博士生导师
硕士生导师
教师拼音名称：lidongxiang
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学历：博士研究生
学位：理学博士
毕业院校：山东大学
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关键字：CATALYSTS; METHANOL; RATIO; CO
摘要：Pd-based nanocatalysts hold significant promise for application in alkaline direct ethanol fuel cells (DEFCs). To address the challenges of low Pd atom utilization and poor reaction kinetics in conventional Pd-based catalysts, a self-etching strategy has been developed to synthesize Pd3Pb1 nanoparticles (NPs) with tunable size and abundant tensile strain. The nanoparticles demonstrated a markedly enhanced electrocatalytic performance. Pd3Pb1 NPs-1 exhibited a current density of 2565 mA mgPd -1 for the ethanol oxidation reaction (EOR). Following self-etching, smaller Pd3Pb1 NPs-2 were synthesized, achieving a higher current density of 2820 mA mgPd -1 for EOR. Even after prolonged cyclic voltammetry (CV) testing, the Pd3Pb1 NPs-2 exhibited excellent stability. The high mass activity is attributed to a favorable balance between active intermediates and blocking species at the catalyst interface. This work presents a promising strategy for constructing nanocatalysts with tunable alloying degrees, offering highly efficient catalysts for fuel cell applications. Moreover, this study provides a reliable approach to preparing monodisperse nanocatalysts with controllable size and morphology through self-etching techniques.
卷号：17
期号：2
是否译文：否
