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      Standing mesochannels: mesoporous PdCu films with vertically aligned mesochannels from nonionic micellar solutions

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      Author
      Iqbal, M.
      Kim, J.
      Yuliarto, B.
      Jiang B.
      Li C.
      Dag, Ö.
      Malgras, V.
      Yamauchi, Y.
      Date
      2018
      Source Title
      ACS Applied Materials and Interfaces
      Print ISSN
      1944-8244 (print)
       
      1944-8252 (online)
       
      Publisher
      American Chemical Society
      Volume
      10
      Issue
      47
      Pages
      40623 - 40630
      Language
      English
      Type
      Article
      Item Usage Stats
      118
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      167
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      Abstract
      Mesoporous bimetallic palladium (Pd) alloy films with mesochannels perpendicularly aligned to the substrate are expected to show superior electrocatalytic activity and stability. The perpendicular mesochannels allow small molecules to efficiently access the active sites located not only at the surface but also within the film because of low diffusion resistance. When compared to pure Pd films, alloying with a secondary metal such as copper (Cu) is cost-effective and promotes resistance against adventitious poisoning through intermediate reactions known to impair the electrocatalytic performance. Here, we report the synthesis of mesoporous PdCu films by electrochemical deposition in nonionic micellar solutions. The mesoporous structures are vertically aligned on the substrate, and the final content of Pd and Cu can be adjusted by tuning the initial precursor molar ratio in the electrolyte solution.
      Keywords
      Alloys
      Copper
      Mesoporous materials
      Micelles
      Nonionic surfactant
      Palladium
      Vertically aligned mesochannels
      Permalink
      http://hdl.handle.net/11693/49996
      Published Version (Please cite this version)
      https://doi.org/10.1021/acsami.8b13662
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      • Department of Chemistry 622
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