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中文摘要：
采用连续电位扫描法对含有Pd（Ⅱ）离子的溶液进行多次循环电位扫描,将钯沉积到金电极、多壁碳纳米管（WCNTs）-Nafion修饰的金电极上,制备了钯纳米、钯纳米-WCNTs修饰的金电极（Pd/Au、Pd-WCNTs/Au电极）,利用循环伏安法、交流阻抗法对修饰电极的电化学特性进行了表征,利用差分脉冲法及计时电流法分别研究了Pd/Au电极、Pd-WCNTs/Au电极、Au电极及Pb电极对甲烷电氧化的催化活性,并研究了电极的稳定性和重现性,结果表明,Pd-WCNTs/Au电极对甲烷具有最高的电催化活性,重现性好、稳定性高。
英文摘要：
Pd nanoparticles and Pd nanoparticle-WCNT modified Au electrodes were prepared by a cyclic potential sweep in a solution containing Pd（ II） ions with a Au electrode and a WCNT-Nafion modified electrode.Voltammetric characterization of the electrodes was carried out by cyclic voltammetry（ CV） and electrochemical impedance. Different pulse voltammograms and amperometric I-T curves were used to study the electro-catalyticoxidation of methane on Pd-WCNT / Au,Pb / Au,Pb,and Au electrodes. The highest electro-catalytic activity,satisfactory reproducibility,and stability were observed on the Pd-WCNT / Au electrode.
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