气体多孔电极相界面结构分析研究

A mathematical model for air electrodes under a fluctuate load has been developed. Wavelet approach was used to separate different electrochemical singnals and to remove white noise in electrochemical measurements. An electrochemical impendance analysis (EIA) based upon wavelet has been established. That makes a dramatic reduction in EIA time in comparision with the conventional EIA. The influnce of substrate carbon on the electron distribution in metal catalyst was taken inton account in a study of catalysts Pt/C and Pt3Fe/C for oxygen reduction reaction. The mechanism of Fe enhancement in performance of catalyst Pt3Fe/C was clarified by means of ab initial and density function theory (DFT) approaches.

创建定量表征气体电极波动负载下电极过程动力学行为的理论体系。将小波分析用于多孔电极电化学信号分离，去噪和重构：建立以小波变换为核心的电化学运算阻抗测试体系；在原子水平上探索空气电极中催化作用机理。用并行多线程可视化技术描述，仿真和揭示多孔电极的电化学行为和相界面结构。为研究高效空气电极提供理论依据。