原电池
纳米颗粒
材料科学
单排替反应
甘油
电化学
化学工程
催化作用
纳米技术
电极
有机化学
冶金
化学
物理化学
工程类
作者
Tong Cai,Pujing Zhang,Guangwei She,Qingli Zhou,Lixuan Mu,Yun Liu,Wensheng Shi
标识
DOI:10.1142/s1793604722500138
摘要
The development of electrocatalysts with high activity is essential to convbar glycerol into value-added chemicals through electrocatalytic oxidation. Nano-sized metals with prickly structures are expected to possess high electrocatalytic activity due to the strong electric field at the sharp tips. We propose a facile approach to prepare Au nanoparticles with prickly structure by galvanic displacement in this work. The reaction between Au 3+ and Ni generates in situ highly dispersed Au nanoparticles with prickly structures on the Ni foam. Owing to appropriate prickly structure, the Au nanoparticles prepared at 25 ∘ C for 30 s exhibited the best electrocatalytic performance. Finite element simulation method simulations show that the high-density of positive charge at the tips forms strong electric field, which enriches OH − ions and promotes glycerol oxidation, thus exhibiting excellent electrocatalytic activity. This study will guide further design/development of electrocatalytic nanostructured Au particles and provide an effective route to electrocatalytically oxidize glycerol.
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