Abstract
Engineering binary Pd-based nanocatalysts with desirable morphology and structure has been of vital significance for the fabrication and modification of outstandingly excellent electrocatalysts. To embody the electrocatalysts with outstanding catalytic activity, it should be supposed to combine both the morphology advantages and the bifunctional effects. We herein report our significant advances in designing the unique binary PdNi hollow nanospheres with highly exposed active sites and tunable compositions. Owing to the bifunctional and electronic effect between Pd and Ni, as well as the unique hollow nanosphere structure, the unique PdNi hollow nanospheres exhibit outstandingly excellent catalytic activity towards ethylene glycol electrooxidation with the mass activity of 3152 mA mg−1, which is 4.28-fold enhancement than that of the commercial Pd/C. The findings in this work may be favorable for greatly enhancing the catalytic activity by constructing the catalysts with maximized utilization of noble metals.
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