polarization curve and the AC impedance data fitting Processing and calculation, access to the relevant kinetic parameters.