Herein, Cu/Cu 2 O foams with dendritic‐like structures were electrodeposited atop smooth Cu electrode by dynamic hydrogen bubbles technique, and then were used as efficient electrocatalysts for glycerol electrooxidation. The morphology, structure, and composition of the as‐prepared Cu/Cu 2 O foams were tuned by additives (e.g, KCl and NiCl 2 ) in the copper deposition bath to maximize their electrocatalytic performance towards glycerol electrooxidation. The as‐synthesized Cu/Cu 2 O foams showed superior electrocatalytic activity towards glycerol oxidation reaction, as demonstrated by the significant negative shift in the onset potential (~400 mV) together with up to 6 times higher oxidation current, compared to the Cu/Cu 2 O non‐porous film with the same loading. The performance of these foams was further improved via introducing minute amounts of either Ni 2+ and/or Cl ‐ ions. These additives resulted in a significant change in the structure and shape of the electrodeposited Cu/Cu 2 O textures with a concurrent increase in their roughness. Material and electrochemical characterization (e.g., SEM, XRD, XPS, LSC and CV) techniques were used to link the observed enhancements into the morphology, composition, and structure of the as‐synthesized Cu/Cu 2 O foam materials.

中文翻译：

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量身定制的多孔催化剂：镍掺杂的Cu / Cu2O泡沫可实现高效的甘油电氧化

在此，通过动态氢气泡技术将具有树状结构的Cu / Cu 2 O泡沫通过动态氢气泡技术电沉积在光滑的Cu电极上，然后用作甘油电氧化的有效电催化剂。所制备的Cu / Cu 2 O泡沫的形态，结构和组成可通过铜沉积浴中的添加剂（例如KCl和NiCl 2）进行调节，以最大程度地发挥其对甘油电氧化的电催化性能。合成后的Cu / Cu 2 O泡沫对甘油氧化反应表现出优异的电催化活性，与铜/相比，其起始电势（〜400 mV）显着的负移以及高达6倍的高氧化电流证明了这一点。具有相同负载的Cu 2 O无孔膜。通过引入微量的Ni 2+和/或Cl-离子，可进一步改善这些泡沫的性能。这些添加剂导致电沉积的Cu / Cu 2 O织构的结构和形状发生重大变化，同时粗糙度也随之增加。使用材料和电化学表征（例如SEM，XRD，XPS，LSC和CV）技术将观察到的增强作用与合成的Cu / Cu 2 O泡沫材料的形态，组成和结构联系起来。