Carbon nanotubes-based PdM bimetallic catalysts through N-system for efficient ethanol oxidation and hydrogen evolution reaction.

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ID: 4934
2019
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Abstract
Transitional metal-nitrogen-carbon system is a promising candidate to replace the Pt-based electrocatalyst due to its superior activity, durability and cost effectiveness. In this study, we have designed a simple strategy to fabricate carbon nanotubes-supported binary-nitrogen-carbon catalyst via wet-chemical method. Palladium and transitional metals (M, i.e. manganese cobalt and copper) nanoparticles are anchored through four-nitrogen system onto carbon nanotubes (denoted as PdM-N/CNTs). This material has been used as bifunctional electrocatalyst for electrochemical ethanol oxidation reaction and hydrogen evolution reaction for the first time. The N-linked nanoparticles onto carbon nanotubes plays a crucial role in intrinsic catalytic activity for both reactions in 1 M KOH electrolyte. Among three PdM-N/CNTs catalysts, the PdMn-N/CNTs catalyst exhibits higher catalytic activity in terms of current density, mass activity and stability compared to the benchmark Pt/C. The robust electrocatalysis are inherited from the better attachment of PdMn through N-system onto carbon nanotubes, comparatively smaller particles formation with better dispersion and higher electrical conductivity.
Reference Key
begum2019carbonscientific Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Begum, Halima;Ahmed, Mohammad Shamsuddin;Lee, Dong-Weon;Kim, Young-Bae;
Journal Scientific reports
Year 2019
DOI
10.1038/s41598-019-47575-w
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