纳米材料基催化剂
电催化剂
纳米线
材料科学
催化作用
乙二醇
纳米技术
化学工程
化学
电化学
纳米颗粒
电极
有机化学
物理化学
工程类
作者
Xianzhuo Lao,Ze Li,Likang Yang,Ben Zhang,Wanneng Ye,Aiping Fu,Peizhi Guo
标识
DOI:10.1016/j.jechem.2022.12.056
摘要
Direct alcohol fuel cells (DAFCs) are powered by the alcohol electro-oxidation reaction (AOR), where an electrocatalyst with an optimal electronic structure can accelerate the sluggish AOR. Interestingly, strain engineering in hetero-catalysis offers a promising route to boost their catalytic activity. Herein, we report on a class of monodispersed ultrathin twisty PdBi alloy nanowires (TNWs) assemblies with face-centered structures that drive AORs. These thin nanowire structures expose a large number of reactive sites. Strikingly, Pd6Bi1 TNWs show an excellent current density of 2066, 3047, and 1231 mA mgPd−1 for oxidation of ethanol, ethylene glycol, and glycerol, respectively. The “volcano-like” behaviors observed on PdBi TNWs for AORs indicate that the maximum catalytic mass activity is a well balance between active intermediates and blocking species at the interface. This study offers an effective and universal method to build novel nanocatalysts in various applications by rationally designing highly efficient catalysts with specific strain.
科研通智能强力驱动
Strongly Powered by AbleSci AI