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Flower-like PdCu catalyst with high electrocatalytic properties for ethylene glycol oxidation

机译:具有高电催化性质的花样PDCU催化剂用于乙二醇氧化

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摘要

A highly efficient PdCu alloy nanocatalyst has been designed and synthesized, which exhibited excellent selectivity and activity toward ethylene glycol (EG) oxidation reaction with a low loading of electrocatalyst. The results of characterization show that the atom ratio of 1:1 (Pd:Cu) as well as the addition of polyvinyl pyrrolidone (PVP) and potassium bromide (KBr) contributed to the unique morphology of the as-prepared PdCu catalyst. Owing to the flower-like nanostructure and the synergistic effect between Pd and Cu, PdCu electrocatalyst has distinct enhancement in electrocatalytic performance whose forward peak current density is almost 3.2 and 4.3 times higher than that of pure Pd and commercial Pd/C electrocatalysts. We put forward that the prepared PdCu catalyst may have promising and alternative applications in direct EG alkaline fuel cells.
机译:已经设计和合成了高效的PDCU合金纳米催化剂,其表现出优异的选择性和对乙二醇(例如)氧化反应的优异选择性和活性与低负载催化剂。 表征结果表明,1:1(Pd:Cu)的原子比以及加入聚乙烯吡咯烷酮(PVP)和溴化钾(KBR)促成了AS制备的PDCU催化剂的独特形态。 由于花样纳米结构和Pd和Cu之间的协同作用,PDCU电催化剂在电催化性能下具有明显的增强,其前峰电流密度几乎高出3.2%,高于纯Pd和商业Pd / C电催化剂的4.3倍。 我们提出制备的PDCU催化剂可能具有直接例如碱性燃料电池的有前途和替代应用。

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