Three-dimensional palladium-rhodium nanosheet assemblies: Highly efficient catalysts for methanol electrooxidation.

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ID: 26982
2019
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Abstract
Even though substantial attention has been focused on exploring promising palladium-based catalysts, the creation of electrocatalysts with simultaneous high activity and reduced cost for fuel cell reactions remains a challenge. Here, we report on the design and construction of a new class of three-dimensional (3D) palladium-rhodium (PdRh) nanosheet assembly (NSA) catalysts through a seed-mediated growth method. Interestingly, the well-defined NSAs with optimized electronic structures and highly open 3D structures exhibit greatly enhanced electrocatalytic activity toward the methanol oxidation reaction (MOR). In particular, optimized PdRh NSAs have a mass activity of 1672.7 mA mg for the MOR, 5.4 times higher than that of commercial Pd/C catalysts (303.8 mA mg). More importantly, these PdRh NSAs also display improved MOR stability, with stable high electrocatalytic performance for more than 250 potential cycles.
Reference Key
shang2019threedimensionaljournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Shang, Hongyuan;Xu, Hui;Jin, Liujun;Chen, Chunyan;Wang, Cheng;Song, Tongxin;Du, Yukou;
Journal Journal of colloid and interface science
Year 2019
DOI
S0021-9797(19)30986-5
URL
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